US3710864A - Well tubing tie back method and apparatus - Google Patents
Well tubing tie back method and apparatus Download PDFInfo
- Publication number
- US3710864A US3710864A US00104041A US3710864DA US3710864A US 3710864 A US3710864 A US 3710864A US 00104041 A US00104041 A US 00104041A US 3710864D A US3710864D A US 3710864DA US 3710864 A US3710864 A US 3710864A
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- United States
- Prior art keywords
- tubing
- string
- parted
- tool body
- tool
- Prior art date
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- Expired - Lifetime
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- 238000000034 method Methods 0.000 title claims description 13
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
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
- 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
- E21B17/042—Threaded
-
- 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
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/10—Reconditioning of well casings, e.g. straightening
Definitions
- ABSTRACT A tool adapted for insertion in a tubing string in oil [211 App]' and gas wells is sized for fitting over and sealingly connecting the tool to a parted tubing string already in the [52] U.S. Cl. ..l66/277, 166/242, 166/313, well whereby leak-proof fluid communication can be 166/315 established in the reconstructed tubing string. Espe- [51] Int.
- the upper section of the tool is threaded for 2,495,352 1 1950 Smith ..l66/277 connection to the P String tubing while the 2,593,725 4/:952 Brown ..166/277 lower end of the has a cut "P guide for scooping 1,788,829 1 1931 Gray ..294/86.33 x the parted tubing end into the receptacle lower 2,385,425 9/1945 Slezak ..285/302 tion of the tool containing the sealing members.
- an additional resilient seal 3,331,976 5/1968 Goodson et a1 ..285/35l X aids in providing an additional sealing effect for the 2,560,263 7/1951 Wiegand et al ..285/351 X beveled meta
- the present invention relates, generally, to methods and apparatus for improving the efficiency of production from oil and gas wells, and in particular, to methods and apparatus for reestablishing communication with one or more tubing strings having been previously parted.
- tubing In the art of oil and gas production, for various reasons, tubing necessarily is parted, as for example, by well-known mechanical or chemical cutters. Tubing is often stuck near the bottom of the well and needs to be changed out above the retained point. Again, a packer or sand screen can sometimes not be retrieved and it is necessary to separate the tubing at some point above the sand screen or packer.
- the objects of the invention are achieved, broadly, by the provision of an apparatus, and method for using such apparatus, which is threadedly attachable at one end to a tubing string and which at its other end is sealably attachable to a previously parted tubing string within the borehole to accomplish fluid communication between the two strings of tubing.
- FIG. 1 is a side elevational view of an apparatus according to the invention
- FIG. 2 is a side elevational view of an alternative embodiment according to the invention.
- FIG. 3 is a side elevational view of a section of parted tubing finding special utility with the apparatus and method according to the invention, the parted tubing being one of a dual string of tubing located in a side elevational view of a borehole leading from the earth's surface.
- the threaded section 11 could have male or female threads for attachment to the tubing string which would normally extend to the earths surface (also not illustrated but for all practical purposes would resemble the unparted tubing string illustrated in FIG. 3.)
- the tool 10 is formed of two sections 12 and 13, the upper section 12 having a cylindrical internal diameter from points 14 to 15 of 2 inches to accommodate a full volume flow with standard 2% inches O.D. tubing which might be used in a 7 inch cased bore hole.
- the upper section 12 in addition to having its upper end 11 threaded for connection to the tubing string, is also threadedly attached to the lower section 13 of the tool 10, the threads therebetween generally identified by the numeral 16.
- the length of the threads 16 is nominally set at about 2 /4 inches, being the dimension between points 17 and 18.
- the upper section 12, being dimensioned between points 19 and 20, is nominally 8 inches.
- the lower end of the upper section 12 is flaired out or tapered at points 21 to mate with the internal dimension of the lower section 13 of the tool 10, that internal dimension being approximately 2.425" 10.010" as measured between points 22 and 23.
- each O-ring 25 having a thickness of 0.125 inches.
- the O-rings 25 are dimensioned to have an internal diameter, as illustrated between points 26 and 27 of about 2.375 inches. Thus, a parted tubing having a 2.375 CD. will form a seal with the internal surface of the O- rings 25.
- a cut away scooping section 28 having an approximate 45 angle cut therein which serves to cut through any sand or debris in passing through the bore hole and which' also serves to scoop the parted tubing into the lower end of the tool 10.
- FIG. 2 illustrates an alternative embodiment of the invention wherein an additional resilient seal 30 isformed adjacent the tapered shoulder 21 whereby the metal-to-metal seal effect discussed with respect to the embodiment of FIG. 1 is enhanced.
- the seal 30 could also be rubber.
- FIG. 3 there is illustrated an earth bore hole 40 having a casing 41.
- a conventional dual string packer 42 is shown set within the bore hole having a pair of tubing strings 43 and 44 passing -therethrough, all of which is conventional in the art.
- each of the tubing strings 43 and 44 would reach the earths surface 45.
- the tubing 43 has been parted at the point 46, as for example, by a mechanical or chemical tubing cutter.
- the point 46 on the form to the tapered shoulder 21 to effect an adequate seal for subsequent production.
- An apparatus for establishing fluid communication between a string of tubing and a parted string of tubing in an earth bore hole comprising:
- a tool body having an upper threaded end for threadedly engaging a string of tubing, said tool body having a first upper cylindrical bore of one dimension atleast as large as the internal diameter of said parted string of tubing and a second lower cylindrical bore of a larger dimension at least as large as the external diameter of said parted string of tubing;
- the method of establishing a fluid communication path between a first string of tubing and a parted string of tubing in an earth bore hole comprising the steps of placing a tool body on the lower end of said first string of tubing wherein said tool body has at least one sealing element internal thereto, running said first string of tubing and said attachedtool body down in theearth bore hole until said tool body extends over said parted string of tubing'to engage said at least one sealing element with said parted string of tubing, and then deforming the uppermost portion of the parted string of tubing by applying additional weight of the first string of tubing to said uppermost portion of said parted string of tubing to thereby provide additional sealingbetween said first string and said parted string of tubmg.
Abstract
A tool adapted for insertion in a tubing string in oil and gas wells is sized for fitting over and sealingly connecting the tool to a parted tubing string already in the well whereby leak-proof fluid communication can be established in the reconstructed tubing string. Especially designed for reestablishing communication with tubing that has been parted, for example as with a mechanical or chemical tubing cutter, the lower inner section of the tool has a plurality of spaced rubber O-rings to provide a first sealing action and a reduced internal diameter above the O-rings for establishing a beveled metal-to-metal seal with the previously parted tubing. The upper section of the tool is threaded for connection to the upper string of tubing while the lower end of the tool has a cut lip guide for scooping the parted tubing end into the receptacle lower section of the tool containing the sealing members. In an alternative embodiment, an additional resilient seal aids in providing an additional sealing effect for the beveled metal-to-metal seal.
Description
United States Patent Mitchell [451 Jan, 16, 1973 [54] WELL TUBING TIE BACK METHOD Primary Examiner-Stephen J. Novosad AND APPARATUS Att0rneyRobert W. Mayer, Thomas P. Hubbard, Jr., 1 Daniel Rubin, Raymond T. Majesko, Roy Van Winkle, [75] Inventor. Rayford E. Mitchell, l-Iouma, La. William E- Juhnson, Jr. and Eddie E. Scott [73] Assignee: Dresser Industries, Inc., Dallas, Tex. 22 Filed: Jan. 5, 1971 [57] ABSTRACT A tool adapted for insertion in a tubing string in oil [211 App]' and gas wells is sized for fitting over and sealingly connecting the tool to a parted tubing string already in the [52] U.S. Cl. ..l66/277, 166/242, 166/313, well whereby leak-proof fluid communication can be 166/315 established in the reconstructed tubing string. Espe- [51] Int. Cl ..E2lb 29/00, E21b 43/00 cially designed for reestablishing communication with [58] Field of Search ..166/277,297, 315, 98, 242, tubing that has been parted, for example as with a 166/243, 313; 285/302, 351, 15; 294/861, mechanical or chemical tubing cutter, the lower inner 3 8626 section of the tool has a plurality of spaced rubber 0- rings to provide a first sealing action and a reduced in- [56] References Cited temal diameter above the O-rings for establishing a beveled metal-to-metalv seal with the previously parted UNITED STATES PATENTS tubing. The upper section of the tool is threaded for 2,495,352 1 1950 Smith ..l66/277 connection to the P String tubing while the 2,593,725 4/:952 Brown ..166/277 lower end of the has a cut "P guide for scooping 1,788,829 1 1931 Gray ..294/86.33 x the parted tubing end into the receptacle lower 2,385,425 9/1945 Slezak ..285/302 tion of the tool containing the sealing members. In an 1,557,480 10/1925 Plante ..166/98 alternative embodiment, an additional resilient seal 3,331,976 5/1968 Goodson et a1 ..285/35l X aids in providing an additional sealing effect for the 2,560,263 7/1951 Wiegand et al ..285/351 X beveled meta| to meta| Sea]. 2,457,908 1/1949 Meyerhoefer ..285/302 X r 3 Claims, 3 Drawing Figures 2o H v T: 1
PATENTEU M 1 5 7 3.710.864
SHEEI 1 OF 2 I a 2 28 INVENTOR RAYFORD E. MITCHELL ATTORNEY INVENTOR RAYFORD E. MITCHELL ATTORNEY sum 2 BF 2 PATENTED JAN 16 I975 WELL TUBING TIE BACK METHOD AND APPARATUS BACKGROUND OF THE INVENTION The present invention relates, generally, to methods and apparatus for improving the efficiency of production from oil and gas wells, and in particular, to methods and apparatus for reestablishing communication with one or more tubing strings having been previously parted.
In the art of oil and gas production, for various reasons, tubing necessarily is parted, as for example, by well-known mechanical or chemical cutters. Tubing is often stuck near the bottom of the well and needs to be changed out above the retained point. Again, a packer or sand screen can sometimes not be retrieved and it is necessary to separate the tubing at some point above the sand screen or packer.
It is therefore the primary object of this invention to provide a new and improved method and apparatus for reestablishing a substantially leak-proof fluid communication between a string of tubing and a previously parted tubing string; 7
It is a further object of the invention to provide a new and improved tool of such dimensions as to allow a fluid communication path, between strings of tubing as to cause no reduction in flow volume;
It is still another object of the invention to provide a tool for insertion between strings of tubing having internal dimensions such that an artificial lift can be installed without normal removal of all previous down hole installation equipment; and
It is yet another object of the invention to provide a tool for insertion between strings of tubing of such dimensions that such tools can be used with multiple tubing strings, even in connecting two parted dual tubing strings at the same point in the casing.
The objects of the invention are achieved, broadly, by the provision of an apparatus, and method for using such apparatus, which is threadedly attachable at one end to a tubing string and which at its other end is sealably attachable to a previously parted tubing string within the borehole to accomplish fluid communication between the two strings of tubing.
These and other objects, features and advantages of the present invention will be readily apparent to those skilled in the art from a reading of the following detailed specification and drawing, in which:
FIG. 1 is a side elevational view of an apparatus according to the invention;
FIG. 2 is a side elevational view of an alternative embodiment according to the invention; and
FIG. 3 is a side elevational view of a section of parted tubing finding special utility with the apparatus and method according to the invention, the parted tubing being one of a dual string of tubing located in a side elevational view of a borehole leading from the earth's surface.
Referring now to the invention in more detail, especially to FIG. l,there is illustrated a tool adapted to be threadedly attached to a tubing string (not illustrated) at the upper end 1 l of tool 10. Depending upon the need, the threaded section 11 could have male or female threads for attachment to the tubing string which would normally extend to the earths surface (also not illustrated but for all practical purposes would resemble the unparted tubing string illustrated in FIG. 3.) For ease of fabrication, the tool 10 is formed of two sections 12 and 13, the upper section 12 having a cylindrical internal diameter from points 14 to 15 of 2 inches to accommodate a full volume flow with standard 2% inches O.D. tubing which might be used in a 7 inch cased bore hole. This also allows instrumentation or valves to be lowered through the tool 10 which can normally be lowered through the remainder of the tubing string. The upper section 12, in addition to having its upper end 11 threaded for connection to the tubing string, is also threadedly attached to the lower section 13 of the tool 10, the threads therebetween generally identified by the numeral 16. The length of the threads 16 is nominally set at about 2 /4 inches, being the dimension between points 17 and 18. The upper section 12, being dimensioned between points 19 and 20, is nominally 8 inches.
The lower end of the upper section 12 is flaired out or tapered at points 21 to mate with the internal dimension of the lower section 13 of the tool 10, that internal dimension being approximately 2.425" 10.010" as measured between points 22 and 23.
Within and around the cylindrical inner surface of the lower section 13 are a plurality of spaced grooves 24, for example nine, each of which is sized to snugly receive a resilient O-ring 25, for example of rubber, each O-ring 25 having a thickness of 0.125 inches. The O-rings 25 are dimensioned to have an internal diameter, as illustrated between points 26 and 27 of about 2.375 inches. Thus, a parted tubing having a 2.375 CD. will form a seal with the internal surface of the O- rings 25.
At the lower end of the lower section 13 is a cut away scooping section 28 having an approximate 45 angle cut therein which serves to cut through any sand or debris in passing through the bore hole and which' also serves to scoop the parted tubing into the lower end of the tool 10.
FIG. 2 illustrates an alternative embodiment of the invention wherein an additional resilient seal 30 isformed adjacent the tapered shoulder 21 whereby the metal-to-metal seal effect discussed with respect to the embodiment of FIG. 1 is enhanced. By way of example, the seal 30 could also be rubber.
Referring now to FIG. 3, there is illustrated an earth bore hole 40 having a casing 41. A conventional dual string packer 42 is shown set within the bore hole having a pair of tubing strings 43 and 44 passing -therethrough, all of which is conventional in the art.
During normal operation, each of the tubing strings 43 and 44 would reach the earths surface 45. However, as shown in FIG. 3, the tubing 43 has been parted at the point 46, as for example, by a mechanical or chemical tubing cutter. As is often the case, the point 46 on the form to the tapered shoulder 21 to effect an adequate seal for subsequent production.
As illustrated in FIG. 2, if the resilient seal 30 is added to the tapered shoulder-21, additional sealing is effected.
Thus there has been illustratedand described herein an economical method and apparatus for connecting and sealing a parted tubing string. It should be appreciated that although the specific embodiment illustrates the connection of tubing in a multiple string environment, the same apparatus can be used in single string environments. It should also be appreciated that the tool is dimensioned such that two such reconnections in the dual string situation can be accomplished at the samepoint in the casing. It should also be appreciated that testing of the apparatus according to the invention has proved to be quite successful even though the previously parted tubing does not butt up completely against the tapered shoulder, relying solely upon the O-ring seal.
The embodiments of the invention in which an exclusive property or privilege isclaimed are defined as follows:
'1. An apparatus for establishing fluid communication between a string of tubing and a parted string of tubing in an earth bore hole, comprising:
a tool body having an upper threaded end for threadedly engaging a string of tubing, said tool body having a first upper cylindrical bore of one dimension atleast as large as the internal diameter of said parted string of tubing and a second lower cylindrical bore of a larger dimension at least as large as the external diameter of said parted string of tubing; and
shoulder having a resilient member attached thereto interfacing said upper and lower bores,- said shoulder being downwardly and radially outwardly tapered from said upper bore to said lower bore, whereby said tool body can be extended over said parted string of tubing and additional tubing weight applied until said parted string of tubing contacts said resilient member to the extent necessary to form' a seal between said tapered shoulder and the top of said parted string of tubing.
2. The method of establishing a fluid communication path between a first string of tubing and a parted string of tubing in an earth bore hole comprising the steps of placing a tool body on the lower end of said first string of tubing wherein said tool body has at least one sealing element internal thereto, running said first string of tubing and said attachedtool body down in theearth bore hole until said tool body extends over said parted string of tubing'to engage said at least one sealing element with said parted string of tubing, and then deforming the uppermost portion of the parted string of tubing by applying additional weight of the first string of tubing to said uppermost portion of said parted string of tubing to thereby provide additional sealingbetween said first string and said parted string of tubmg.
3. The method of establishing a fluid communication path between a first string of tubing and a parted string of tubing in an earth bore hole comprising the steps of placing a tool body on the lower end of said first string of tubing, running said first string of tubing and said attached tool body down m the earth bore hole until said tool body extends over said parted string of tubing, and then deforming the uppermost portion of the parted string of tubingby applying additional weight of the first string of tubing to said uppermost portion of said parted string of tubing to thereby provide a fluid seal between said first string and said parted string of tubing.
Claims (3)
1. An apparatus for establishing fluid communication between a string of tubing and a parted string of tubing in an earth bore hole, comprising: a tool body having an upper threaded end for threadedly engaging a string of tubing, said tool body having a first upper cylindrical bore of one dimension at least as large as the internal diameter of said parted string of tubing and a second lower cylindrical bore of a larger dimension at least as large as the external diameter of said parted string of tubing; and a shoulder having a resilient member attached thereto interfacing said upper and lower bores, said shoulder being downwardly and radially outwardly tapered from said upper bore to said lower bore, whereby said tool body can be extended over said parted string of tubing and additional tubing weight applied until said parted string of tubing contacts said resilient member to the extent necessary to form a seal between said tapered shoulder and the top of said parted string of tubing.
2. The method of establishing a fluid communication path between a first string of tubing and a parted string of tubing in an earth bore hole comprising the steps of placing a tool body on the lower end of said first string of tubing wherein said tool body has at least one sealing element internal thereto, running said first string of tubing and said attached tool body down in the earth bore hole until said tool body extends over said parted string of tubing to engage said at least one sealing element with said parted string of tubing, and then deforming the uppermost portion of the parted string of tubing by applying additional weight of the first string of tubing to said uppermost portion of said parted string of tubing to thereby provide additional sealing between said first string and said parted string of tubing.
3. The method of establishing a fluid communication path between a first string of tubing and a parted string of tubing in an earth bore hole comprising the steps of placing a tool body on the lower end of said first string of tubing, running said first string of tubing and said attached tool body down in the earth bore hole until said tool body extends over said parted string of tubing, and then deforming the uppermost portion of the parted string of tubing by applying additional weight of the first string of tubing to said uppermost portion of said parted string of tubing to thereby provide a fluid seal between said first string and said parted string of tubing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10404171A | 1971-01-05 | 1971-01-05 |
Publications (1)
Publication Number | Publication Date |
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US3710864A true US3710864A (en) | 1973-01-16 |
Family
ID=22298365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00104041A Expired - Lifetime US3710864A (en) | 1971-01-05 | 1971-01-05 | Well tubing tie back method and apparatus |
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US (1) | US3710864A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5348092A (en) * | 1993-03-26 | 1994-09-20 | Atlantic Richfield Company | Gravel pack assembly with tubing seal |
US5829524A (en) * | 1996-05-07 | 1998-11-03 | Baker Hughes Incorporated | High pressure casing patch |
US6012516A (en) * | 1997-09-05 | 2000-01-11 | Schlumberger Technology Corporation | Deviated borehole drilling assembly |
US6021850A (en) * | 1997-10-03 | 2000-02-08 | Baker Hughes Incorporated | Downhole pipe expansion apparatus and method |
US6029748A (en) * | 1997-10-03 | 2000-02-29 | Baker Hughes Incorporated | Method and apparatus for top to bottom expansion of tubulars |
US6073692A (en) * | 1998-03-27 | 2000-06-13 | Baker Hughes Incorporated | Expanding mandrel inflatable packer |
US6279659B1 (en) | 1998-10-20 | 2001-08-28 | Weatherford Lamb, Inc. | Assembly and method for providing a means of support and positioning for drilling multi-lateral wells and for reentry therein through a premilled window |
US6332498B1 (en) | 1997-09-05 | 2001-12-25 | Schlumberger Technology Corp. | Deviated borehole drilling assembly |
US6446724B2 (en) | 1999-05-20 | 2002-09-10 | Baker Hughes Incorporated | Hanging liners by pipe expansion |
US20160047177A1 (en) * | 2014-08-12 | 2016-02-18 | Meta Downhole Limited | Connector Apparatus |
US20160047178A1 (en) * | 2014-08-12 | 2016-02-18 | Meta Downhole Limited | Morphing Tubulars |
CN109386246A (en) * | 2017-08-08 | 2019-02-26 | 中国石油化工股份有限公司 | It is a kind of to sweep plug, the drilling tool of milling and method for tie-back sleeve |
CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力(天津)能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1557480A (en) * | 1923-06-15 | 1925-10-13 | Joseph A Plante | Coupling and pipe packer |
US1788829A (en) * | 1927-09-19 | 1931-01-13 | Gray Tool Co | Overshot fishing tool |
US2385425A (en) * | 1942-08-03 | 1945-09-25 | Turner Brass Works | Pipe connection |
US2457908A (en) * | 1947-07-24 | 1949-01-04 | Lewyt Corp | Coupling |
US2495352A (en) * | 1945-12-12 | 1950-01-24 | Dow Chemical Co | Well repair |
US2560263A (en) * | 1946-05-09 | 1951-07-10 | Wright Aeronautical Corp | Fluid line connection |
US2593725A (en) * | 1946-04-22 | 1952-04-22 | Cicero C Brown | Casing repairing device |
US3381976A (en) * | 1967-03-13 | 1968-05-07 | James O. Goodson | Tubing adapter |
-
1971
- 1971-01-05 US US00104041A patent/US3710864A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1557480A (en) * | 1923-06-15 | 1925-10-13 | Joseph A Plante | Coupling and pipe packer |
US1788829A (en) * | 1927-09-19 | 1931-01-13 | Gray Tool Co | Overshot fishing tool |
US2385425A (en) * | 1942-08-03 | 1945-09-25 | Turner Brass Works | Pipe connection |
US2495352A (en) * | 1945-12-12 | 1950-01-24 | Dow Chemical Co | Well repair |
US2593725A (en) * | 1946-04-22 | 1952-04-22 | Cicero C Brown | Casing repairing device |
US2560263A (en) * | 1946-05-09 | 1951-07-10 | Wright Aeronautical Corp | Fluid line connection |
US2457908A (en) * | 1947-07-24 | 1949-01-04 | Lewyt Corp | Coupling |
US3381976A (en) * | 1967-03-13 | 1968-05-07 | James O. Goodson | Tubing adapter |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5348092A (en) * | 1993-03-26 | 1994-09-20 | Atlantic Richfield Company | Gravel pack assembly with tubing seal |
US5829524A (en) * | 1996-05-07 | 1998-11-03 | Baker Hughes Incorporated | High pressure casing patch |
US6012516A (en) * | 1997-09-05 | 2000-01-11 | Schlumberger Technology Corporation | Deviated borehole drilling assembly |
US6332498B1 (en) | 1997-09-05 | 2001-12-25 | Schlumberger Technology Corp. | Deviated borehole drilling assembly |
US6334485B1 (en) | 1997-09-05 | 2002-01-01 | Schlumberger Technology Corporation | Deviated borehole drilling assembly |
US6021850A (en) * | 1997-10-03 | 2000-02-08 | Baker Hughes Incorporated | Downhole pipe expansion apparatus and method |
US6029748A (en) * | 1997-10-03 | 2000-02-29 | Baker Hughes Incorporated | Method and apparatus for top to bottom expansion of tubulars |
US6073692A (en) * | 1998-03-27 | 2000-06-13 | Baker Hughes Incorporated | Expanding mandrel inflatable packer |
US6279659B1 (en) | 1998-10-20 | 2001-08-28 | Weatherford Lamb, Inc. | Assembly and method for providing a means of support and positioning for drilling multi-lateral wells and for reentry therein through a premilled window |
US6561271B2 (en) | 1999-05-20 | 2003-05-13 | Baker Hughes Incorporated | Hanging liners by pipe expansion |
US6446724B2 (en) | 1999-05-20 | 2002-09-10 | Baker Hughes Incorporated | Hanging liners by pipe expansion |
US6598677B1 (en) | 1999-05-20 | 2003-07-29 | Baker Hughes Incorporated | Hanging liners by pipe expansion |
US6631765B2 (en) | 1999-05-20 | 2003-10-14 | Baker Hughes Incorporated | Hanging liners by pipe expansion |
US20040016545A1 (en) * | 1999-05-20 | 2004-01-29 | Baugh John L. | Hanging liners by pipe expansion |
US6915852B2 (en) | 1999-05-20 | 2005-07-12 | Baker Hughes Incorporated | Hanging liners by pipe expansion |
US20160047177A1 (en) * | 2014-08-12 | 2016-02-18 | Meta Downhole Limited | Connector Apparatus |
US20160047178A1 (en) * | 2014-08-12 | 2016-02-18 | Meta Downhole Limited | Morphing Tubulars |
US9840878B2 (en) * | 2014-08-12 | 2017-12-12 | Schlumberger Technology Corporation | Connector apparatus |
US10184302B2 (en) * | 2014-08-12 | 2019-01-22 | Schlumberger Technology Corporation | Morphing tubulars |
CN109386246A (en) * | 2017-08-08 | 2019-02-26 | 中国石油化工股份有限公司 | It is a kind of to sweep plug, the drilling tool of milling and method for tie-back sleeve |
CN109386246B (en) * | 2017-08-08 | 2021-01-05 | 中国石油化工股份有限公司 | Drilling tool and method for plug sweeping, grinding and milling of tieback cylinder |
CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力(天津)能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
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