WO2003008754A1 - Steerable rotary drill bit assembly with pilot bit - Google Patents
Steerable rotary drill bit assembly with pilot bit Download PDFInfo
- Publication number
- WO2003008754A1 WO2003008754A1 PCT/EP2002/007958 EP0207958W WO03008754A1 WO 2003008754 A1 WO2003008754 A1 WO 2003008754A1 EP 0207958 W EP0207958 W EP 0207958W WO 03008754 A1 WO03008754 A1 WO 03008754A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bit
- pilot
- axis
- drill
- face
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 241000125205 Anethum Species 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004044 response Effects 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
-
- 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
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub
Definitions
- the present invention relates to a rotary drill bit assembly, which is suitable for directionally drilling a borehole into an underground formation.
- USA patent No. 4,836,301 discloses a system and method for directional drilling.
- the drill bit is connected via a universal pivoting mechanism to the lower end of the drill string.
- the drill bit can be tilted so that the longitudinal axis of the drill bit can form a small deviation angle with the axis of the lower part of the drill string.
- the known system further comprises a steering means for rotating the drill bit in an orbital mode with respect to the lower part of the drill string.
- the steering means thereto comprises a flow deflector for providing hydrodynamical force in order to rotate the tilted drill bit azimuthally with respect to the lower part of the drill string as needed.
- the drill string with the drill bit at its end is set to rotate, and the drill bit is tilted and counter-rotated in an orbital mode relative to the lower part of the drill string such that the axis of the drill bit remains geostationary.
- the known system has the disadvantage that it requires large tilting forces on the bit, and that a complex but robust mechanism is needed for the universal pivoting mechanism in order to withstand the tilting and drilling forces at the same time.
- the present invention provides a rotary drill bit assembly suitable for directionally drilling a borehole into an underground formation, the drill bit assembly comprising a bit body extending along a central longitudinal bit-body axis, the bit body having a bit- body face at its front end and being attachable to a drill string at its opposite end, wherein an annular portion of the bit-body face is provided with one or more chip-making elements; a pilot bit extending along a central longitudinal pilot-bit axis, the pilot bit being partly arranged within the bit body and projecting out of the central portion of the bit-body face, the pilot bit having a pilot-bit face at its front end provided with one or more chip-making elements; a joint means arranged to pivotably connect the pilot bit to the bit body so that the bit-body axis and the pilot-bit axis can form a variable diversion angle; and a steering means arranged to pivot the pilot bit in order to steer, during normal operation, the direction of drilling.
- the bit body, pilot bit and joint means are comprised in a drill bit according to the invention.
- a method for directional drilling of a borehole into an underground earth formation using a rotary drill bit attached to the lower end of a drill string, the rotary drill bit comprising a bit body extending along a bit-body axis coaxial with the lower part of the drill string, and having a bit-body face at its front end, wherein the annular portion of the bit-body face is provided with one or more chip-making elements; and a pilot bit extending along a pilot-bit axis and projecting out of the central portion of the bit-body face, the pilot bit having a pilot-bit face at its front end provided with one or more chip-making elements; which pilot bit is pivotably arranged with respect to the bit body so that the bit-body axis and the pilot-bit axis can form a certain diversion angle; wherein the method comprises setting the pilot bit along the pilot-bit axis at a selected diversion angle with respect to the bit
- a tilted pilot borehole section can be drilled, wherein the depth is approximately equal to the distance between pilot-bit face and bit-body face. Due to the smaller size of the pilot bit, a smaller tilting force is needed for the pilot bit as compared to tilting the whole drill bit directly.
- the pilot borehole section serves as a guide for the cutting action of the bit body.
- the pilot bit in the pilot borehole section exerts a guiding force on the bit body, and thereby guides or levers the bit body including the attached drill string into the desired direction.
- the guiding force on the bit body acts near the bit-body face, thereby rather pulling than pushing the bit body into the desired direction, which is a fundamental difference to the directional drilling systems and methods known in the art.
- drilling torque to the pilot bit can be provided independently from the drilling torque provided from the drill string to the bit body.
- the pilot bit is driven by the drilling torque provided by the drill string.
- the joint means can suitably be arranged so as to transmit drilling torque from the drill string, which is fixedly connected to the bit body, to the pilot bit.
- the joint means torque-locks the pilot bit to the bit body, so that one revolution of the bit body about the bit-body axis results in one revolution of the pilot bit about the pilot-bit axis.
- a gearing mechanism can be arranged so that the pilot bit rotates with a different angular speed than the bit body.
- the pilot bit can also be driven from a different source not directly coupled to the rotary action of the drill string, such as a mud motor.
- the pilot bit is suitably pivoted such that the pilot-bit axis performs an orbital motion with respect to the bit-body axis, in opposite direction and with the same angular velocity of the rotation of the bit body.
- the joint means is a spherical joint means, which allows the pilot bit to rotate azimuthally about the bit-body axis while the pilot-bit axis is pivoted at a non-zero diversion angle.
- FIG. 1 shows schematically an example of a rotary drill bit assembly 1 for directionally drilling a borehole into an underground formation, according to the present invention.
- the drill bit assembly 1 comprises a drill bit 2 having a drill bit body 3, which is fixedly connected to the lower end of a tubular drill string 5.
- the bit body 3 extends from the drill string 5 along a central longitudinal bit-body axis 8 and has a bit-body face 10 at its front end.
- the bit-body face 10 is provided with chip-making elements in the form of polycrystalline diamond cutters 12, which are arranged around a central opening 14 in the bit-body face 10 and thereby forming an annular portion of the bit-body face 10.
- the cutters are suitably designed to give ease of side cutting.
- the bit body 3 is provided with a central longitudinal passageway 16 providing fluid communication between the interior of the drill string 5 ⁇ and the opening 14 of the bit body 3.
- the passageway 16 at the side of the opening 14 is provided with a sleeve 18, which is connected to the bit body 3.
- fluid nozzles 19 are provided, which are in fluid communication with the passageway 16.
- the drill bit 2 further comprises a pilot bit 20, which is partly arranged within the bit body 3 and projects out of the central portion 14 of the bit-body face 10.
- the pilot bit 20 has a pilot- bit face 25, which is provided with chip-making elements in the form of polycrystalline diamond cutters 27.
- the pilot bit is also provided with fluid nozzles 28, which are in fluid communication with the passageway 16.
- the pilot bit 20 further has a gauge side 29.
- the pilot bit 20 is connected to the bit body 3 through a spherical joint means arranged at the front end of the sleeve 18, and shown schematically at reference numeral 30.
- the spherical joint means 30 allows pivoting of the pilot bit 20 with respect to the bit body 3, so that the central longitudinal pilot-bit axis 32 and the bit-body axis 8 can form a non-zero diversion angle.
- the pilot bit is pivoted about an axis (not shown) perpendicular to the paper plane, and the diversion angle is indicated by the symbol ⁇ .
- the spherical joint means 30 also allows rotation of the pilot bit 20 about the bit-body axis 8 while the pilot- bit axis is pivoted by a non-zero diversion angle.
- the spherical joint means 30 further is arranged so as to torque-lock the pilot bit 20 to the bit body 3, so that one revolution of the bit body 3 about the bit-body axis 8 results in one revolution of the pilot bit 20 about the pilot-bit axis 32.
- the spherical joint means can suitably be designed based on a joint known in the art as universal joint.
- Well-known types of universal joints are for example Hooke, Bendix-Weiss, Rzeppa, Tracta, or double Cardan joints.
- the advantage of the universal joint is that no separate driving source and drill string for the pilot bit is needed, and that the pilot bit and the bit body rotate jointly with the same average angular velocity so that abrasive forces at the joint means can be kept to a minimum.
- the drill bit assembly 1 further comprises a steering means for steering the drill bit 2, which steering means is generally referred to by reference numeral 40.
- the steering means 40 is arranged to pivot the pilot bit 20 in order to steer the drill bit 2.
- the steering means comprises a steering lever 42 extending from a contact arrangement 45 with the joint means 30 to a lever point 47 in the passageway 16 of the bit body 3.
- the contact arrangement 45 and the lever point 47 are located along the pilot-bit axis 32.
- the contact means 45 has the form of a bearing (not shown) , which allows rotation of the pilot bit 20 about the pilot-bit axis 32 relative to the steering lever 42. By moving the lever point 47 the pilot bit can be pivoted, and due to the contact means in form of a bearing the orientation of the pilot bit can be steered independently of the rotation of the pilot bit.
- the steering lever 42 In order that the pilot bit 20 can drill into a certain direction, the steering lever 42 needs to be oriented, and the lever point 47 is suitably set to remain geostationary during rotation of the bit body 3. Positioning is done using a positioning lever 52 of the steering means, which positioning lever 52 is connected at one end to the lever point 47. For compensating the rotation of the bit body 3 a rotation means in the form of step motor 55 is provided, which is connected to the other end of the positioning lever 52. The housing of the step motor 55 is arranged in a fixed orientation with the drill string 5 and the bit body 3.
- the lever point 47 can be kept at a geostationary location by rotating the positioning lever 52 relative to the bit body 3 about the bit-body axis 8, in opposite direction and with the same angular velocity as the rotating bit body 3, and while keeping the offset of the lever point 47 from the bit- body axis 8 constant.
- the steering means further comprises a directional sensor package 58 for measuring data to determine the actual drilling trajectory of the drill bit; a surface communications package 60 including a mud pulser; and a steering control package 62 for controlling the positioning and rotation of the steering lever 42 in response to data from the directional sensor package 60, to data about the angular velocity of the drill string, and/or to commands received from the surface.
- the sleeve 18 with the spherical joint means 30 and the attached pilot bit 20 forms a closure element for the passageway 16. As shown in Figure 1 this closure element prevents access from the interior of the drill string 5 to the exterior of the bit body in the borehole via opening 14.
- the sleeve 18 can be removably attached to the bit body 3, for example by a latching mechanism (not shown) , which is arranged so that the closure element can be selectively connected to and disconnected from the bit body. When the closure element has been removed, the exterior of the bit body in the borehole can be accessed from inside the drill string through the opening 14. Normal operation of the embodiment shown in Figure 1 will now be discussed.
- the pilot-bit axis 32 is aligned with the bit- body axis 8, and to this end the lever point 47 is moved to a location on the bit-body axis 8.
- the pilot bit and bit body rotate jointly due to the torque lock of the spherical joint 30, and the drill bit will perform like a conventional drill bit of similar overall geometry. In particular there is no need in this situation to rotate the steering lever 42 by the step motor 55 relative to the bit body 3.
- the pilot-bit axis 32 is set to deviate from the bit-body axis 8 by positioning the lever point 47 away from the bit-body axis.
- the steering control package appropriately steers the positioning lever 52, so that the steering lever 42 has the desired orientation in space (diversion angle and azimuthal orientation) .
- the diversion angle between bit-body axis and pilot-bit axis can for example be set between 1 and 5 degrees, but larger or smaller values are also possible.
- Drilling torque is provided to the bit body 3 and via the spherical joint means 30 at the same time to the pilot bit 20, so that the pilot bit progresses into the formation as guided by steering lever.
- the step motor 55 is activated to counteract the rotation of the bit body by rotating the positioning lever 52, so that the steering lever 42 remains substantially geostationary during at least one rotation of the bit body 3.
- the pilot bit 20 forms a pilot borehole section that deviates from the bit-body axis 8, and the bit body 3 is consequently levered towards the direction of the pilot borehole section by a guiding force exerted by the pilot bit via the joint means.
- the gauge side 29 of the pilot bit 20, which is subjected to abrasive forces from contact with the formation in the pilot borehole section, is suitably designed to minimize abrasion.
- the gauge side 29 can for example be manufactured from diamond or can include PDC gauge protection elements.
- the actual overall direction of drilling is monitored by the directional sensor package 58.
- Data obtained from the directional sensor package and/or commands received from the surface via the surface communications package 60 are processed by the steering control package 62.
- the steering control package then controls the steering lever to match the desired and actual drilling trajectories.
- the direction of drilling can be controlled by varying the orientation of the pilot bit (steering lever) in space (magnitude of the diversion angle and azimuthal orientation) , suitably on a time scale longer than one revolution of the bit body.
- the steering means can be arranged to set the magnitude steplessly, or to switch between a predetermined non-zero diversion angle and zero diversion angle.
- the predetermined diversion angle can be a maximum diversion angle of the joint means.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60206276T DE60206276T2 (en) | 2001-07-16 | 2002-07-16 | STEERING TURNING DRILLING DEVICE WITH PILOT DRILL |
EP02764714A EP1407110B1 (en) | 2001-07-16 | 2002-07-16 | Steerable rotary drill bit assembly with pilot bit |
CA2453353A CA2453353C (en) | 2001-07-16 | 2002-07-16 | Steerable rotary drill bit assembly with pilot bit |
US10/483,922 US7207398B2 (en) | 2001-07-16 | 2002-07-16 | Steerable rotary drill bit assembly with pilot bit |
NO20040173A NO20040173L (en) | 2001-07-16 | 2004-01-15 | Controllable rotatable drill bit assembly with guide drill bits |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01306106 | 2001-07-16 | ||
EP01306106.4 | 2001-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003008754A1 true WO2003008754A1 (en) | 2003-01-30 |
Family
ID=8182110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/007958 WO2003008754A1 (en) | 2001-07-16 | 2002-07-16 | Steerable rotary drill bit assembly with pilot bit |
Country Status (9)
Country | Link |
---|---|
US (1) | US7207398B2 (en) |
EP (1) | EP1407110B1 (en) |
CN (1) | CN100347397C (en) |
AR (1) | AR034780A1 (en) |
CA (1) | CA2453353C (en) |
DE (1) | DE60206276T2 (en) |
NO (1) | NO20040173L (en) |
RU (1) | RU2317396C2 (en) |
WO (1) | WO2003008754A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004104360A2 (en) * | 2003-05-21 | 2004-12-02 | Shell Internationale Research Maatschappij B.V. | Drill bit and drilling system with under -reamer- and stabilisation-section |
US7231979B2 (en) | 2003-01-15 | 2007-06-19 | Baker Hughes Incorporated | Short radius whipstock system |
WO2008076625A2 (en) | 2006-12-15 | 2008-06-26 | Hall David R | System for steering a drill string |
WO2010005881A1 (en) * | 2008-07-11 | 2010-01-14 | Schlumberger Holdings Limited | Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
GB2462966B (en) * | 2007-06-07 | 2012-10-10 | Nat Oilwell Varco Lp | Drilling apparatus with a pilot hole drilling assembly |
US8448721B2 (en) | 2007-12-19 | 2013-05-28 | Schlumberger Technology Corporation | Directional drilling system |
CN104114805A (en) * | 2012-02-17 | 2014-10-22 | 哈利伯顿能源服务公司 | Directional drilling systems |
US8936110B2 (en) | 2009-04-09 | 2015-01-20 | Nov Downhole Eurasia Limited | Under reamer |
US9074436B2 (en) | 2008-10-16 | 2015-07-07 | Schlumberger Technology Corporation | Methods for installing sensors in a borehole |
US9556677B2 (en) | 2012-02-17 | 2017-01-31 | Halliburton Energy Services, Inc. | Directional drilling systems |
US9689209B2 (en) | 2010-12-29 | 2017-06-27 | Nov Downhole Eurasia Limited | Large gauge concentric underreamer |
Families Citing this family (99)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004063522A1 (en) * | 2003-01-15 | 2004-07-29 | Shell Internationale Research Maatschappij B.V. | Wellstring assembly |
US7287604B2 (en) * | 2003-09-15 | 2007-10-30 | Baker Hughes Incorporated | Steerable bit assembly and methods |
AU2006301897A1 (en) * | 2005-10-11 | 2007-04-19 | Ronald George Minshull | Self actuating underreamer |
US8225883B2 (en) * | 2005-11-21 | 2012-07-24 | Schlumberger Technology Corporation | Downhole percussive tool with alternating pressure differentials |
US8297378B2 (en) | 2005-11-21 | 2012-10-30 | Schlumberger Technology Corporation | Turbine driven hammer that oscillates at a constant frequency |
US8360174B2 (en) * | 2006-03-23 | 2013-01-29 | Schlumberger Technology Corporation | Lead the bit rotary steerable tool |
US7549489B2 (en) | 2006-03-23 | 2009-06-23 | Hall David R | Jack element with a stop-off |
US8205688B2 (en) | 2005-11-21 | 2012-06-26 | Hall David R | Lead the bit rotary steerable system |
US7967082B2 (en) | 2005-11-21 | 2011-06-28 | Schlumberger Technology Corporation | Downhole mechanism |
US8297375B2 (en) | 2005-11-21 | 2012-10-30 | Schlumberger Technology Corporation | Downhole turbine |
US8528664B2 (en) | 2005-11-21 | 2013-09-10 | Schlumberger Technology Corporation | Downhole mechanism |
US7571780B2 (en) * | 2006-03-24 | 2009-08-11 | Hall David R | Jack element for a drill bit |
US7730972B2 (en) * | 2005-11-21 | 2010-06-08 | Schlumberger Technology Corporation | Downhole turbine |
US8316964B2 (en) | 2006-03-23 | 2012-11-27 | Schlumberger Technology Corporation | Drill bit transducer device |
US8522897B2 (en) * | 2005-11-21 | 2013-09-03 | Schlumberger Technology Corporation | Lead the bit rotary steerable tool |
US8130117B2 (en) | 2006-03-23 | 2012-03-06 | Schlumberger Technology Corporation | Drill bit with an electrically isolated transmitter |
US8408336B2 (en) | 2005-11-21 | 2013-04-02 | Schlumberger Technology Corporation | Flow guide actuation |
US7360610B2 (en) * | 2005-11-21 | 2008-04-22 | Hall David R | Drill bit assembly for directional drilling |
US7753144B2 (en) * | 2005-11-21 | 2010-07-13 | Schlumberger Technology Corporation | Drill bit with a retained jack element |
US7506706B2 (en) * | 2005-11-21 | 2009-03-24 | Hall David R | Retaining element for a jack element |
US7900720B2 (en) | 2006-01-18 | 2011-03-08 | Schlumberger Technology Corporation | Downhole drive shaft connection |
US7694756B2 (en) | 2006-03-23 | 2010-04-13 | Hall David R | Indenting member for a drill bit |
US8011457B2 (en) | 2006-03-23 | 2011-09-06 | Schlumberger Technology Corporation | Downhole hammer assembly |
USD620510S1 (en) | 2006-03-23 | 2010-07-27 | Schlumberger Technology Corporation | Drill bit |
US7661487B2 (en) | 2006-03-23 | 2010-02-16 | Hall David R | Downhole percussive tool with alternating pressure differentials |
US7637574B2 (en) | 2006-08-11 | 2009-12-29 | Hall David R | Pick assembly |
US8449040B2 (en) | 2006-08-11 | 2013-05-28 | David R. Hall | Shank for an attack tool |
US8590644B2 (en) | 2006-08-11 | 2013-11-26 | Schlumberger Technology Corporation | Downhole drill bit |
US7669674B2 (en) | 2006-08-11 | 2010-03-02 | Hall David R | Degradation assembly |
US8122980B2 (en) | 2007-06-22 | 2012-02-28 | Schlumberger Technology Corporation | Rotary drag bit with pointed cutting elements |
US20080035389A1 (en) | 2006-08-11 | 2008-02-14 | Hall David R | Roof Mining Drill Bit |
US9051795B2 (en) | 2006-08-11 | 2015-06-09 | Schlumberger Technology Corporation | Downhole drill bit |
US9145742B2 (en) | 2006-08-11 | 2015-09-29 | Schlumberger Technology Corporation | Pointed working ends on a drill bit |
US7871133B2 (en) | 2006-08-11 | 2011-01-18 | Schlumberger Technology Corporation | Locking fixture |
US8616305B2 (en) | 2006-08-11 | 2013-12-31 | Schlumberger Technology Corporation | Fixed bladed bit that shifts weight between an indenter and cutting elements |
US8596381B2 (en) | 2006-08-11 | 2013-12-03 | David R. Hall | Sensor on a formation engaging member of a drill bit |
US8622155B2 (en) | 2006-08-11 | 2014-01-07 | Schlumberger Technology Corporation | Pointed diamond working ends on a shear bit |
US8714285B2 (en) | 2006-08-11 | 2014-05-06 | Schlumberger Technology Corporation | Method for drilling with a fixed bladed bit |
US9316061B2 (en) | 2006-08-11 | 2016-04-19 | David R. Hall | High impact resistant degradation element |
US8567532B2 (en) | 2006-08-11 | 2013-10-29 | Schlumberger Technology Corporation | Cutting element attached to downhole fixed bladed bit at a positive rake angle |
US7886851B2 (en) * | 2006-08-11 | 2011-02-15 | Schlumberger Technology Corporation | Drill bit nozzle |
US8215420B2 (en) | 2006-08-11 | 2012-07-10 | Schlumberger Technology Corporation | Thermally stable pointed diamond with increased impact resistance |
US8240404B2 (en) | 2006-08-11 | 2012-08-14 | Hall David R | Roof bolt bit |
US8443915B2 (en) * | 2006-09-14 | 2013-05-21 | Schlumberger Technology Corporation | Through drillstring logging systems and methods |
US9068410B2 (en) | 2006-10-26 | 2015-06-30 | Schlumberger Technology Corporation | Dense diamond body |
US8960337B2 (en) | 2006-10-26 | 2015-02-24 | Schlumberger Technology Corporation | High impact resistant tool with an apex width between a first and second transitions |
US7954401B2 (en) | 2006-10-27 | 2011-06-07 | Schlumberger Technology Corporation | Method of assembling a drill bit with a jack element |
USD674422S1 (en) | 2007-02-12 | 2013-01-15 | Hall David R | Drill bit with a pointed cutting element and a shearing cutting element |
US8839888B2 (en) | 2010-04-23 | 2014-09-23 | Schlumberger Technology Corporation | Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements |
USD678368S1 (en) | 2007-02-12 | 2013-03-19 | David R. Hall | Drill bit with a pointed cutting element |
ATE486193T1 (en) * | 2007-04-12 | 2010-11-15 | Shell Int Research | DRILL BIT ARRANGEMENT AND METHOD FOR PERFORMING A BOREHOLE OPERATION |
US7866416B2 (en) | 2007-06-04 | 2011-01-11 | Schlumberger Technology Corporation | Clutch for a jack element |
US7967083B2 (en) | 2007-09-06 | 2011-06-28 | Schlumberger Technology Corporation | Sensor for determining a position of a jack element |
US7721826B2 (en) * | 2007-09-06 | 2010-05-25 | Schlumberger Technology Corporation | Downhole jack assembly sensor |
US8540037B2 (en) | 2008-04-30 | 2013-09-24 | Schlumberger Technology Corporation | Layered polycrystalline diamond |
CA2739664C (en) * | 2008-06-02 | 2014-12-16 | Thrubit B.V. | Drill bit and method for inserting, expanding, collapsing, and retrieving drill bit |
US7971662B2 (en) * | 2008-09-25 | 2011-07-05 | Baker Hughes Incorporated | Drill bit with adjustable steering pads |
US9915138B2 (en) | 2008-09-25 | 2018-03-13 | Baker Hughes, A Ge Company, Llc | Drill bit with hydraulically adjustable axial pad for controlling torsional fluctuations |
US8205686B2 (en) * | 2008-09-25 | 2012-06-26 | Baker Hughes Incorporated | Drill bit with adjustable axial pad for controlling torsional fluctuations |
US8061455B2 (en) * | 2009-02-26 | 2011-11-22 | Baker Hughes Incorporated | Drill bit with adjustable cutters |
US8701799B2 (en) | 2009-04-29 | 2014-04-22 | Schlumberger Technology Corporation | Drill bit cutter pocket restitution |
US8087479B2 (en) * | 2009-08-04 | 2012-01-03 | Baker Hughes Incorporated | Drill bit with an adjustable steering device |
US8307914B2 (en) * | 2009-09-09 | 2012-11-13 | Schlumberger Technology Corporation | Drill bits and methods of drilling curved boreholes |
CN101806196A (en) * | 2010-03-26 | 2010-08-18 | 毛杰 | Compound rotary drilling rig drilling mechanism |
US20110240377A1 (en) * | 2010-04-01 | 2011-10-06 | Hall David R | Drill Bit Jack Element with a Plurality of Inserts |
US8550190B2 (en) | 2010-04-01 | 2013-10-08 | David R. Hall | Inner bit disposed within an outer bit |
US8418784B2 (en) | 2010-05-11 | 2013-04-16 | David R. Hall | Central cutting region of a drilling head assembly |
US9080387B2 (en) * | 2010-08-03 | 2015-07-14 | Baker Hughes Incorporated | Directional wellbore control by pilot hole guidance |
US8960328B2 (en) * | 2010-08-31 | 2015-02-24 | Baker Hughes Incorporated | Drill bit with adjustable side force |
US8333254B2 (en) | 2010-10-01 | 2012-12-18 | Hall David R | Steering mechanism with a ring disposed about an outer diameter of a drill bit and method for drilling |
US8820440B2 (en) | 2010-10-01 | 2014-09-02 | David R. Hall | Drill bit steering assembly |
CN103061671B (en) * | 2011-10-24 | 2014-12-10 | 中国石油化工股份有限公司 | Underground anti-drag twisting reducer |
CN102561951A (en) * | 2012-01-14 | 2012-07-11 | 中国石油天然气集团公司 | Double-stage and double-speed well drilling tool |
US9441420B2 (en) * | 2012-04-09 | 2016-09-13 | Saudi Arabian Oil Company | System and method for forming a lateral wellbore |
CN102704843A (en) * | 2012-05-09 | 2012-10-03 | 中国石油天然气股份有限公司 | Efficient bit of pilot hole |
IN2014DN10334A (en) * | 2012-06-06 | 2015-08-07 | Baker Hughes Inc | |
US9695641B2 (en) * | 2012-10-25 | 2017-07-04 | National Oilwell DHT, L.P. | Drilling systems and fixed cutter bits with adjustable depth-of-cut to control torque-on-bit |
KR20160039208A (en) * | 2013-08-05 | 2016-04-08 | 지오넥스 오와이 | Method for steering a direction of a drilling device drilling a hole into the ground |
RU2016114163A (en) | 2013-11-14 | 2017-12-19 | Хэллибертон Энерджи Сервисиз, Инк. | METHOD AND DEVICE FOR DETERMINING THE LOCATION OF THE NEAREST WELL WITH REGARD TO THE AREA BEFORE THE DRILL BIT |
US9782840B2 (en) | 2014-07-01 | 2017-10-10 | James Edwin Funk | Safety drilling tool |
EP3656969B1 (en) * | 2014-12-29 | 2021-07-14 | Halliburton Energy Services, Inc. | Drilling assembly having a tilted or offset driveshaft |
US11261667B2 (en) * | 2015-03-24 | 2022-03-01 | Baker Hughes, A Ge Company, Llc | Self-adjusting directional drilling apparatus and methods for drilling directional wells |
CN105156039A (en) * | 2015-07-07 | 2015-12-16 | 西南石油大学 | Driving retractable combination drill bit |
WO2017004691A1 (en) * | 2015-07-09 | 2017-01-12 | Halliburton Energy Services, Inc. | Drilling apparatus with fixed and variable angular offsets |
CN105178863B (en) * | 2015-09-16 | 2018-03-27 | 胜利油田盛辉石油技术开发有限责任公司 | A kind of nonpetroleum drill bit |
CN105317377B (en) * | 2015-11-17 | 2017-08-04 | 中国石油大学(华东) | Center differential pressure type drill bit |
CN106812469A (en) * | 2015-11-27 | 2017-06-09 | 成都百施特金刚石钻头有限公司 | Diplocardia underreamer body of tool |
CA3013075A1 (en) | 2016-02-16 | 2017-08-24 | Extreme Rock Destruction LLC | Drilling machine |
WO2017172563A1 (en) | 2016-03-31 | 2017-10-05 | Schlumberger Technology Corporation | Equipment string communication and steering |
US10890030B2 (en) | 2016-12-28 | 2021-01-12 | Xr Lateral Llc | Method, apparatus by method, and apparatus of guidance positioning members for directional drilling |
US11255136B2 (en) | 2016-12-28 | 2022-02-22 | Xr Lateral Llc | Bottom hole assemblies for directional drilling |
CN106703701A (en) | 2017-01-20 | 2017-05-24 | 中国石油大学(华东) | Pulse impact producing mechanism and center differential pressure drill comprising same |
EP3434858B1 (en) | 2017-05-01 | 2022-09-21 | Vermeer Manufacturing Company | Dual rod directional drilling system |
WO2019014142A1 (en) | 2017-07-12 | 2019-01-17 | Extreme Rock Destruction, LLC | Laterally oriented cutting structures |
US11180962B2 (en) | 2018-11-26 | 2021-11-23 | Vermeer Manufacturing Company | Dual rod directional drilling system |
CN110671050B (en) * | 2019-09-29 | 2020-12-25 | 北京工业大学 | Directional rotary steering drilling tool |
US11795763B2 (en) | 2020-06-11 | 2023-10-24 | Schlumberger Technology Corporation | Downhole tools having radially extendable elements |
CN112593859A (en) * | 2020-11-08 | 2021-04-02 | 张新华 | Concentric double-shaft rotary type earth and stone square drilling and digging device for building construction |
CN113846972B (en) * | 2021-10-26 | 2023-08-11 | 国能神东煤炭集团有限责任公司 | Reaming device and reaming method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4446935A (en) * | 1979-03-28 | 1984-05-08 | Reed Tool Company (Delaware) | Intermittent high-drag oil well drilling bit |
US4974688A (en) * | 1989-07-11 | 1990-12-04 | Public Service Company Of Indiana, Inc. | Steerable earth boring device |
DE3927625A1 (en) * | 1989-08-22 | 1991-02-28 | Gerhard Bihler | Deep well diamond boring head - with high-speed central drill bit and slow-speed outer drill bit driven by moineau motor |
US5503236A (en) * | 1993-09-03 | 1996-04-02 | Baker Hughes Incorporated | Swivel/tilting bit crown for earth-boring drills |
DE19626589C1 (en) * | 1996-07-02 | 1998-02-12 | Wirth Co Kg Masch Bohr | Sinking boreholes in soft ground |
EP1008717A1 (en) * | 1998-12-11 | 2000-06-14 | Schlumberger Holdings Limited | Rotary steerable well drilling system utilizing sliding sleeve |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2018007A (en) * | 1933-12-19 | 1935-10-22 | William G Brewster | Sidetracking tool |
US2179010A (en) * | 1938-06-17 | 1939-11-07 | Martha H Wright | Well bit |
US2284580A (en) * | 1940-02-28 | 1942-05-26 | Archer W Kammerer | Well drilling bit |
US3052838A (en) * | 1957-09-23 | 1962-09-04 | Sun Oil Co | Bore hole logging apparatus |
US3112442A (en) * | 1960-02-19 | 1963-11-26 | Sun Oil Co | Bore hole logging apparatus having separate landing member means to position a recording instrument casing above a drill bit |
US3429387A (en) * | 1967-03-06 | 1969-02-25 | Cicero C Brown | Pump out drill bit |
US3700049A (en) * | 1970-10-02 | 1972-10-24 | Inst Francais Du Petrole | Device for connecting a drill bit to a drill string provided with a penetrometer |
SU1049647A1 (en) | 1982-02-10 | 1983-10-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Multistage drilling tool |
US4932005A (en) * | 1983-01-04 | 1990-06-05 | Birdwell J C | Fluid means for data transmission |
AU2907484A (en) | 1983-06-27 | 1985-01-03 | N L Industries Inc. | Drill stem logging system |
GB2190411B (en) * | 1986-05-16 | 1990-02-21 | Shell Int Research | Apparatus for directional drilling. |
BE1003502A6 (en) * | 1989-04-28 | 1992-04-07 | Smet Marc Jozef Maria | Steerable BOORMOL. |
US5103919A (en) * | 1990-10-04 | 1992-04-14 | Amoco Corporation | Method of determining the rotational orientation of a downhole tool |
US5244050A (en) * | 1992-04-06 | 1993-09-14 | Rock Bit International, Inc. | Rock bit with offset tool port |
CA2127476C (en) * | 1994-07-06 | 1999-12-07 | Daniel G. Pomerleau | Logging or measurement while tripping |
US6269891B1 (en) * | 1998-09-21 | 2001-08-07 | Shell Oil Company | Through-drill string conveyed logging system |
US6218446B1 (en) | 1999-01-11 | 2001-04-17 | Dymax Corporation | Radiation curable formulation for producing electrically conductive resinous material, method of use, and article produced |
-
2002
- 2002-07-15 AR ARP020102636A patent/AR034780A1/en unknown
- 2002-07-16 RU RU2004104367/03A patent/RU2317396C2/en not_active IP Right Cessation
- 2002-07-16 CN CNB028142098A patent/CN100347397C/en not_active Expired - Fee Related
- 2002-07-16 DE DE60206276T patent/DE60206276T2/en not_active Expired - Lifetime
- 2002-07-16 US US10/483,922 patent/US7207398B2/en not_active Expired - Lifetime
- 2002-07-16 EP EP02764714A patent/EP1407110B1/en not_active Expired - Fee Related
- 2002-07-16 WO PCT/EP2002/007958 patent/WO2003008754A1/en not_active Application Discontinuation
- 2002-07-16 CA CA2453353A patent/CA2453353C/en not_active Expired - Fee Related
-
2004
- 2004-01-15 NO NO20040173A patent/NO20040173L/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4446935A (en) * | 1979-03-28 | 1984-05-08 | Reed Tool Company (Delaware) | Intermittent high-drag oil well drilling bit |
US4974688A (en) * | 1989-07-11 | 1990-12-04 | Public Service Company Of Indiana, Inc. | Steerable earth boring device |
DE3927625A1 (en) * | 1989-08-22 | 1991-02-28 | Gerhard Bihler | Deep well diamond boring head - with high-speed central drill bit and slow-speed outer drill bit driven by moineau motor |
US5503236A (en) * | 1993-09-03 | 1996-04-02 | Baker Hughes Incorporated | Swivel/tilting bit crown for earth-boring drills |
DE19626589C1 (en) * | 1996-07-02 | 1998-02-12 | Wirth Co Kg Masch Bohr | Sinking boreholes in soft ground |
EP1008717A1 (en) * | 1998-12-11 | 2000-06-14 | Schlumberger Holdings Limited | Rotary steerable well drilling system utilizing sliding sleeve |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7231979B2 (en) | 2003-01-15 | 2007-06-19 | Baker Hughes Incorporated | Short radius whipstock system |
WO2004104360A3 (en) * | 2003-05-21 | 2005-01-06 | Shell Int Research | Drill bit and drilling system with under -reamer- and stabilisation-section |
EA007832B1 (en) * | 2003-05-21 | 2007-02-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Drill bit and system for drilling the borehole |
US7464774B2 (en) | 2003-05-21 | 2008-12-16 | Shell Oil Company | Drill bit and system for drilling a borehole |
CN1791732B (en) * | 2003-05-21 | 2010-09-08 | 国际壳牌研究有限公司 | Drill bit and drilling system with underreamer- and stabilization-section |
WO2004104360A2 (en) * | 2003-05-21 | 2004-12-02 | Shell Internationale Research Maatschappij B.V. | Drill bit and drilling system with under -reamer- and stabilisation-section |
WO2008076625A2 (en) | 2006-12-15 | 2008-06-26 | Hall David R | System for steering a drill string |
EP2092153A2 (en) * | 2006-12-15 | 2009-08-26 | Hall, David R. | System for steering a drill string |
EP2092153A4 (en) * | 2006-12-15 | 2015-03-25 | Services Petroliers Schlumberger | System for steering a drill string |
US8307921B2 (en) | 2007-06-07 | 2012-11-13 | National Oilwell Varco, L.P. | Drilling apparatus |
GB2462966B (en) * | 2007-06-07 | 2012-10-10 | Nat Oilwell Varco Lp | Drilling apparatus with a pilot hole drilling assembly |
US8448721B2 (en) | 2007-12-19 | 2013-05-28 | Schlumberger Technology Corporation | Directional drilling system |
GB2474195B (en) * | 2008-07-11 | 2012-06-06 | Schlumberger Holdings | Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
GB2474195A (en) * | 2008-07-11 | 2011-04-06 | Schlumberger Holdings | Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
RU2513602C2 (en) * | 2008-07-11 | 2014-04-20 | Шлюмбергер Текнолоджи Б.В. | Drill bit for controlled directed boring, boring system and method of boring of curved well shafts |
US8960329B2 (en) | 2008-07-11 | 2015-02-24 | Schlumberger Technology Corporation | Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
WO2010005881A1 (en) * | 2008-07-11 | 2010-01-14 | Schlumberger Holdings Limited | Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
US9074436B2 (en) | 2008-10-16 | 2015-07-07 | Schlumberger Technology Corporation | Methods for installing sensors in a borehole |
US8936110B2 (en) | 2009-04-09 | 2015-01-20 | Nov Downhole Eurasia Limited | Under reamer |
US9689209B2 (en) | 2010-12-29 | 2017-06-27 | Nov Downhole Eurasia Limited | Large gauge concentric underreamer |
CN104114805A (en) * | 2012-02-17 | 2014-10-22 | 哈利伯顿能源服务公司 | Directional drilling systems |
US9556677B2 (en) | 2012-02-17 | 2017-01-31 | Halliburton Energy Services, Inc. | Directional drilling systems |
Also Published As
Publication number | Publication date |
---|---|
US7207398B2 (en) | 2007-04-24 |
DE60206276T2 (en) | 2006-05-11 |
EP1407110A1 (en) | 2004-04-14 |
DE60206276D1 (en) | 2006-02-02 |
EP1407110B1 (en) | 2005-09-21 |
US20040238221A1 (en) | 2004-12-02 |
NO20040173L (en) | 2004-03-15 |
CA2453353C (en) | 2010-06-22 |
RU2004104367A (en) | 2005-06-27 |
RU2317396C2 (en) | 2008-02-20 |
CN1617973A (en) | 2005-05-18 |
CA2453353A1 (en) | 2003-01-30 |
AR034780A1 (en) | 2004-03-17 |
CN100347397C (en) | 2007-11-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2453353C (en) | Steerable rotary drill bit assembly with pilot bit | |
US4836301A (en) | Method and apparatus for directional drilling | |
EP0247125B1 (en) | Improvements in directional drilling of a drill string | |
CA2991486C (en) | Steering assembly for directional drilling of a wellbore | |
US4995465A (en) | Rotary drillstring guidance by feedrate oscillation | |
US5490569A (en) | Directional boring head with deflection shoe and method of boring | |
US8590636B2 (en) | Rotary steerable drilling system | |
CA2650645C (en) | Directional control drilling system | |
EP1008717B1 (en) | Rotary steerable well drilling system utilizing sliding sleeve | |
AU2011266774B2 (en) | Rotary steerable tool actuator tool face control | |
EP0467642A2 (en) | Earth drilling system and method for controlling the direction of a borehole | |
AU692040B2 (en) | Steerable drilling with downhole motor | |
EP0554977B1 (en) | Stabilisation devices for drill motor | |
GB2282165A (en) | Directional drilling apparatus and method | |
EP3701118B1 (en) | Rotating disk valve for rotary steerable tool | |
EP3589816B1 (en) | Hybrid rotary steerable system and method | |
GB2373272A (en) | A variable orientation downhole tool | |
US10851591B2 (en) | Actuation apparatus of a directional drilling module | |
RU2773910C2 (en) | Controlled rotary system with cutters | |
GB2568408B (en) | Steering assembly for directional drilling of a wellbore |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002764714 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2453353 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20028142098 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2002764714 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10483922 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002764714 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |