US2647727A - Pipe releasing means - Google Patents
Pipe releasing means Download PDFInfo
- Publication number
- US2647727A US2647727A US227861A US22786151A US2647727A US 2647727 A US2647727 A US 2647727A US 227861 A US227861 A US 227861A US 22786151 A US22786151 A US 22786151A US 2647727 A US2647727 A US 2647727A
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- US
- United States
- Prior art keywords
- bore
- housing
- pipe
- valve
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/03—Freeing by flushing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
- Y10T137/7841—One valve carries head and seat for second valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7908—Weight biased
- Y10T137/7909—Valve body is the weight
- Y10T137/791—Ball valves
Definitions
- the former practice has been to attempt to remove the lodged or stuck portion of the drill pipe, which is commonly referred to as the fish,
- one object of this invention to provide an improved means for recovering and removing pipe, tubing, casing and other objects which may have become lodged, or which may have fallen downwardly, within a well bore.
- Another object of the invention is to provide an improved circulation device for reestablishing circulation around the walls of a string of pipe, or the like, in which it is connected, whereby circulation may be established when the portion of the pipe below the circulation device has become stuck in the well bore.
- a further object of the invention is to provide an improved circulation device for reestablishing circulation through the wall of a string of pipe into Which it is connected, and in which the inside diameter is not restricted so as to prevent the passage of tools and other objects that will pass through the string of pipe.
- Fig. 1 is an enlarged, vertical sectional view, showing a circulation breaker.
- Fig. 2 is a view similar to Fig. 1, showing the circulation breaker of Fig. 1 in its operating or open position,
- Fig. 3 is a horizontal cross-sectional view taken on the line 3-3 of Fig. 1.
- a circulation breaker or by-pass valve device is shown in Figs. 1, 2 and 3.
- the numeral 450 designates a sectional tubular housing.
- the upper portion 45! of said housing has its upper end internally screw-threaded and its lower por-- tion reduced and externally screw-threaded.
- the lower portion 452 of said housing is screwthreadedly attached to the lower end of the portion 45l, and the lower end of the portion 452 is reduced and externally screw-threaded so that a tubular pipe 453 may be attached thereto.
- a tubular pipe 454 may be attached to the upper end of the portion 45l of the housing 550.
- the housing may be connected into a string of tubing.
- the portion 551 of the housing is provided with an axial bore 455.
- a plurality of ratchet teeth 455 are provided on the walls of said bore.
- An annular seat 451 is provided on the lower portion of the lower end of the housing 956 surrounding the bore 455.
- the housing 452 is pro vided with an axial bore 558 therein, the bore is enlarged at 959 and further enlarged at 459 at the upper end of the portion 352.
- a valve head 45! has a valve seat 352 on its upper periphery and seats upon the valve seat 957 located on the lower end of the housing 45!.
- a sleeve 563 depends from said valve head and has its lower end extending into the enlarged bore 459.
- the head and sleeve have an axial bore 454 extending therethrough.
- the head ABI is slidable within the enlarged bore 450, while the sleeve 653 is slidable within the bore 459.
- a coiled spring 955 surrounds the sleeve 452 and has its upper end underlying the head itl, and its lower end resting upon the bottom of the enlarged bore 450. Thus said spring supports the head.
- a plurality of orifices 456 are provided in the housing 452 at its reduced portion so that they establish communication between the enlarged bore 469 and the exterior of the housing 152.
- a disk 491 is disposed above the head 151 and has an axial opening 568 therethrough. Said disk is provided with a plurality of upwardlyextending, flexible fingers 459 which have their uppermost ends 415 bent outwardly so that they may engage within the ratchet teeth M35.
- the spring 455 will support the head and will close the valve seats fluid passed through the device through the sleeve 463.
- the bore of the device is unrestricted so that any tool may be passed therethrough.
- the string of tubing becomes lodged or stuck in the well bore and it is desirable to attempt to establish circulation around said pipe, it is only necessary to drop or run into the well bore a suitable tool to close the bore of the sleeve 093.
- a ball 41! has been shown, however a go-devil or the like may be dropped or run in or a wire line so as to close said bore. With the bore closed, pump pressure is applied to said disk and plugging means and the disk and head are moved downwardly.
- a circulation breaker comprising an exterior housing, ports extending therethrough, a valve seat in said housing, a sleeve valve slidably engaging said valve seat, a sleeve adapted to engage said sleeve valve, a spring mounted between said housing and said sleeve valve and normally urging said sleeve valve upwardly into a seating position to prevent circulation between the bore of said housing and the exterior thereof through said ports, said housing having ratchet teeth on an interior surface thereof, and said sleeve having fingers adapted to engage said teeth and prevent upward movement of said sleeve and said sleeve valve, thus permitting circulation through said ports.
- a circulation breaker comprising an exterior housing, ports extending therethrough, a valve seat in said housing, a sleeve valve slidably engaging said valve seat, a sleeve adapted to engage said sleeve valve, a spring mounted between said housing and said sleeve valve and normally urging said sleeve valve upwardly into a seating position to prevent circulation between the bore of said housing and the exterior thereof through said ports, said sleeve comprising an annular base and upwardly extending resilient fingers, said base engaging an upper flange on said sleeve valve, said fingers engaging ratchet teeth on the interior of said housing.
- a by-pass valve device comprising a tubular housing including upper and lower portions and having an enlarged bore at the upper end of said lower portion, ports in said housing leading into said enlarged bore, an annular valve seat at the lower end of said upper housing portion, a valve seating upon said valve seat including a sleeve slidably mounted in the lower end of said lower housing portion, a spring mounted between said housing and said valve normally urging said valve upwardly into seating position, ratchet teeth on the interior surface of said upper housing portion, a disk having an axial opening therethrough in said upper housing portion above said valve, and a plurality of upwardly extending fingers having outwardly bent upper ends on said disk, said fingers being adapted to engage said ratchet teeth to hold said valve in open position, said disk being axially slidable in said bore whereby downward movement of said disk opens said valve to provide communication between said bore and the exterior of said housing.
- a by-pass valve device comprising a tubular housing including upper and lower portions and having an enlarged bore at the upper end of said lower portion, ports in said housing leading into said enlarged bore, an annular valve seat at the lower end of said upper housing portion, a valve seating upon said valve seat including a sleeve slidably mounted in the lower end of said lower housing portion, a spring mounted between said housing and said valve normally urging said valve upwardly into seating position, teeth on the interior surface of said upper housing portion, a disk having an axial opening therethrough in said upper housing portion above said valve, and a plurality of upwardly extending fingers on said disk, said fingers being adapted to engage said teeth to hold said valve in open position, said disk being axially slidable in said bore whereby downward movement of said disk opens said valve to provide communication between said bore and the exterior of said housing.
- a by-pass valve device comprising a tubular housing including upper and lower portions and having an enlarged bore at the upper end of said lower portion, ports in said housing leading into said enlarged bore, an annular valve seat at the lower end of said upper housing portion, a valve seating upon said valve seat including a sleeve sl-idably mounted in the lower end of said lower housing portion, said sleeve having a diameter substantially less than that of said enlarged bore, and a spring mounted around said sleeve and normally urging said valve upwardly into seatin position.
Description
Aug. 4, 1953 c. R. EDWARDS 2,647,727 PIPE RELEASING MEANS Original Filed April 27, 1945 i Cn-mzu-zs Q0: EawnaJnsf-Dzcnnttifi: l?- j 5y Fmucss RoumAEw/Azns, Exzcsnrmx? Patented Aug. 4, 1953 PIPE RELEASING MEAN S Charles R. Edwards, Houston, bertha Edwards, executrix Edwards, deceased Application April 27, 1945, Serial No.
Tex.; Frances R- of Charles Ross which is a division of application Serial No. 334,947, May 13, 1940. Divided and this application April 20, 1951, Serial No. 227,861
Claims. (01. 255-28) This invention relates to new and useful improvements in means for recovering elements from well bores.
In the well art, it is well known that in the drilling and completion of wells, pipe, in one form or another, is substantially at all times extending into the well bore. During the actual drilling, the drill stem or pipe, which is made up of sections connected by coupling collars, has the drill bit mounted on its lower end and is rotatable so as to rotate the bit and perform the drilling operation. After the well is drilled in, well tubing and easing are disposed within the well bore and, of course, remain therein so long as the well is producing. The pipe extending into the well bore may separate, collapse or for other reasons, may fall downwardly in the bore tothe bottom thereof; or the Wall of the bore may cave in and firmly lodge the pipe, or a portion thereof, within the bore. When any of the foregoing occurs, it is necessary that the pipe be removed or fished out from the bore before the well operations may continue and manifestly, such removal, particularly where the pipe is firmly lodged or stuck within the bore, creates quite a problem.
The former practice has been to attempt to remove the lodged or stuck portion of the drill pipe, which is commonly referred to as the fish,
by grappling the pipe and pulling on the same with very powerful machinery, which often seriously damages the pipe by overstraining the upper portion of the pipe until the pipe is broken near the surface. Such breaking of the pipe causes the elastic stretch in that portion of pipe below to snap the lower portion of pipe downwardly with great force and most generally corkscrews this pipe and bends it over in the cave-' outs and cavities, thereby damaging the same. After this happens, cutters, shooting, left-hand pipe, and other fishing tools are tried in an attempt to recover the pipe. The long sections of pipe are connected together by threaded collars or threaded tool joints. Sometimes the top of the lodged portion of pipe has been rotated to the left to affect disconnection of one of the many threaded joints, but when this is done, there is no way of determining which joint will be unscrewed. A joint at the top of the well, or only a few hundred feet from the surface of the ground will be broken out, because ordinarily the lower joints are made tighter due to the bit drag on said joints during the drilling operation. For this reason, merely rotating the pipe to unscrew the joints is not successful since it leaves the major portion of the pipe in the bore.
It is therefore, one object of this invention to provide an improved means for recovering and removing pipe, tubing, casing and other objects which may have become lodged, or which may have fallen downwardly, within a well bore.
Another object of the invention is to provide an improved circulation device for reestablishing circulation around the walls of a string of pipe, or the like, in which it is connected, whereby circulation may be established when the portion of the pipe below the circulation device has become stuck in the well bore.
A further object of the invention is to provide an improved circulation device for reestablishing circulation through the wall of a string of pipe into Which it is connected, and in which the inside diameter is not restricted so as to prevent the passage of tools and other objects that will pass through the string of pipe.
A construction designed to carry out the invention will be hereinafter described, together with other features of the invention.
The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown and wherein:
Fig. 1 is an enlarged, vertical sectional view, showing a circulation breaker.
Fig. 2 is a view similar to Fig. 1, showing the circulation breaker of Fig. 1 in its operating or open position,
Fig. 3 is a horizontal cross-sectional view taken on the line 3-3 of Fig. 1.
A circulation breaker or by-pass valve device is shown in Figs. 1, 2 and 3. The numeral 450 designates a sectional tubular housing. The upper portion 45! of said housing has its upper end internally screw-threaded and its lower por-- tion reduced and externally screw-threaded. The lower portion 452 of said housing is screwthreadedly attached to the lower end of the portion 45l, and the lower end of the portion 452 is reduced and externally screw-threaded so that a tubular pipe 453 may be attached thereto. It is pointed out that a tubular pipe 454 may be attached to the upper end of the portion 45l of the housing 550. Thus the housing may be connected into a string of tubing.
The portion 551 of the housing is provided with an axial bore 455. A plurality of ratchet teeth 455 are provided on the walls of said bore. An annular seat 451 is provided on the lower portion of the lower end of the housing 956 surrounding the bore 455. The housing 452 is pro vided with an axial bore 558 therein, the bore is enlarged at 959 and further enlarged at 459 at the upper end of the portion 352. A valve head 45! has a valve seat 352 on its upper periphery and seats upon the valve seat 957 located on the lower end of the housing 45!. A sleeve 563 depends from said valve head and has its lower end extending into the enlarged bore 459. The head and sleeve have an axial bore 454 extending therethrough. The head ABI is slidable within the enlarged bore 450, while the sleeve 653 is slidable within the bore 459. A coiled spring 955 surrounds the sleeve 452 and has its upper end underlying the head itl, and its lower end resting upon the bottom of the enlarged bore 450. Thus said spring supports the head.
A plurality of orifices 456 are provided in the housing 452 at its reduced portion so that they establish communication between the enlarged bore 469 and the exterior of the housing 152. A disk 491 is disposed above the head 151 and has an axial opening 568 therethrough. Said disk is provided with a plurality of upwardlyextending, flexible fingers 459 which have their uppermost ends 415 bent outwardly so that they may engage within the ratchet teeth M35. Thus the spring 455 will support the head and will close the valve seats fluid passed through the device through the sleeve 463.
In operation, the bore of the device is unrestricted so that any tool may be passed therethrough. In the event the string of tubing becomes lodged or stuck in the well bore and it is desirable to attempt to establish circulation around said pipe, it is only necessary to drop or run into the well bore a suitable tool to close the bore of the sleeve 093. In the drawings, a ball 41! has been shown, however a go-devil or the like may be dropped or run in or a wire line so as to close said bore. With the bore closed, pump pressure is applied to said disk and plugging means and the disk and head are moved downwardly. It is pointed out that when the disk is moved downwardly, the fingers will also move downwardly, and the upper bent ends of said fingers engaging the teeth 55% will hold the disk in that position (Fig. 2) so that the spring cannot move the head upwardly. The washing fluid is free to pass between the fingers and into the bore 4.09 and out through the orifice 466, thus washing the exterior of the pipe. It is pointed out that said fingers and teeth may be left out of said structure and in this instance the pressure of the fluid may be depended upon to hold said head in its downward or ajar position.
This application is a division of my copending application, Serial No. 590,682, filed April 27, 1945, now Patent No. 2,586,015, granted February 19, 1952, for Pipe Releasing Means, which application is in turn a division of application Serial No. 334,947, filed May 13, 1940, now Pat- 551 and 502 so that any ent No. 2,394,759, granted February 12, 1946, for Methods of and Means for Recovering Elements From Well Bores, which latter application is in turn a continuation-in-part of prior application Serial No. 301,762, filed August 24, 1928, now Patent No. 2,214,550, granted September 10, 1940, for Testing Device for Wells.
Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.
1 therefore particularly point out and distinctly claim as my invention:
1. A circulation breaker comprising an exterior housing, ports extending therethrough, a valve seat in said housing, a sleeve valve slidably engaging said valve seat, a sleeve adapted to engage said sleeve valve, a spring mounted between said housing and said sleeve valve and normally urging said sleeve valve upwardly into a seating position to prevent circulation between the bore of said housing and the exterior thereof through said ports, said housing having ratchet teeth on an interior surface thereof, and said sleeve having fingers adapted to engage said teeth and prevent upward movement of said sleeve and said sleeve valve, thus permitting circulation through said ports.
2. A circulation breaker comprising an exterior housing, ports extending therethrough, a valve seat in said housing, a sleeve valve slidably engaging said valve seat, a sleeve adapted to engage said sleeve valve, a spring mounted between said housing and said sleeve valve and normally urging said sleeve valve upwardly into a seating position to prevent circulation between the bore of said housing and the exterior thereof through said ports, said sleeve comprising an annular base and upwardly extending resilient fingers, said base engaging an upper flange on said sleeve valve, said fingers engaging ratchet teeth on the interior of said housing.
3. A by-pass valve device comprising a tubular housing including upper and lower portions and having an enlarged bore at the upper end of said lower portion, ports in said housing leading into said enlarged bore, an annular valve seat at the lower end of said upper housing portion, a valve seating upon said valve seat including a sleeve slidably mounted in the lower end of said lower housing portion, a spring mounted between said housing and said valve normally urging said valve upwardly into seating position, ratchet teeth on the interior surface of said upper housing portion, a disk having an axial opening therethrough in said upper housing portion above said valve, and a plurality of upwardly extending fingers having outwardly bent upper ends on said disk, said fingers being adapted to engage said ratchet teeth to hold said valve in open position, said disk being axially slidable in said bore whereby downward movement of said disk opens said valve to provide communication between said bore and the exterior of said housing.
4. A by-pass valve device comprising a tubular housing including upper and lower portions and having an enlarged bore at the upper end of said lower portion, ports in said housing leading into said enlarged bore, an annular valve seat at the lower end of said upper housing portion, a valve seating upon said valve seat including a sleeve slidably mounted in the lower end of said lower housing portion, a spring mounted between said housing and said valve normally urging said valve upwardly into seating position, teeth on the interior surface of said upper housing portion, a disk having an axial opening therethrough in said upper housing portion above said valve, and a plurality of upwardly extending fingers on said disk, said fingers being adapted to engage said teeth to hold said valve in open position, said disk being axially slidable in said bore whereby downward movement of said disk opens said valve to provide communication between said bore and the exterior of said housing.
5. A by-pass valve device comprising a tubular housing including upper and lower portions and having an enlarged bore at the upper end of said lower portion, ports in said housing leading into said enlarged bore, an annular valve seat at the lower end of said upper housing portion, a valve seating upon said valve seat including a sleeve sl-idably mounted in the lower end of said lower housing portion, said sleeve having a diameter substantially less than that of said enlarged bore, and a spring mounted around said sleeve and normally urging said valve upwardly into seatin position.
CHARLES R. EDWARDS.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 395,772 Darling Jan. 8, 1889 2,214,550 Edwards Sept. 10, 1940 2,394,759 Edwards Feb. 12, 1946
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US227861A US2647727A (en) | 1951-04-20 | 1951-04-20 | Pipe releasing means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US227861A US2647727A (en) | 1951-04-20 | 1951-04-20 | Pipe releasing means |
Publications (1)
Publication Number | Publication Date |
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US2647727A true US2647727A (en) | 1953-08-04 |
Family
ID=22854762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US227861A Expired - Lifetime US2647727A (en) | 1951-04-20 | 1951-04-20 | Pipe releasing means |
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US (1) | US2647727A (en) |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966917A (en) * | 1955-02-08 | 1961-01-03 | Sierra Engineering Company | Combination valve for breathing equipment |
US3129763A (en) * | 1961-05-26 | 1964-04-21 | Phillips Petroleum Co | Valve for well operation |
US3981360A (en) * | 1975-07-30 | 1976-09-21 | Cook Testing Co. | Well tubing drain |
US5494107A (en) * | 1993-12-07 | 1996-02-27 | Bode; Robert E. | Reverse cementing system and method |
US20040231846A1 (en) * | 2003-05-21 | 2004-11-25 | Griffith James E. | Reverse circulation cementing process |
US20050183857A1 (en) * | 2004-02-25 | 2005-08-25 | Halliburton Energy Services, Inc. | Removable surface pack-off device for reverse cementing applications |
US20060016600A1 (en) * | 2004-07-22 | 2006-01-26 | Badalamenti Anthony M | Methods and systems for cementing wells that lack surface casing |
US20060016599A1 (en) * | 2004-07-22 | 2006-01-26 | Badalamenti Anthony M | Cementing methods and systems for initiating fluid flow with reduced pumping pressure |
US20060042798A1 (en) * | 2004-08-30 | 2006-03-02 | Badalamenti Anthony M | Casing shoes and methods of reverse-circulation cementing of casing |
US20060086499A1 (en) * | 2004-10-26 | 2006-04-27 | Halliburton Energy Services | Methods and systems for reverse-circulation cementing in subterranean formations |
US20060086502A1 (en) * | 2004-10-26 | 2006-04-27 | Halliburton Energy Services | Casing strings and methods of using such strings in subterranean cementing operations |
US20060086503A1 (en) * | 2004-10-26 | 2006-04-27 | Halliburton Energy Services | Casing strings and methods of using such strings in subterranean cementing operations |
US20060131018A1 (en) * | 2004-12-16 | 2006-06-22 | Halliburton Energy Services, Inc. | Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
US20070062700A1 (en) * | 2005-09-20 | 2007-03-22 | Halliburton Energys Services, Inc. | Apparatus for autofill deactivation of float equipment and method of reverse cementing |
US20070089678A1 (en) * | 2005-10-21 | 2007-04-26 | Petstages, Inc. | Pet feeding apparatus having adjustable elevation |
US20070137870A1 (en) * | 2005-12-20 | 2007-06-21 | Griffith James E | Method and means to seal the casing-by-casing annulus at the surface for reverse circulation cement jobs |
US20070149076A1 (en) * | 2003-09-11 | 2007-06-28 | Dynatex | Cut-resistant composite |
US20070164364A1 (en) * | 2006-01-06 | 2007-07-19 | Hirohisa Kawasaki | Semiconductor device using sige for substrate and method for fabricating the same |
US7270183B2 (en) | 2004-11-16 | 2007-09-18 | Halliburton Energy Services, Inc. | Cementing methods using compressible cement compositions |
US20080083535A1 (en) * | 2006-10-06 | 2008-04-10 | Donald Winslow | Methods and Apparatus for Completion of Well Bores |
US20080196889A1 (en) * | 2007-02-15 | 2008-08-21 | Daniel Bour | Reverse Circulation Cementing Valve |
US20090020285A1 (en) * | 2007-07-16 | 2009-01-22 | Stephen Chase | Reverse-Circulation Cementing of Surface Casing |
US20090084555A1 (en) * | 2005-06-15 | 2009-04-02 | Paul Bernard Lee | Novel activating mechanism for controlling the operation of a downhole tool |
US20090107676A1 (en) * | 2007-10-26 | 2009-04-30 | Saunders James P | Methods of Cementing in Subterranean Formations |
US7533728B2 (en) | 2007-01-04 | 2009-05-19 | Halliburton Energy Services, Inc. | Ball operated back pressure valve |
US7533729B2 (en) | 2005-11-01 | 2009-05-19 | Halliburton Energy Services, Inc. | Reverse cementing float equipment |
US7614451B2 (en) | 2007-02-16 | 2009-11-10 | Halliburton Energy Services, Inc. | Method for constructing and treating subterranean formations |
AU2014205104A1 (en) * | 2013-01-13 | 2015-07-16 | Weatherford Technology Holdings, Llc | Ball seat apparatus and method |
US9734512B2 (en) | 2013-09-26 | 2017-08-15 | Ali Alhimiri | Rating system, process and algorithmic based medium for treatment of medical conditions in cost effective fashion utilizing best treatment protocols and financial assessment tools for determining a maximum cutoff point for assessing healthcare return on investment and to provide for improved clinical/functional outcomes |
US9734478B2 (en) | 2013-09-26 | 2017-08-15 | Ali Alhimiri | Rating system, process and predictive algorithmic based medium for treatment of medical conditions in cost effective fashion and utilizing management pathways for customizing or modifying of a base algorithm by an accountable care organization or other payor in order to establish best treatment protocols and financial assessment tools for incentivizing care providers and for achieving improved clinical/functional outcomes |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US395772A (en) * | 1889-01-08 | daeling | ||
US2214550A (en) * | 1928-08-24 | 1940-09-10 | Houston Engineers Inc | Testing device for wells |
US2394759A (en) * | 1940-05-13 | 1946-02-12 | Charles R Edwards | Method of recovering elements from well bores |
-
1951
- 1951-04-20 US US227861A patent/US2647727A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US395772A (en) * | 1889-01-08 | daeling | ||
US2214550A (en) * | 1928-08-24 | 1940-09-10 | Houston Engineers Inc | Testing device for wells |
US2394759A (en) * | 1940-05-13 | 1946-02-12 | Charles R Edwards | Method of recovering elements from well bores |
Cited By (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966917A (en) * | 1955-02-08 | 1961-01-03 | Sierra Engineering Company | Combination valve for breathing equipment |
US3129763A (en) * | 1961-05-26 | 1964-04-21 | Phillips Petroleum Co | Valve for well operation |
US3981360A (en) * | 1975-07-30 | 1976-09-21 | Cook Testing Co. | Well tubing drain |
US5494107A (en) * | 1993-12-07 | 1996-02-27 | Bode; Robert E. | Reverse cementing system and method |
US7013971B2 (en) | 2003-05-21 | 2006-03-21 | Halliburton Energy Services, Inc. | Reverse circulation cementing process |
US20040231846A1 (en) * | 2003-05-21 | 2004-11-25 | Griffith James E. | Reverse circulation cementing process |
US20070149076A1 (en) * | 2003-09-11 | 2007-06-28 | Dynatex | Cut-resistant composite |
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