CA2760286A1 - Adaptive control concept for hybrid pdc/roller cone bits - Google Patents
Adaptive control concept for hybrid pdc/roller cone bits Download PDFInfo
- Publication number
- CA2760286A1 CA2760286A1 CA2760286A CA2760286A CA2760286A1 CA 2760286 A1 CA2760286 A1 CA 2760286A1 CA 2760286 A CA2760286 A CA 2760286A CA 2760286 A CA2760286 A CA 2760286A CA 2760286 A1 CA2760286 A1 CA 2760286A1
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- bit
- cutters
- indication
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- 230000003044 adaptive effect Effects 0.000 title description 2
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/14—Roller bits combined with non-rolling cutters other than of leading-portion type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Abstract
An earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to slide parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position. The bit may include a sensor to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication.
Description
TITLE OF THE INVENTION
Adaptive Control Concept for Hybrid PDC/Roller Cone Bits CROSS REFERENCE TO RELATED APPLICATIONS
None.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR
DEVELOPMENT
Not applicable.
REFERENCE TO APPENDIX
Not applicable.
BACKGROUND OF THE INVENTION
1.5 Field of the Invention. The inventions disclosed and taught herein relate generally to earth boring drill bits; and more specifically relate to hybrid PDC/roller cone earth boring drill bits.
Description of the Related Art.' Mu U.S. Patent No. 4,343,371 discloses a "hybrid rock bit ... wherein a pair of opposing extended nozzle drag bit legs are positioned adjacent a pair of opposed tungsten carbide roller cones. The extended nozzle face nearest the hole bottom has a multiplicity of diamond inserts mounted therein. The diamond inserts are strategically positioned to remove the ridges between the kerf rows in the hole bottom formed by the inserts in the roller cones."
U.S. Patent No. 7,398,837 discloses a "drill bit assembly [that] has a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element. In some embodiments, the drill bit assembly has a shaft with an end substantially coaxial to a central axis of the assembly. The end of the shaft substantially protrudes from the working portion, and at least one downhole logging device is disposed within or in communication with the shaft."
Adaptive Control Concept for Hybrid PDC/Roller Cone Bits CROSS REFERENCE TO RELATED APPLICATIONS
None.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR
DEVELOPMENT
Not applicable.
REFERENCE TO APPENDIX
Not applicable.
BACKGROUND OF THE INVENTION
1.5 Field of the Invention. The inventions disclosed and taught herein relate generally to earth boring drill bits; and more specifically relate to hybrid PDC/roller cone earth boring drill bits.
Description of the Related Art.' Mu U.S. Patent No. 4,343,371 discloses a "hybrid rock bit ... wherein a pair of opposing extended nozzle drag bit legs are positioned adjacent a pair of opposed tungsten carbide roller cones. The extended nozzle face nearest the hole bottom has a multiplicity of diamond inserts mounted therein. The diamond inserts are strategically positioned to remove the ridges between the kerf rows in the hole bottom formed by the inserts in the roller cones."
U.S. Patent No. 7,398,837 discloses a "drill bit assembly [that] has a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element. In some embodiments, the drill bit assembly has a shaft with an end substantially coaxial to a central axis of the assembly. The end of the shaft substantially protrudes from the working portion, and at least one downhole logging device is disposed within or in communication with the shaft."
U.S. Patent No. 7,350,568 discloses a "method for logging a well. Includes receiving energy with at least one array of elements coupled to a drill bit, wherein the at least one array of elements functions as an electronic array.
An apparatus for logging a well includes a drill bit and at least one array of elements coupled to the drill bit, wherein the at least one array of elements functions as an electronic array."
The inventions disclosed and taught herein are directed to an improved hybrid PDC/roller cone earth boring drill bit.
w BRIEF SUMMARY OF THE INVENTION
The present invention includes an earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of 15 cutters and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to move essentially parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting 0 position and a secondary cutting position. The bit may include one or more sensors to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication.
2s BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
Figure 1 illustrates a first elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
Figure 2 illustrates a second elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
;o Figure 3 illustrates a third elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
An apparatus for logging a well includes a drill bit and at least one array of elements coupled to the drill bit, wherein the at least one array of elements functions as an electronic array."
The inventions disclosed and taught herein are directed to an improved hybrid PDC/roller cone earth boring drill bit.
w BRIEF SUMMARY OF THE INVENTION
The present invention includes an earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of 15 cutters and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to move essentially parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting 0 position and a secondary cutting position. The bit may include one or more sensors to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication.
2s BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
Figure 1 illustrates a first elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
Figure 2 illustrates a second elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
;o Figure 3 illustrates a third elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
Figure 4 illustrates a fourth elevation view of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions;
Figure 5 illustrates a first simplified partial block diagram of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present c inventions; and Figure 6 illustrates a second simplified partial block diagram of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions.
DETAILED DESCRIPTION
The Figures described above and the written description of specific structures and functions below are not presented to limit the scope of what Applicants have invented or the scope of the appended claims. Rather, the Figures and written description are provided to teach any person skilled in the art to make ,-, and use the inventions for which patent protection is sought. Those skilled in the art will appreciate that not all features of a commercial embodiment of the inventions are described or shown for the sake of clarity and understanding.
Persons of skill in this art will also appreciate that the development of an actual commercial embodiment incorporating aspects of the present 2 inventions will require numerous implementation-specific decisions to achieve the developer's ultimate goal for the commercial embodiment. Such implementation-specific decisions may include, and likely are not limited to, compliance with system-related, business-related, government-related and other constraints, which may vary by specific implementation, location and s from time to time. While a developer's efforts might be complex and time-consuming in an absolute sense, such efforts would be, nevertheless, a routine undertaking for those of skill in this art having benefit of this disclosure. It must be understood that the inventions disclosed and taught herein are susceptible to numerous and various modifications and alternative 1c? forms. Lastly, the use of a singular term, such as, but not limited to, "a," is not intended as limiting of the number of items. Also, the use of relational terms, such as, but not limited to, "top," "bottom," "left," "right," "upper,"
"lower,"
Figure 5 illustrates a first simplified partial block diagram of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present c inventions; and Figure 6 illustrates a second simplified partial block diagram of a particular embodiment of an earth boring drill bit utilizing certain aspects of the present inventions.
DETAILED DESCRIPTION
The Figures described above and the written description of specific structures and functions below are not presented to limit the scope of what Applicants have invented or the scope of the appended claims. Rather, the Figures and written description are provided to teach any person skilled in the art to make ,-, and use the inventions for which patent protection is sought. Those skilled in the art will appreciate that not all features of a commercial embodiment of the inventions are described or shown for the sake of clarity and understanding.
Persons of skill in this art will also appreciate that the development of an actual commercial embodiment incorporating aspects of the present 2 inventions will require numerous implementation-specific decisions to achieve the developer's ultimate goal for the commercial embodiment. Such implementation-specific decisions may include, and likely are not limited to, compliance with system-related, business-related, government-related and other constraints, which may vary by specific implementation, location and s from time to time. While a developer's efforts might be complex and time-consuming in an absolute sense, such efforts would be, nevertheless, a routine undertaking for those of skill in this art having benefit of this disclosure. It must be understood that the inventions disclosed and taught herein are susceptible to numerous and various modifications and alternative 1c? forms. Lastly, the use of a singular term, such as, but not limited to, "a," is not intended as limiting of the number of items. Also, the use of relational terms, such as, but not limited to, "top," "bottom," "left," "right," "upper,"
"lower,"
"down," "up," "side," and the like are used in the written description for clarity in specific reference to the Figures and are not intended to limit the scope of the invention or the appended claims.
Particular embodiments of the invention may be described below with reference to block diagrams and/or operational illustrations of methods. It will be understood that each block of the block diagrams and/or operational illustrations, and combinations of blocks in the block diagrams and/or operational illustrations, can be implemented by analog and/or digital hardware, and/or computer program instructions. Such computer program instructions may be provided to a processor of a general-purpose computer, special purpose computer, ASIC, and/or other programmable data processing system. The executed instructions may create structures and functions for implementing the actions specified in the block diagrams and/or operational illustrations. In some alternate implementations, the ii functions/actions/structures noted in the figures may occur out of the order noted in the block diagrams and/or operational illustrations. For example, two operations shown as occurring in succession, in fact, may be executed substantially concurrently or the operations may be executed in the reverse order, depending upon the functionality/acts/structure involved.
i Computer programs for use with or by the embodiments disclosed herein may be written in an object oriented programming language, conventional procedural programming language, or lower-level code, such as assembly language and/or microcode. The program may be executed entirely on a single processor and/or across multiple processors, as a stand-alone software F package or as part of another software package.
Applicants have created an earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of cutters 30 and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to move essentially parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position. The bit may include one or more sensors to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication.
FIG. 1 is an illustration of a hybrid bit.11 that incorporates both rolling cones and fixed polycrystalline diamond compact (PDC) cutters mounted on dual cutting structures, similar to those shown in U.S. Patent No. 4,343,371 and U.S. Patent Application Publication No. 20080296068, both of which are incorporated herein by specific reference. More specifically, referring also to FIG. 2, the bit 11 comprises a bit body 13 having a longitudinal axis 15 that defines an axial center of the bit body 13. A plurality of roller cone support arms 17 extend from the bit body 13 in the longitudinal axial direction. The bit body 13 also has a plurality of blades 19 that extend in the longitudinal axial direction. The number of each of arms 17 and blades 19 is at least one but may be more than two.
Roller cones 21 are mounted to respective ones of the arms 17. A plurality of roller cone cutting inserts or cutters 25 are mounted to the roller cones 21.
In this manner, the roller cone cutters 25 are rotatably mounted to the bit body 20 13. In addition, a plurality of fixed cutting elements 31, such as PDC
cutters, are mounted to the blades 19. Examples of roller cone cutting elements 25 and fixed cutting elements 31 include tungsten carbide inserts, cutters made of super hard material such as polycrystalline diamond, and others known to those skilled in the art.
<:s FIG. 1 and FIG. 2 show both the roller cone cutting elements 25 and fixed cutting elements 31 in a neutral position or relationship with regard to the longitudinal axis 15. In this position, the roller cone cutting elements 25 and fixed cutting elements 31 overlap and complement each other.
However, certain formation types favor the roller cone cutting elements 25 3: over the fixed cutting elements 31, or vice versa. For example, the roller cone cutting elements 25 are often better suited to dense rock formations, whereas the fixed cutting elements 31 may be better suited to softer or more homogeneous formations. Therefore, it is best to match the drill bit type to the formation type the bit 11. is expected to encounter. To further complicate matters, the drill bit 11 may encounter many different formation types while excavating a single well or borehole.
c Therefore, the drill bit 11 of the present invention is preferably adjustable, such that either the roller cone cutting elements 25 or the fixed cutting elements 31 may be primary, with the other being secondary. In other words, the drill bit 11 of the present invention is preferably adjustable, such that either the roller cone cutting elements 25 may be in a primary cutting position, with W the fixed cutting elements 31 in a secondary cutting position, and vice versa.
The present invention's ability to exchange the roller cone cutting elements and the fixed cutting elements 31 between the primary cutting position and the secondary cutting position ensures that the formation is drilled, or excavated, as efficiently as possible with the least amount of wear on the bit 10. This IS ability to vary which elements 25,31 are primary and secondary may also improve the steerability of the bit 10 and bottom hole assembly (BHA) in varying formations.
In one embodiment, this adjustability is provided by mounting the roller cone cutting elements 25 and/or the fixed cutting elements 31 on the bit body 13 in such a manner as to allow them to be moved, or shifted, essentially parallel to the longitudinal axis 15 of the bit 11. In another embodiment, this adjustability is provided by mounting the arms 17 and/or the blades 19 on the bit body 13 in such a manner as to allow them to be moved essentially parallel to the longitudinal axis 15 of the bit 11. In one embodiment, the movement is '.s essentially a linear shifting, or sliding, of the arms 17 and/or the blades 19 along the bit body 13, such as through the use of a track, rail, channel, or groove system. However, other forms of movement may be used and the movement may involve more than simple displacement along the longitudinal axis 15 of the bit 11. For example, the arms 17 and/or the blades 19 may be 317 spirally, or helically, mounted on the bit body 13, such that the movement is a corkscrew motion about the body 13 of the bit 10. In still other embodiments, the movement may be even more complex. For example, the body 13 and the arms 17 and/or the b lades 19 ma y have locking notched or toothed surfaces therebetween to prevent the arms 17 and/or the blades 19 from sliding with respect to the body 13, such that the arms 17 and/or the blades 19 move away from the body 13, slide, or shift, along the axis 15, and then move back toward the body 13. In any case, a longitudinal axial relationship between the roller cone cutting elements 25 and the fixed cutting elements 31 may be adjusted, such that the roller cone cutting elements 25 are in the primary cutting position, with the fixed cutting elements 31 in the secondary cutting position, or vice versa.
H; In this manner, the drill bit 11 of the present invention may be matched to the formation type being excavated. It should be understood that the primary cutting position is slightly deeper in the borehole than the secondary cutting position. This adjustment, or relative position/movement, may vary depending on many factors, such as bit or BHA design or application and/or the formation. In one embodiment, there may be approximately one eighth inch difference between the primary cutting position and the secondary cutting position. In other embodiments, this difference, adjustment, or movement, may be between one and two hundredths of an inch. In still other embodiments, this difference, adjustment, or movement, may be between zv three thousandths of an inch and one quarter inch. Finally, in some embodiments, the bit 10 may accommodate more than one eighth of an inch of relative movement.
For example, as shown in FIG. 3, the arms 17 may be extended such than the roller cone cutting elements 25 extend beyond, or are deeper than, a cutting 25 depth 51 of the fixed cutting elements 31 mounted on the blades 19. In the configuration shown in FIG. 3, the roller cone cutting elements 25 are in the primary cutting position, with the fixed cutting elements 31 in the secondary cutting position. Alternatively, as shown in FIG. 4, the arms 17 may be retracted such than the roller cone cutting elements 25 do not extend to, or :M are shallower than, the cutting depth 51 of the fixed cutting elements 31 mounted on the blades 19. In the configuration, shown in FIG. 4, the fixed cutting elements 31 are in the primary cutting position, with the roller cone cutting elements 25 in the secondary cutting position.
Such adjustment may be accomplished manually or automatically, at the surface or with the bit 11 in the borehole. This adjustment may be accomplished while actively drilling during a pause in drilling. For example, the bit 10 may be lifted off the More specifically, as shown in FIG. 5 and FIG.
6, in some embodiments, one or more sensors 61 provide some indication of the formation type being excavated by the bit 11 and a processor 65 controls the longitudinal axial relationship between the roller cone cutting elements 25, the fixed cutting elements 31, and/or the bit body 13 based on the indication.
For example, as shown in FIG. 5, the sensors 61 may sense a relatively soft formation type and provide an indication of the formation type to the processor 65. The processor 65 may decide to place the fixed cutting elements 31 in the primary cutting position and/or place the roller cone cutting elements 25 in the secondary cutting position. To do so, in some embodiments, the processor 65 triggers one or more actuators 67, causing the actuators 67 to retract the arms 17, thereby placing the roller cone cutting elements 25 in the secondary cutting position and the fixed cutting elements 31 in the primary cutting position.
20 Alternatively, as shown in FIG. 6, the sensor 61 may sense a relatively hard formation type and provide an indication of the formation type to the processor 65. The processor 65 may decide to place the roller cone cutting elements 25 in the primary cutting position and/or place the fixed cutting elements 31 in the secondary cutting position. To do so, in some embodiments, the processor 65 triggers the actuators 67, causing the actuators 67 to extend the arms 17, thereby placing the roller cone cutting elements 25 in the primary cutting position and the fixed cutting elements 31 in the secondary cutting position.
In this manner, the bit 11 of the present invention may exchange the fixed cutting elements 31 and the roller cone cutting elements 25 between the primary cutting position and the secondary cutting position. In other words, the longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters may be adjusted in this manner. This exchange, or adjustment, may occur many times during excavation of a single borehole.
Furthermore, this exchange, or adjustment, may be accomplished automatically, with or without intervention from an operator or external systems. Therefore, the sensor 61, the processor 65, and/or the actuators 67 s may be internal to, or integral with, the bit 11. Alternatively, the sensor 61, the processor 65, and/or the actuators 67 may be external to the bit 11. For example, the sensors 61 and/or the processor 65 may be mounted within the bit body 13, in a shank of the bit 11, in a sub behind or above the bit 11, or be part of a measurement or logging while drilling (MWD) tool or a near bit resistivity tool. In one embodiment, the sensors 61 are placed as close to the cutting elements 25,31, or bit face, as possible in order to provide the formation type change indication as quickly as possible. However, sensors 61 in the bit shank and/or elsewhere in the BHA may provide the formation type indication soon enough for efficient operation, while keeping the sensors 61 I protected.
The sensor(s) 61 may be gamma ray, resistivity, sonic, or other downhole real time sensors used to recognize formation changes and/or the current formation type being drilled. The formation type indication, formation type determination, and/or' and indication of the relative positions of the fixed N cutting elements 31 and the roller cone cutting elements 25 may be communicated to the surface. A operator at the surface may review this data and determine whether the positions need to be exchanged and communicate a command to the processor 65 and/or directly trigger the actuators 67. The actuators 67 may be hydraulic, electrical, and/or electromechanical. For 2E example, the actuator(s) 67 may comprise a small downhole motor to compress or relax one or more spring loaded hydraulic pistons.
Other and further embodiments utilizing one or more aspects of the inventions described above can be devised without departing from the spirit of Applicant's invention. For example, while the roller cone support arm 17 has o been shown to move with respect to the longitudinal axis 15 of the bit body 11, the blades 19 may move with respect to the longitudinal axis 15 of the bit body 11 in other embodiments. In other words, the roller cone support arm 17 and/or the blades 19 may slide with respect to the longitudinal axis 15 of the bit body 11. Thus, the roller cone cutting elements 25 and/or fixed cutting elements 31 may slide with respect to the other and/or the longitudinal axis of the bit body 11. In some embodiments, only a portion of one or more blade(s) 19, or a select group of the cutters 25,31, may be moved to effectuate the change between primary and secondary cutting structures. The bit 10 may also include one or more locking lugs, or similar structure to prevent movement of the arms 17 and/or blades 19 with respect to the body 13. In this case, the bit 10 may include additional actuators 67 to engage/disengage the lugs. Alternatively, the actuators 67 may be configured to engage/disengage the lugs after/before moving the arms 17 and/or blades 19. In some embodiments, the roller cone cutting elements 25 and/or fixed cutting elements 31 may be placed in a neutral position, such as that shown in FIG. 1 and FIG. 2, as well as the primary and secondary positions shown in FIG. 3 and FIG. 4.
Additionally, rather than being embedded within the bit body 13, as shown, the sensor 61 and/or the processor 65 may be located elsewhere in the bottom hole assembly, drill string, and/or at the surface. Further, the various methods and embodiments of the present invention can be included in combination with each other to produce variations of the disclosed methods and embodiments. Discussion of singular elements can include plural elements and vice-versa.
The order of steps can occur in a variety of sequences unless otherwise specifically limited. The various steps described herein can be combined with other steps, interlineated with the stated steps, and/or split into multiple steps.
Similarly, elements have been described functionally and can be embodied as separate components or can be combined into components having multiple functions.
The inventions have been described in the context of preferred and other 3 embodiments and not every embodiment of the invention has been described.
Obvious modifications and alterations to the described embodiments are available to those of ordinary skill in the art. The disclosed and undisclosed embodiments are not intended to limit or restrict the scope or applicability of the invention conceived of by the Applicants, but rather, in conformity with the patent laws, Applicants intend to fully protect all such modifications and improvements that come within the scope or range of equivalent of the following claims.
Particular embodiments of the invention may be described below with reference to block diagrams and/or operational illustrations of methods. It will be understood that each block of the block diagrams and/or operational illustrations, and combinations of blocks in the block diagrams and/or operational illustrations, can be implemented by analog and/or digital hardware, and/or computer program instructions. Such computer program instructions may be provided to a processor of a general-purpose computer, special purpose computer, ASIC, and/or other programmable data processing system. The executed instructions may create structures and functions for implementing the actions specified in the block diagrams and/or operational illustrations. In some alternate implementations, the ii functions/actions/structures noted in the figures may occur out of the order noted in the block diagrams and/or operational illustrations. For example, two operations shown as occurring in succession, in fact, may be executed substantially concurrently or the operations may be executed in the reverse order, depending upon the functionality/acts/structure involved.
i Computer programs for use with or by the embodiments disclosed herein may be written in an object oriented programming language, conventional procedural programming language, or lower-level code, such as assembly language and/or microcode. The program may be executed entirely on a single processor and/or across multiple processors, as a stand-alone software F package or as part of another software package.
Applicants have created an earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of cutters 30 and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to move essentially parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position. The bit may include one or more sensors to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication.
FIG. 1 is an illustration of a hybrid bit.11 that incorporates both rolling cones and fixed polycrystalline diamond compact (PDC) cutters mounted on dual cutting structures, similar to those shown in U.S. Patent No. 4,343,371 and U.S. Patent Application Publication No. 20080296068, both of which are incorporated herein by specific reference. More specifically, referring also to FIG. 2, the bit 11 comprises a bit body 13 having a longitudinal axis 15 that defines an axial center of the bit body 13. A plurality of roller cone support arms 17 extend from the bit body 13 in the longitudinal axial direction. The bit body 13 also has a plurality of blades 19 that extend in the longitudinal axial direction. The number of each of arms 17 and blades 19 is at least one but may be more than two.
Roller cones 21 are mounted to respective ones of the arms 17. A plurality of roller cone cutting inserts or cutters 25 are mounted to the roller cones 21.
In this manner, the roller cone cutters 25 are rotatably mounted to the bit body 20 13. In addition, a plurality of fixed cutting elements 31, such as PDC
cutters, are mounted to the blades 19. Examples of roller cone cutting elements 25 and fixed cutting elements 31 include tungsten carbide inserts, cutters made of super hard material such as polycrystalline diamond, and others known to those skilled in the art.
<:s FIG. 1 and FIG. 2 show both the roller cone cutting elements 25 and fixed cutting elements 31 in a neutral position or relationship with regard to the longitudinal axis 15. In this position, the roller cone cutting elements 25 and fixed cutting elements 31 overlap and complement each other.
However, certain formation types favor the roller cone cutting elements 25 3: over the fixed cutting elements 31, or vice versa. For example, the roller cone cutting elements 25 are often better suited to dense rock formations, whereas the fixed cutting elements 31 may be better suited to softer or more homogeneous formations. Therefore, it is best to match the drill bit type to the formation type the bit 11. is expected to encounter. To further complicate matters, the drill bit 11 may encounter many different formation types while excavating a single well or borehole.
c Therefore, the drill bit 11 of the present invention is preferably adjustable, such that either the roller cone cutting elements 25 or the fixed cutting elements 31 may be primary, with the other being secondary. In other words, the drill bit 11 of the present invention is preferably adjustable, such that either the roller cone cutting elements 25 may be in a primary cutting position, with W the fixed cutting elements 31 in a secondary cutting position, and vice versa.
The present invention's ability to exchange the roller cone cutting elements and the fixed cutting elements 31 between the primary cutting position and the secondary cutting position ensures that the formation is drilled, or excavated, as efficiently as possible with the least amount of wear on the bit 10. This IS ability to vary which elements 25,31 are primary and secondary may also improve the steerability of the bit 10 and bottom hole assembly (BHA) in varying formations.
In one embodiment, this adjustability is provided by mounting the roller cone cutting elements 25 and/or the fixed cutting elements 31 on the bit body 13 in such a manner as to allow them to be moved, or shifted, essentially parallel to the longitudinal axis 15 of the bit 11. In another embodiment, this adjustability is provided by mounting the arms 17 and/or the blades 19 on the bit body 13 in such a manner as to allow them to be moved essentially parallel to the longitudinal axis 15 of the bit 11. In one embodiment, the movement is '.s essentially a linear shifting, or sliding, of the arms 17 and/or the blades 19 along the bit body 13, such as through the use of a track, rail, channel, or groove system. However, other forms of movement may be used and the movement may involve more than simple displacement along the longitudinal axis 15 of the bit 11. For example, the arms 17 and/or the blades 19 may be 317 spirally, or helically, mounted on the bit body 13, such that the movement is a corkscrew motion about the body 13 of the bit 10. In still other embodiments, the movement may be even more complex. For example, the body 13 and the arms 17 and/or the b lades 19 ma y have locking notched or toothed surfaces therebetween to prevent the arms 17 and/or the blades 19 from sliding with respect to the body 13, such that the arms 17 and/or the blades 19 move away from the body 13, slide, or shift, along the axis 15, and then move back toward the body 13. In any case, a longitudinal axial relationship between the roller cone cutting elements 25 and the fixed cutting elements 31 may be adjusted, such that the roller cone cutting elements 25 are in the primary cutting position, with the fixed cutting elements 31 in the secondary cutting position, or vice versa.
H; In this manner, the drill bit 11 of the present invention may be matched to the formation type being excavated. It should be understood that the primary cutting position is slightly deeper in the borehole than the secondary cutting position. This adjustment, or relative position/movement, may vary depending on many factors, such as bit or BHA design or application and/or the formation. In one embodiment, there may be approximately one eighth inch difference between the primary cutting position and the secondary cutting position. In other embodiments, this difference, adjustment, or movement, may be between one and two hundredths of an inch. In still other embodiments, this difference, adjustment, or movement, may be between zv three thousandths of an inch and one quarter inch. Finally, in some embodiments, the bit 10 may accommodate more than one eighth of an inch of relative movement.
For example, as shown in FIG. 3, the arms 17 may be extended such than the roller cone cutting elements 25 extend beyond, or are deeper than, a cutting 25 depth 51 of the fixed cutting elements 31 mounted on the blades 19. In the configuration shown in FIG. 3, the roller cone cutting elements 25 are in the primary cutting position, with the fixed cutting elements 31 in the secondary cutting position. Alternatively, as shown in FIG. 4, the arms 17 may be retracted such than the roller cone cutting elements 25 do not extend to, or :M are shallower than, the cutting depth 51 of the fixed cutting elements 31 mounted on the blades 19. In the configuration, shown in FIG. 4, the fixed cutting elements 31 are in the primary cutting position, with the roller cone cutting elements 25 in the secondary cutting position.
Such adjustment may be accomplished manually or automatically, at the surface or with the bit 11 in the borehole. This adjustment may be accomplished while actively drilling during a pause in drilling. For example, the bit 10 may be lifted off the More specifically, as shown in FIG. 5 and FIG.
6, in some embodiments, one or more sensors 61 provide some indication of the formation type being excavated by the bit 11 and a processor 65 controls the longitudinal axial relationship between the roller cone cutting elements 25, the fixed cutting elements 31, and/or the bit body 13 based on the indication.
For example, as shown in FIG. 5, the sensors 61 may sense a relatively soft formation type and provide an indication of the formation type to the processor 65. The processor 65 may decide to place the fixed cutting elements 31 in the primary cutting position and/or place the roller cone cutting elements 25 in the secondary cutting position. To do so, in some embodiments, the processor 65 triggers one or more actuators 67, causing the actuators 67 to retract the arms 17, thereby placing the roller cone cutting elements 25 in the secondary cutting position and the fixed cutting elements 31 in the primary cutting position.
20 Alternatively, as shown in FIG. 6, the sensor 61 may sense a relatively hard formation type and provide an indication of the formation type to the processor 65. The processor 65 may decide to place the roller cone cutting elements 25 in the primary cutting position and/or place the fixed cutting elements 31 in the secondary cutting position. To do so, in some embodiments, the processor 65 triggers the actuators 67, causing the actuators 67 to extend the arms 17, thereby placing the roller cone cutting elements 25 in the primary cutting position and the fixed cutting elements 31 in the secondary cutting position.
In this manner, the bit 11 of the present invention may exchange the fixed cutting elements 31 and the roller cone cutting elements 25 between the primary cutting position and the secondary cutting position. In other words, the longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters may be adjusted in this manner. This exchange, or adjustment, may occur many times during excavation of a single borehole.
Furthermore, this exchange, or adjustment, may be accomplished automatically, with or without intervention from an operator or external systems. Therefore, the sensor 61, the processor 65, and/or the actuators 67 s may be internal to, or integral with, the bit 11. Alternatively, the sensor 61, the processor 65, and/or the actuators 67 may be external to the bit 11. For example, the sensors 61 and/or the processor 65 may be mounted within the bit body 13, in a shank of the bit 11, in a sub behind or above the bit 11, or be part of a measurement or logging while drilling (MWD) tool or a near bit resistivity tool. In one embodiment, the sensors 61 are placed as close to the cutting elements 25,31, or bit face, as possible in order to provide the formation type change indication as quickly as possible. However, sensors 61 in the bit shank and/or elsewhere in the BHA may provide the formation type indication soon enough for efficient operation, while keeping the sensors 61 I protected.
The sensor(s) 61 may be gamma ray, resistivity, sonic, or other downhole real time sensors used to recognize formation changes and/or the current formation type being drilled. The formation type indication, formation type determination, and/or' and indication of the relative positions of the fixed N cutting elements 31 and the roller cone cutting elements 25 may be communicated to the surface. A operator at the surface may review this data and determine whether the positions need to be exchanged and communicate a command to the processor 65 and/or directly trigger the actuators 67. The actuators 67 may be hydraulic, electrical, and/or electromechanical. For 2E example, the actuator(s) 67 may comprise a small downhole motor to compress or relax one or more spring loaded hydraulic pistons.
Other and further embodiments utilizing one or more aspects of the inventions described above can be devised without departing from the spirit of Applicant's invention. For example, while the roller cone support arm 17 has o been shown to move with respect to the longitudinal axis 15 of the bit body 11, the blades 19 may move with respect to the longitudinal axis 15 of the bit body 11 in other embodiments. In other words, the roller cone support arm 17 and/or the blades 19 may slide with respect to the longitudinal axis 15 of the bit body 11. Thus, the roller cone cutting elements 25 and/or fixed cutting elements 31 may slide with respect to the other and/or the longitudinal axis of the bit body 11. In some embodiments, only a portion of one or more blade(s) 19, or a select group of the cutters 25,31, may be moved to effectuate the change between primary and secondary cutting structures. The bit 10 may also include one or more locking lugs, or similar structure to prevent movement of the arms 17 and/or blades 19 with respect to the body 13. In this case, the bit 10 may include additional actuators 67 to engage/disengage the lugs. Alternatively, the actuators 67 may be configured to engage/disengage the lugs after/before moving the arms 17 and/or blades 19. In some embodiments, the roller cone cutting elements 25 and/or fixed cutting elements 31 may be placed in a neutral position, such as that shown in FIG. 1 and FIG. 2, as well as the primary and secondary positions shown in FIG. 3 and FIG. 4.
Additionally, rather than being embedded within the bit body 13, as shown, the sensor 61 and/or the processor 65 may be located elsewhere in the bottom hole assembly, drill string, and/or at the surface. Further, the various methods and embodiments of the present invention can be included in combination with each other to produce variations of the disclosed methods and embodiments. Discussion of singular elements can include plural elements and vice-versa.
The order of steps can occur in a variety of sequences unless otherwise specifically limited. The various steps described herein can be combined with other steps, interlineated with the stated steps, and/or split into multiple steps.
Similarly, elements have been described functionally and can be embodied as separate components or can be combined into components having multiple functions.
The inventions have been described in the context of preferred and other 3 embodiments and not every embodiment of the invention has been described.
Obvious modifications and alterations to the described embodiments are available to those of ordinary skill in the art. The disclosed and undisclosed embodiments are not intended to limit or restrict the scope or applicability of the invention conceived of by the Applicants, but rather, in conformity with the patent laws, Applicants intend to fully protect all such modifications and improvements that come within the scope or range of equivalent of the following claims.
Claims (16)
1 An earth boring drill bit comprising:
a bit body having a longitudinal axis along a path of the bit;
at least one support arm extending axially downwardly from the bit body in the longitudinal direction;
at least one fixed blade that extend in the longitudinal direction downwardly from the bit body;
a first plurality of fixed cutting elements mounted to the at least one fixed blade;
and a second plurality of rolling cutters rotatably mounted to a respective one of the support arms; and a plurality of roller-cone cutting elements on the rolling cutters;
wherein a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters is adjustable longitudinally parallel to the longitudinal axis of the bit.
a bit body having a longitudinal axis along a path of the bit;
at least one support arm extending axially downwardly from the bit body in the longitudinal direction;
at least one fixed blade that extend in the longitudinal direction downwardly from the bit body;
a first plurality of fixed cutting elements mounted to the at least one fixed blade;
and a second plurality of rolling cutters rotatably mounted to a respective one of the support arms; and a plurality of roller-cone cutting elements on the rolling cutters;
wherein a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters is adjustable longitudinally parallel to the longitudinal axis of the bit.
2. The bit as set forth in claim 1, wherein the first plurality of cutters are mounted to the body in such a manner as to allow them to move along the longitudinal axis.
3. The bit as set forth in claim 1, wherein the second plurality of cutters are mounted to the body in such a manner as to allow them to move along the longitudinal axis.
4. The bit as set forth in claim 1, wherein the longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position.
5. The bit as set forth in claim 1, further including a sensor providing an indication of a formation type being excavated by the bit and a processor controlling the longitudinal axial relationship based on the indication.
6. The bit as set forth in claim 5, wherein the processor causes the first plurality of cutters to shift parallel to the longitudinal axis based on the indication.
7. The bit as set forth in claim 5, wherein the processor causes the second plurality of cutters to shift parallel to the longitudinal axis based on the indication.
8. The bit as set forth in claim 5, wherein the processor adjusts the longitudinal axial relationship to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position based on the indication.
9. An earth boring drill bit assembly comprising:
a bit body having a longitudinal axis along a path of the bit;
a first plurality of cutters mounted to the body;
a second plurality of cutters rotatably mounted to the body;
a sensor providing an indication of a formation type adjacent the body; and a processor controlling a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters based on the indication.
a bit body having a longitudinal axis along a path of the bit;
a first plurality of cutters mounted to the body;
a second plurality of cutters rotatably mounted to the body;
a sensor providing an indication of a formation type adjacent the body; and a processor controlling a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters based on the indication.
10. The bit assembly as set forth in claim 9, wherein the processor triggers a plurality of actuators to cause the first plurality of cutters to shift parallel to the longitudinal axis based on the indication.
11. The bit assembly as set forth in claim 9, wherein the processor triggers a plurality of actuators to cause the second plurality of cutters to shift parallel to the longitudinal axis based on the indication.
12. The bit assembly as set forth in claim 9, wherein the processor triggers a plurality of actuators to cause adjust the longitudinal axial relationship to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position based on the indication.
13. A method of drilling a borehole in an earth formation, the method comprising the steps of:
receiving an indication of a formation type adjacent a drill bit from a sensor located within the borehole; and triggering an actuator to adjust a longitudinal axial relationship between a PDC
cutter and a roller cone cutter based on the indication.
receiving an indication of a formation type adjacent a drill bit from a sensor located within the borehole; and triggering an actuator to adjust a longitudinal axial relationship between a PDC
cutter and a roller cone cutter based on the indication.
14. The method as set forth in claim 13, wherein the triggering step comprises exchanging a plurality of PDC cutters and a plurality of roller cone cutters between a primary cutting position and a secondary cutting position.
15. The method as set forth in claim 13, wherein the triggering step comprises shifting the PDC cutter parallel to a longitudinal axis of the bit.
16. The method as set forth in claim 13, wherein the triggering step comprises shifting the roller cone cutter parallel to a longitudinal axis of the bit.
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US12/431,570 | 2009-04-28 | ||
PCT/US2010/032511 WO2010129253A2 (en) | 2009-04-28 | 2010-04-27 | Adaptive control concept for hybrid pdc/roller cone bits |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106255797A (en) * | 2014-06-09 | 2016-12-21 | 哈里伯顿能源服务公司 | There is the Mixed drilling bit of gear wheel and wheel disc |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9574405B2 (en) | 2005-09-21 | 2017-02-21 | Smith International, Inc. | Hybrid disc bit with optimized PDC cutter placement |
US8678111B2 (en) | 2007-11-16 | 2014-03-25 | Baker Hughes Incorporated | Hybrid drill bit and design method |
US8141664B2 (en) * | 2009-03-03 | 2012-03-27 | Baker Hughes Incorporated | Hybrid drill bit with high bearing pin angles |
US8459378B2 (en) * | 2009-05-13 | 2013-06-11 | Baker Hughes Incorporated | Hybrid drill bit |
US8672060B2 (en) * | 2009-07-31 | 2014-03-18 | Smith International, Inc. | High shear roller cone drill bits |
WO2011035051A2 (en) | 2009-09-16 | 2011-03-24 | Baker Hughes Incorporated | External, divorced pdc bearing assemblies for hybrid drill bits |
US8757291B2 (en) | 2010-04-28 | 2014-06-24 | Baker Hughes Incorporated | At-bit evaluation of formation parameters and drilling parameters |
US8746367B2 (en) | 2010-04-28 | 2014-06-10 | Baker Hughes Incorporated | Apparatus and methods for detecting performance data in an earth-boring drilling tool |
MX340468B (en) | 2010-06-29 | 2016-07-08 | Baker Hughes Incorporated * | Drill bits with anti-tracking features. |
SG192650A1 (en) | 2011-02-11 | 2013-09-30 | Baker Hughes Inc | System and method for leg retention on hybrid bits |
US9782857B2 (en) | 2011-02-11 | 2017-10-10 | Baker Hughes Incorporated | Hybrid drill bit having increased service life |
ITTO20110913A1 (en) | 2011-10-13 | 2013-04-14 | Trevi Spa | PROCEDURE FOR THE CONSTRUCTION OF LARGE DIAMETER POLES AND EXCAVATION TOOL |
EP2780532B1 (en) | 2011-11-15 | 2020-01-08 | Baker Hughes, a GE company, LLC | Hybrid drill bits having increased drilling efficiency |
US8881848B2 (en) | 2012-05-07 | 2014-11-11 | Ulterra Drilling Technologies, L.P. | Fixed cutter drill bit with rotating cutter disc |
US9267329B2 (en) * | 2013-03-12 | 2016-02-23 | Baker Hughes Incorporated | Drill bit with extension elements in hydraulic communications to adjust loads thereon |
US9255450B2 (en) * | 2013-04-17 | 2016-02-09 | Baker Hughes Incorporated | Drill bit with self-adjusting pads |
US10107039B2 (en) | 2014-05-23 | 2018-10-23 | Baker Hughes Incorporated | Hybrid bit with mechanically attached roller cone elements |
US10907418B2 (en) | 2014-07-31 | 2021-02-02 | Halliburton Energy Services, Inc. | Force self-balanced drill bit |
US11428050B2 (en) | 2014-10-20 | 2022-08-30 | Baker Hughes Holdings Llc | Reverse circulation hybrid bit |
US10557311B2 (en) | 2015-07-17 | 2020-02-11 | Halliburton Energy Services, Inc. | Hybrid drill bit with counter-rotation cutters in center |
US10041305B2 (en) | 2015-09-11 | 2018-08-07 | Baker Hughes Incorporated | Actively controlled self-adjusting bits and related systems and methods |
US10273759B2 (en) | 2015-12-17 | 2019-04-30 | Baker Hughes Incorporated | Self-adjusting earth-boring tools and related systems and methods |
CN106121541A (en) * | 2016-08-27 | 2016-11-16 | 天津立林钻头有限公司 | Composite drill bit |
CN107143287A (en) * | 2017-07-14 | 2017-09-08 | 宜昌神达石油机械有限公司 | Yangtze Cambrian system shale gas exploitation combined bitses during one kind is applicable |
US10633929B2 (en) | 2017-07-28 | 2020-04-28 | Baker Hughes, A Ge Company, Llc | Self-adjusting earth-boring tools and related systems |
GB2569330B (en) | 2017-12-13 | 2021-01-06 | Nov Downhole Eurasia Ltd | Downhole devices and associated apparatus and methods |
US11261669B1 (en) | 2021-04-19 | 2022-03-01 | Saudi Arabian Oil Company | Device, assembly, and method for releasing cutters on the fly |
Family Cites Families (200)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126066A (en) | 1964-03-24 | Rotary drill bit with wiper blade | ||
USRE23416E (en) | 1951-10-16 | Drill | ||
US930759A (en) | 1908-11-20 | 1909-08-10 | Howard R Hughes | Drill. |
US1519641A (en) * | 1920-10-12 | 1924-12-16 | Walter N Thompson | Rotary underreamer |
US1821474A (en) * | 1927-12-05 | 1931-09-01 | Sullivan Machinery Co | Boring tool |
US1874066A (en) | 1930-04-28 | 1932-08-30 | Floyd L Scott | Combination rolling and scraping cutter drill |
US1932487A (en) | 1930-07-11 | 1933-10-31 | Hughes Tool Co | Combination scraping and rolling cutter drill |
US1879127A (en) | 1930-07-21 | 1932-09-27 | Hughes Tool Co | Combination rolling and scraping cutter bit |
US2030722A (en) | 1933-12-01 | 1936-02-11 | Hughes Tool Co | Cutter assembly |
US2198849A (en) | 1938-06-09 | 1940-04-30 | Reuben L Waxler | Drill |
US2216894A (en) | 1939-10-12 | 1940-10-08 | Reed Roller Bit Co | Rock bit |
US2244537A (en) | 1939-12-22 | 1941-06-03 | Archer W Kammerer | Well drilling bit |
US2320136A (en) | 1940-09-30 | 1943-05-25 | Archer W Kammerer | Well drilling bit |
US2297157A (en) | 1940-11-16 | 1942-09-29 | Mcclinton John | Drill |
US2320137A (en) | 1941-08-12 | 1943-05-25 | Archer W Kammerer | Rotary drill bit |
US2380112A (en) | 1942-01-02 | 1945-07-10 | Kinnear Clarence Wellington | Drill |
US2719026A (en) | 1952-04-28 | 1955-09-27 | Reed Roller Bit Co | Earth boring drill |
US2815932A (en) * | 1956-02-29 | 1957-12-10 | Norman E Wolfram | Retractable rock drill bit apparatus |
US2994389A (en) * | 1957-06-07 | 1961-08-01 | Le Bus Royalty Company | Combined drilling and reaming apparatus |
US3066749A (en) | 1959-08-10 | 1962-12-04 | Jersey Prod Res Co | Combination drill bit |
US3010708A (en) | 1960-04-11 | 1961-11-28 | Goodman Mfg Co | Rotary mining head and core breaker therefor |
US3055443A (en) | 1960-05-31 | 1962-09-25 | Jersey Prod Res Co | Drill bit |
US3239431A (en) | 1963-02-21 | 1966-03-08 | Knapp Seth Raymond | Rotary well bits |
US3174564A (en) | 1963-06-10 | 1965-03-23 | Hughes Tool Co | Combination core bit |
US3269469A (en) | 1964-01-10 | 1966-08-30 | Hughes Tool Co | Solid head rotary-percussion bit with rolling cutters |
US3387673A (en) * | 1966-03-15 | 1968-06-11 | Ingersoll Rand Co | Rotary percussion gang drill |
US3424258A (en) | 1966-11-16 | 1969-01-28 | Japan Petroleum Dev Corp | Rotary bit for use in rotary drilling |
DE1301784B (en) | 1968-01-27 | 1969-08-28 | Deutsche Erdoel Ag | Combination bit for plastic rock |
US3583501A (en) * | 1969-03-06 | 1971-06-08 | Mission Mfg Co | Rock bit with powered gauge cutter |
USRE28625E (en) | 1970-08-03 | 1975-11-25 | Rock drill with increased bearing life | |
US4006788A (en) | 1975-06-11 | 1977-02-08 | Smith International, Inc. | Diamond cutter rock bit with penetration limiting |
JPS5382601A (en) | 1976-12-28 | 1978-07-21 | Tokiwa Kogyo Kk | Rotary grinding type excavation drill head |
US4140189A (en) | 1977-06-06 | 1979-02-20 | Smith International, Inc. | Rock bit with diamond reamer to maintain gage |
US4270812A (en) | 1977-07-08 | 1981-06-02 | Thomas Robert D | Drill bit bearing |
SU891882A1 (en) * | 1977-07-23 | 1981-12-23 | Среднеазиатский Научно-Исследовательский Институт Геологии И Минерального Сырья | Combination earth-drilling bit |
SU876947A1 (en) * | 1978-06-01 | 1981-10-30 | Кузбасский Политехнический Институт | Combination rotary-bit and blade drilling tool |
US4285409A (en) | 1979-06-28 | 1981-08-25 | Smith International, Inc. | Two cone bit with extended diamond cutters |
US4527637A (en) | 1981-05-11 | 1985-07-09 | Bodine Albert G | Cycloidal drill bit |
US4293048A (en) | 1980-01-25 | 1981-10-06 | Smith International, Inc. | Jet dual bit |
US4343371A (en) | 1980-04-28 | 1982-08-10 | Smith International, Inc. | Hybrid rock bit |
US4369849A (en) | 1980-06-05 | 1983-01-25 | Reed Rock Bit Company | Large diameter oil well drilling bit |
US4359112A (en) | 1980-06-19 | 1982-11-16 | Smith International, Inc. | Hybrid diamond insert platform locator and retention method |
US4320808A (en) | 1980-06-24 | 1982-03-23 | Garrett Wylie P | Rotary drill bit |
US4386669A (en) * | 1980-12-08 | 1983-06-07 | Evans Robert F | Drill bit with yielding support and force applying structure for abrasion cutting elements |
US4410284A (en) | 1982-04-22 | 1983-10-18 | Smith International, Inc. | Composite floating element thrust bearing |
US4444281A (en) | 1983-03-30 | 1984-04-24 | Reed Rock Bit Company | Combination drag and roller cutter drill bit |
US5028177A (en) | 1984-03-26 | 1991-07-02 | Eastman Christensen Company | Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks |
US4726718A (en) | 1984-03-26 | 1988-02-23 | Eastman Christensen Co. | Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks |
AU3946885A (en) | 1984-03-26 | 1985-10-03 | Norton Christensen Inc. | Cutting element using polycrystalline diamond disks |
US4572306A (en) | 1984-12-07 | 1986-02-25 | Dorosz Dennis D E | Journal bushing drill bit construction |
US4738322A (en) | 1984-12-21 | 1988-04-19 | Smith International Inc. | Polycrystalline diamond bearing system for a roller cone rock bit |
US4657091A (en) | 1985-05-06 | 1987-04-14 | Robert Higdon | Drill bits with cone retention means |
SU1331988A1 (en) | 1985-07-12 | 1987-08-23 | И.И. Барабашкин, И. В. Воевидко и В. М. Ивасив | Well calibrator |
US4664705A (en) | 1985-07-30 | 1987-05-12 | Sii Megadiamond, Inc. | Infiltrated thermally stable polycrystalline diamond |
GB8528894D0 (en) | 1985-11-23 | 1986-01-02 | Nl Petroleum Prod | Rotary drill bits |
US4690228A (en) | 1986-03-14 | 1987-09-01 | Eastman Christensen Company | Changeover bit for extended life, varied formations and steady wear |
US5030276A (en) | 1986-10-20 | 1991-07-09 | Norton Company | Low pressure bonding of PCD bodies and method |
US4943488A (en) | 1986-10-20 | 1990-07-24 | Norton Company | Low pressure bonding of PCD bodies and method for drill bits and the like |
US5116568A (en) | 1986-10-20 | 1992-05-26 | Norton Company | Method for low pressure bonding of PCD bodies |
US4727942A (en) | 1986-11-05 | 1988-03-01 | Hughes Tool Company | Compensator for earth boring bits |
US4765205A (en) | 1987-06-01 | 1988-08-23 | Bob Higdon | Method of assembling drill bits and product assembled thereby |
CA1270479A (en) | 1987-12-14 | 1990-06-19 | Jerome Labrosse | Tubing bit opener |
USRE37450E1 (en) | 1988-06-27 | 2001-11-20 | The Charles Machine Works, Inc. | Directional multi-blade boring head |
US5027912A (en) | 1988-07-06 | 1991-07-02 | Baker Hughes Incorporated | Drill bit having improved cutter configuration |
US4874047A (en) | 1988-07-21 | 1989-10-17 | Cummins Engine Company, Inc. | Method and apparatus for retaining roller cone of drill bit |
US4875532A (en) | 1988-09-19 | 1989-10-24 | Dresser Industries, Inc. | Roller drill bit having radial-thrust pilot bushing incorporating anti-galling material |
US4892159A (en) | 1988-11-29 | 1990-01-09 | Exxon Production Research Company | Kerf-cutting apparatus and method for improved drilling rates |
NO169735C (en) | 1989-01-26 | 1992-07-29 | Geir Tandberg | COMBINATION DRILL KRONE |
GB8907618D0 (en) | 1989-04-05 | 1989-05-17 | Morrison Pumps Sa | Drilling |
US4932484A (en) | 1989-04-10 | 1990-06-12 | Amoco Corporation | Whirl resistant bit |
US4953641A (en) | 1989-04-27 | 1990-09-04 | Hughes Tool Company | Two cone bit with non-opposite cones |
US4936398A (en) | 1989-07-07 | 1990-06-26 | Cledisc International B.V. | Rotary drilling device |
US5049164A (en) | 1990-01-05 | 1991-09-17 | Norton Company | Multilayer coated abrasive element for bonding to a backing |
US4991671A (en) | 1990-03-13 | 1991-02-12 | Camco International Inc. | Means for mounting a roller cutter on a drill bit |
US4984643A (en) | 1990-03-21 | 1991-01-15 | Hughes Tool Company | Anti-balling earth boring bit |
US5224560A (en) | 1990-10-30 | 1993-07-06 | Modular Engineering | Modular drill bit |
US5145017A (en) | 1991-01-07 | 1992-09-08 | Exxon Production Research Company | Kerf-cutting apparatus for increased drilling rates |
US5941322A (en) | 1991-10-21 | 1999-08-24 | The Charles Machine Works, Inc. | Directional boring head with blade assembly |
US5238074A (en) | 1992-01-06 | 1993-08-24 | Baker Hughes Incorporated | Mosaic diamond drag bit cutter having a nonuniform wear pattern |
US5346026A (en) | 1992-01-31 | 1994-09-13 | Baker Hughes Incorporated | Rolling cone bit with shear cutting gage |
US5287936A (en) | 1992-01-31 | 1994-02-22 | Baker Hughes Incorporated | Rolling cone bit with shear cutting gage |
US5467836A (en) | 1992-01-31 | 1995-11-21 | Baker Hughes Incorporated | Fixed cutter bit with shear cutting gage |
NO176528C (en) | 1992-02-17 | 1995-04-19 | Kverneland Klepp As | Device at drill bit |
EP0569663A1 (en) | 1992-05-15 | 1993-11-18 | Baker Hughes Incorporated | Improved anti-whirl drill bit |
US5558170A (en) | 1992-12-23 | 1996-09-24 | Baroid Technology, Inc. | Method and apparatus for improving drill bit stability |
US5289889A (en) | 1993-01-21 | 1994-03-01 | Marvin Gearhart | Roller cone core bit with spiral stabilizers |
US5560440A (en) * | 1993-02-12 | 1996-10-01 | Baker Hughes Incorporated | Bit for subterranean drilling fabricated from separately-formed major components |
US5361859A (en) * | 1993-02-12 | 1994-11-08 | Baker Hughes Incorporated | Expandable gage bit for drilling and method of drilling |
US5355559A (en) | 1993-04-26 | 1994-10-18 | Amerock Corporation | Hinge for inset doors |
US5429200A (en) | 1994-03-31 | 1995-07-04 | Dresser Industries, Inc. | Rotary drill bit with improved cutter |
US5452771A (en) | 1994-03-31 | 1995-09-26 | Dresser Industries, Inc. | Rotary drill bit with improved cutter and seal protection |
US5472057A (en) * | 1994-04-11 | 1995-12-05 | Atlantic Richfield Company | Drilling with casing and retrievable bit-motor assembly |
US5606895A (en) | 1994-08-08 | 1997-03-04 | Dresser Industries, Inc. | Method for manufacture and rebuild a rotary drill bit |
US5439068B1 (en) | 1994-08-08 | 1997-01-14 | Dresser Ind | Modular rotary drill bit |
US5513715A (en) | 1994-08-31 | 1996-05-07 | Dresser Industries, Inc. | Flat seal for a roller cone rock bit |
US5553681A (en) | 1994-12-07 | 1996-09-10 | Dresser Industries, Inc. | Rotary cone drill bit with angled ramps |
US5755297A (en) | 1994-12-07 | 1998-05-26 | Dresser Industries, Inc. | Rotary cone drill bit with integral stabilizers |
US5547033A (en) | 1994-12-07 | 1996-08-20 | Dresser Industries, Inc. | Rotary cone drill bit and method for enhanced lifting of fluids and cuttings |
US5593231A (en) | 1995-01-17 | 1997-01-14 | Dresser Industries, Inc. | Hydrodynamic bearing |
US5996713A (en) | 1995-01-26 | 1999-12-07 | Baker Hughes Incorporated | Rolling cutter bit with improved rotational stabilization |
US5570750A (en) | 1995-04-20 | 1996-11-05 | Dresser Industries, Inc. | Rotary drill bit with improved shirttail and seal protection |
US5641029A (en) | 1995-06-06 | 1997-06-24 | Dresser Industries, Inc. | Rotary cone drill bit modular arm |
US5695019A (en) | 1995-08-23 | 1997-12-09 | Dresser Industries, Inc. | Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts |
USD384084S (en) | 1995-09-12 | 1997-09-23 | Dresser Industries, Inc. | Rotary cone drill bit |
US5695018A (en) | 1995-09-13 | 1997-12-09 | Baker Hughes Incorporated | Earth-boring bit with negative offset and inverted gage cutting elements |
US5904213A (en) | 1995-10-10 | 1999-05-18 | Camco International (Uk) Limited | Rotary drill bits |
US5862871A (en) | 1996-02-20 | 1999-01-26 | Ccore Technology & Licensing Limited, A Texas Limited Partnership | Axial-vortex jet drilling system and method |
DE19780282B3 (en) | 1996-03-01 | 2012-09-06 | Tiger 19 Partners, Ltd. | Self-supporting expansion drill |
US5642942A (en) | 1996-03-26 | 1997-07-01 | Smith International, Inc. | Thrust plugs for rotary cone air bits |
US6390210B1 (en) | 1996-04-10 | 2002-05-21 | Smith International, Inc. | Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty |
US6116357A (en) | 1996-09-09 | 2000-09-12 | Smith International, Inc. | Rock drill bit with back-reaming protection |
US5904212A (en) | 1996-11-12 | 1999-05-18 | Dresser Industries, Inc. | Gauge face inlay for bit hardfacing |
BE1010802A3 (en) | 1996-12-16 | 1999-02-02 | Dresser Ind | Drilling head. |
BE1010801A3 (en) | 1996-12-16 | 1999-02-02 | Dresser Ind | Drilling tool and / or core. |
GB9708428D0 (en) | 1997-04-26 | 1997-06-18 | Camco Int Uk Ltd | Improvements in or relating to rotary drill bits |
US5944125A (en) | 1997-06-19 | 1999-08-31 | Varel International, Inc. | Rock bit with improved thrust face |
US6095265A (en) | 1997-08-15 | 2000-08-01 | Smith International, Inc. | Impregnated drill bits with adaptive matrix |
US6173797B1 (en) | 1997-09-08 | 2001-01-16 | Baker Hughes Incorporated | Rotary drill bits for directional drilling employing movable cutters and tandem gage pad arrangement with active cutting elements and having up-drill capability |
WO1999037879A1 (en) | 1998-01-26 | 1999-07-29 | Dresser Industries, Inc. | Rotary cone drill bit with enhanced journal bushing |
US6220374B1 (en) | 1998-01-26 | 2001-04-24 | Dresser Industries, Inc. | Rotary cone drill bit with enhanced thrust bearing flange |
US6568490B1 (en) | 1998-02-23 | 2003-05-27 | Halliburton Energy Services, Inc. | Method and apparatus for fabricating rotary cone drill bits |
US6109375A (en) | 1998-02-23 | 2000-08-29 | Dresser Industries, Inc. | Method and apparatus for fabricating rotary cone drill bits |
EP1066447B1 (en) | 1998-03-26 | 2004-08-18 | Halliburton Energy Services, Inc. | Rotary cone drill bit with improved bearing system |
JP2000080878A (en) | 1998-06-30 | 2000-03-21 | Kyoei Kogyo Kk | Drilling head usable for both hard and soft strata |
US6206116B1 (en) | 1998-07-13 | 2001-03-27 | Dresser Industries, Inc. | Rotary cone drill bit with machined cutting structure |
US20040045742A1 (en) | 2001-04-10 | 2004-03-11 | Halliburton Energy Services, Inc. | Force-balanced roller-cone bits, systems, drilling methods, and design methods |
US6241036B1 (en) | 1998-09-16 | 2001-06-05 | Baker Hughes Incorporated | Reinforced abrasive-impregnated cutting elements, drill bits including same |
US6345673B1 (en) | 1998-11-20 | 2002-02-12 | Smith International, Inc. | High offset bits with super-abrasive cutters |
US6401844B1 (en) | 1998-12-03 | 2002-06-11 | Baker Hughes Incorporated | Cutter with complex superabrasive geometry and drill bits so equipped |
US6279671B1 (en) | 1999-03-01 | 2001-08-28 | Amiya K. Panigrahi | Roller cone bit with improved seal gland design |
BE1012545A3 (en) | 1999-03-09 | 2000-12-05 | Security Dbs | Widener borehole. |
US6527066B1 (en) | 1999-05-14 | 2003-03-04 | Allen Kent Rives | Hole opener with multisized, replaceable arms and cutters |
CA2314114C (en) | 1999-07-19 | 2007-04-10 | Smith International, Inc. | Improved rock drill bit with neck protection |
US6684967B2 (en) | 1999-08-05 | 2004-02-03 | Smith International, Inc. | Side cutting gage pad improving stabilization and borehole integrity |
US6460631B2 (en) | 1999-08-26 | 2002-10-08 | Baker Hughes Incorporated | Drill bits with reduced exposure of cutters |
US6533051B1 (en) | 1999-09-07 | 2003-03-18 | Smith International, Inc. | Roller cone drill bit shale diverter |
US6386302B1 (en) | 1999-09-09 | 2002-05-14 | Smith International, Inc. | Polycrystaline diamond compact insert reaming tool |
SE524046C2 (en) | 1999-09-24 | 2004-06-22 | Varel Internat Inc | Rotary drill bit |
US6510906B1 (en) | 1999-11-29 | 2003-01-28 | Baker Hughes Incorporated | Impregnated bit with PDC cutters in cone area |
US6843333B2 (en) | 1999-11-29 | 2005-01-18 | Baker Hughes Incorporated | Impregnated rotary drag bit |
JP3513698B2 (en) | 1999-12-03 | 2004-03-31 | 飛島建設株式会社 | Drilling head |
US8082134B2 (en) * | 2000-03-13 | 2011-12-20 | Smith International, Inc. | Techniques for modeling/simulating, designing optimizing, and displaying hybrid drill bits |
US6439326B1 (en) | 2000-04-10 | 2002-08-27 | Smith International, Inc. | Centered-leg roller cone drill bit |
US6688410B1 (en) | 2000-06-07 | 2004-02-10 | Smith International, Inc. | Hydro-lifter rock bit with PDC inserts |
US6405811B1 (en) | 2000-09-18 | 2002-06-18 | Baker Hughes Corporation | Solid lubricant for air cooled drill bit and method of drilling |
US6592985B2 (en) | 2000-09-20 | 2003-07-15 | Camco International (Uk) Limited | Polycrystalline diamond partially depleted of catalyzing material |
DE60140617D1 (en) | 2000-09-20 | 2010-01-07 | Camco Int Uk Ltd | POLYCRYSTALLINE DIAMOND WITH A SURFACE ENRICHED ON CATALYST MATERIAL |
US6408958B1 (en) | 2000-10-23 | 2002-06-25 | Baker Hughes Incorporated | Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped |
US7137460B2 (en) | 2001-02-13 | 2006-11-21 | Smith International, Inc. | Back reaming tool |
GB2372060B (en) | 2001-02-13 | 2004-01-07 | Smith International | Back reaming tool |
DE60203295T2 (en) | 2001-07-06 | 2005-08-11 | Shell Internationale Research Maatschappij B.V. | DRILLING TOOL FOR DRILLING DRILLING |
GB2395735B (en) | 2001-07-23 | 2005-03-09 | Shell Int Research | Injecting a fluid into a borehole ahead of the bit |
US6745858B1 (en) * | 2001-08-24 | 2004-06-08 | Rock Bit International | Adjustable earth boring device |
US6601661B2 (en) | 2001-09-17 | 2003-08-05 | Baker Hughes Incorporated | Secondary cutting structure |
US6742607B2 (en) | 2002-05-28 | 2004-06-01 | Smith International, Inc. | Fixed blade fixed cutter hole opener |
US6902014B1 (en) | 2002-08-01 | 2005-06-07 | Rock Bit L.P. | Roller cone bi-center bit |
US6883623B2 (en) | 2002-10-09 | 2005-04-26 | Baker Hughes Incorporated | Earth boring apparatus and method offering improved gage trimmer protection |
US20060032677A1 (en) | 2003-02-12 | 2006-02-16 | Smith International, Inc. | Novel bits and cutting structures |
US7234550B2 (en) | 2003-02-12 | 2007-06-26 | Smith International, Inc. | Bits and cutting structures |
US6904984B1 (en) | 2003-06-20 | 2005-06-14 | Rock Bit L.P. | Stepped polycrystalline diamond compact insert |
US7011170B2 (en) | 2003-10-22 | 2006-03-14 | Baker Hughes Incorporated | Increased projection for compacts of a rolling cone drill bit |
US7070011B2 (en) | 2003-11-17 | 2006-07-04 | Baker Hughes Incorporated | Steel body rotary drill bits including support elements affixed to the bit body at least partially defining cutter pocket recesses |
US7395882B2 (en) | 2004-02-19 | 2008-07-08 | Baker Hughes Incorporated | Casing and liner drilling bits |
GB2408735B (en) | 2003-12-05 | 2009-01-28 | Smith International | Thermally-stable polycrystalline diamond materials and compacts |
US20050178587A1 (en) | 2004-01-23 | 2005-08-18 | Witman George B.Iv | Cutting structure for single roller cone drill bit |
US7647993B2 (en) | 2004-05-06 | 2010-01-19 | Smith International, Inc. | Thermally stable diamond bonded materials and compacts |
ITMI20051579A1 (en) | 2004-08-16 | 2006-02-17 | Halliburton Energy Serv Inc | DRILLING TIPS WITH ROTATING CONES WITH OPTIMIZED BEARING STRUCTURES |
US7754333B2 (en) | 2004-09-21 | 2010-07-13 | Smith International, Inc. | Thermally stable diamond polycrystalline diamond constructions |
GB0423597D0 (en) | 2004-10-23 | 2004-11-24 | Reedhycalog Uk Ltd | Dual-edge working surfaces for polycrystalline diamond cutting elements |
US7350601B2 (en) | 2005-01-25 | 2008-04-01 | Smith International, Inc. | Cutting elements formed from ultra hard materials having an enhanced construction |
US7435478B2 (en) | 2005-01-27 | 2008-10-14 | Smith International, Inc. | Cutting structures |
CA2535387C (en) | 2005-02-08 | 2013-05-07 | Smith International, Inc. | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same |
US7350568B2 (en) | 2005-02-09 | 2008-04-01 | Halliburton Energy Services, Inc. | Logging a well |
US20060196699A1 (en) * | 2005-03-04 | 2006-09-07 | Roy Estes | Modular kerfing drill bit |
US7472764B2 (en) | 2005-03-25 | 2009-01-06 | Baker Hughes Incorporated | Rotary drill bit shank, rotary drill bits so equipped, and methods of manufacture |
US7487849B2 (en) | 2005-05-16 | 2009-02-10 | Radtke Robert P | Thermally stable diamond brazing |
US7493973B2 (en) | 2005-05-26 | 2009-02-24 | Smith International, Inc. | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance |
US7377341B2 (en) | 2005-05-26 | 2008-05-27 | Smith International, Inc. | Thermally stable ultra-hard material compact construction |
US20060278442A1 (en) | 2005-06-13 | 2006-12-14 | Kristensen Henry L | Drill bit |
US7462003B2 (en) | 2005-08-03 | 2008-12-09 | Smith International, Inc. | Polycrystalline diamond composite constructions comprising thermally stable diamond volume |
US7416036B2 (en) | 2005-08-12 | 2008-08-26 | Baker Hughes Incorporated | Latchable reaming bit |
US9574405B2 (en) | 2005-09-21 | 2017-02-21 | Smith International, Inc. | Hybrid disc bit with optimized PDC cutter placement |
US7726421B2 (en) | 2005-10-12 | 2010-06-01 | Smith International, Inc. | Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength |
US7152702B1 (en) | 2005-11-04 | 2006-12-26 | Smith International, Inc. | Modular system for a back reamer and method |
US7270196B2 (en) * | 2005-11-21 | 2007-09-18 | Hall David R | Drill bit assembly |
US7484576B2 (en) | 2006-03-23 | 2009-02-03 | Hall David R | Jack element in communication with an electric motor and or generator |
US7398837B2 (en) * | 2005-11-21 | 2008-07-15 | Hall David R | Drill bit assembly with a logging device |
US7392862B2 (en) | 2006-01-06 | 2008-07-01 | Baker Hughes Incorporated | Seal insert ring for roller cone bits |
US7628234B2 (en) | 2006-02-09 | 2009-12-08 | Smith International, Inc. | Thermally stable ultra-hard polycrystalline materials and compacts |
US7387177B2 (en) | 2006-10-18 | 2008-06-17 | Baker Hughes Incorporated | Bearing insert sleeve for roller cone bit |
US8034136B2 (en) | 2006-11-20 | 2011-10-11 | Us Synthetic Corporation | Methods of fabricating superabrasive articles |
US7841426B2 (en) | 2007-04-05 | 2010-11-30 | Baker Hughes Incorporated | Hybrid drill bit with fixed cutters as the sole cutting elements in the axial center of the drill bit |
US7845435B2 (en) | 2007-04-05 | 2010-12-07 | Baker Hughes Incorporated | Hybrid drill bit and method of drilling |
US7836975B2 (en) * | 2007-10-24 | 2010-11-23 | Schlumberger Technology Corporation | Morphable bit |
US8678111B2 (en) | 2007-11-16 | 2014-03-25 | Baker Hughes Incorporated | Hybrid drill bit and design method |
US20090172172A1 (en) | 2007-12-21 | 2009-07-02 | Erik Lambert Graham | Systems and methods for enabling peer-to-peer communication among visitors to a common website |
SA108290832B1 (en) | 2007-12-21 | 2012-06-05 | بيكر هوغيس انكوربوريتد | Reamer with Stabilizer Arms for Use in A Wellbore |
US7938204B2 (en) | 2007-12-21 | 2011-05-10 | Baker Hughes Incorporated | Reamer with improved hydraulics for use in a wellbore |
US8672060B2 (en) | 2009-07-31 | 2014-03-18 | Smith International, Inc. | High shear roller cone drill bits |
WO2011084944A2 (en) | 2010-01-05 | 2011-07-14 | Smith International, Inc. | High-shear roller cone and pdc hybrid bit |
-
2009
- 2009-04-28 US US12/431,570 patent/US8056651B2/en active Active
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2010
- 2010-04-27 EP EP10772502.0A patent/EP2425087B1/en active Active
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- 2010-04-27 PL PL10772502T patent/PL2425087T3/en unknown
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- 2010-04-27 BR BRPI1011904A patent/BRPI1011904B1/en active IP Right Grant
- 2010-04-27 RU RU2011147983/03A patent/RU2541668C2/en active
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106255797A (en) * | 2014-06-09 | 2016-12-21 | 哈里伯顿能源服务公司 | There is the Mixed drilling bit of gear wheel and wheel disc |
Also Published As
Publication number | Publication date |
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CA2760286C (en) | 2014-07-08 |
RU2541668C2 (en) | 2015-02-20 |
EP2425087A4 (en) | 2014-06-11 |
WO2010129253A4 (en) | 2011-04-28 |
PL2425087T3 (en) | 2018-01-31 |
US8056651B2 (en) | 2011-11-15 |
MX2011011425A (en) | 2012-06-12 |
WO2010129253A3 (en) | 2011-03-10 |
RU2011147983A (en) | 2013-06-10 |
EP2425087A2 (en) | 2012-03-07 |
BRPI1011904B1 (en) | 2020-02-04 |
EP2425087B1 (en) | 2017-07-26 |
BRPI1011904A2 (en) | 2016-04-12 |
WO2010129253A2 (en) | 2010-11-11 |
US20100270085A1 (en) | 2010-10-28 |
SA110310328B1 (en) | 2014-02-16 |
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