US1336738A - Well-packer - Google Patents
Well-packer Download PDFInfo
- Publication number
- US1336738A US1336738A US1336738DA US1336738A US 1336738 A US1336738 A US 1336738A US 1336738D A US1336738D A US 1336738DA US 1336738 A US1336738 A US 1336738A
- Authority
- US
- United States
- Prior art keywords
- casing
- packer
- sleeve
- well
- pipe
- 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
- 238000007789 sealing Methods 0.000 description 8
- 239000011324 bead Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
- E21B33/1212—Packers; Plugs characterised by the construction of the sealing or packing means including a metal-to-metal seal element
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
Definitions
- My invention relates to an improvement in packers to be used in drilling wells for water, oil, gas, etc., in earth, rock or similar formations. It has especial application to the making of a tight joint between pipes or casings of different diameter while the same are positioned within the well.
- a packer is customarily used to close the space between the two sizes ol' casing and to make a tight joint between the two casings.
- the seal or packer ordinarily in use is quite liable to become injured and mutilated by Contact with the bit in drilling the continuation of the hole as the bit is withdrawn and inserted during the drilling operation-and the usual result is a broken seal which cannot'be easily repaired.
- One object of my invention is to provide a packer, which. may be used between the different sizes of casings used in well drilling, and which will be strong and durable and not easily mutilated or broken.
- Another object is to provide a packer for the purpose described which will be simple of construction and cheap to manufacture and also easily installed in the well.
- Figure 1 is a central longitudinal section showing the means of installing my device in the well; and l Fig. 2 is a similar section showing the means for setting my improved packer in the well so as to make a tight joint between the different sizes of casing.
- a packer 4 compiising a short length of tubing flared outwardly at its upper end 5 and having a slight outwardly extending flange or bead 6.
- This packer is threaded on its interior throat near the lower end thereof at 7 with a lefthand thread for thc purposes of attachment to a pipe 8 reduced in diameter at its lower end and threaded to cooperate with the same in introduced into the well.
- a tubular sealing sleeve 9 adapted to be forced outwardly by the expansion of the tube 4- to close the space between the said tube and the outer casing.
- the said sealing 'sleeve 9 is seated at its lower end upon a ring or washer l0 which rests upon the upper end of' the coupling 3 and support.; the Isealing sleeve in position.
- the said sleeve 9 is reduced in thickness by' beveling its inner diameter toward the upper end so that it fits closely around the packing tube 4.
- the outer surface of the seal member n thus be cylindrical, the upper end of the sealing sleeve fitting closely below the bead 6 at the upper end of the tube l.
- the sealing sleeve 9 may be made of any soft material such as lead or other composition, which is adapted to be compressed between the inner tube and the outer casing and thus form a tight seal.
- the inner tube l is made of a tough and ductile metal such as flange steel, copper, bronze .Lor other similar metal which will be adapted to withstand blows and the rough usage to which it is subjected, but is at the same time adapted to be pressed outwardly to close the space between the packer and the casing and compress the sealing sleeve 9 tightly between the tube and the casing.
- the pipe 8 is then given a righthand turn, thus operating'to unscrew the lefthand thread 7 and release the pipe 8 which, is then withdrawn from the hole.
- the purpose of. forming the thread 7 in a lefthand direction is now obvious, as it enables the pipe 8 to be released from the upper end of the casing 2 and the attached packer, by a righthand turn, which would only serve, if communicated to the pipe 2. and the parts connected therewith, to tighten the same and thus avoid the loosening of the joints in the pipe already set.
- a spear 11 is attached to the lower end of the pipe by means of a coupling 12.
- This spear is tapered inwardly toward the lower end, as shown at 12,' and is of the proper size to fit within the upper end of the packer.
- the ductile sleeve 5 and the sealing sleeve i) outside thereof will be wedged or jammed outwardly so as to fit tightly against the inner surface of the outer casing l.
- This operation may be easily accomplished and when the spear is then withdrawn from the well the upper end of the pipe 2 will be sealed into close connection with the outer casing l by a fluid tight joint, which cannot be easily mutilated or destroyed.
- My packer is intended for 'use wherever a joint is to be made between a pipe or casing already in the well and a pipe or casing of smaller diameter fitting inside thereof.
- a packer for well casing comprising a ytubular melnber of tough ductile metal ila red outwardly on the upper portion and thr ⁇ ad ed at the lower end for attachment to a pipe and an outer sleeve ofy soft metal.
- a packer for well casing comprising a tubular member cylindri al at the lower end and threaded for attachment to a pipe, the upper portion being flared outwardly, and a tight fitting sleeve of soft metal outside said tubular member.
- a packer comprising a tubular member flared outwardly at its upper end and having an external bead thereon, a ring on the outer surface of said tubular member, and a soft metal sleeve between said ring and bead for the purpose described.
- a packer comprising a tubular member of ductile material, a sleeve of'soft metal on said tubular member, the outer surface of said sleeve being cylindrical, means to retain said sleeve on said member and means to protect the upper end of said sleeve.
- an outer casing an inner casing of smaller diameter, a coupling on said inner casing.
- a packer thereon comprising an inner tubular member, a. ring around said tubular member above said coupling.
- a sleeve of compressible material on said tubular member and resting on said ring. and means on said tubular member to protect said sleeve.
- a tubular member In a. device of the character described. a tubular member. a bead thereon. a lead sleeve on said tubular member below said bead. and means to retain said sleeve on said member.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
H. W. FLETCHER.-
WELL PACKER.
APPUCATION FILED NOV. 21,1919.
Patented Apr. l, M21
Ik; i
HAROLD W. FLETCHER, OF HOUSTON, TEXAS.
WELL-PACKER.
Specification of Letters Patent.
Patented Apr. 13, 1920.
Application led November 21, 1919. Serial No. 339,579.
To all whom t may concern.'
Be it known that I, HAROLD W. FLETCHER, a citizen of the United States, residing at Houston, Harris county, Texas, have invented a certain new and useful Improvement in Well-Packers, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.,
My invention relates to an improvement in packers to be used in drilling wells for water, oil, gas, etc., in earth, rock or similar formations. It has especial application to the making of a tight joint between pipes or casings of different diameter while the same are positioned within the well.
In the drilling of deep wells, especially in the oil industry, it is customary to drill the well for some distance with a large sized bit, say one that will accommodate an 8 casing, and then to withdraw the bit and set the 8 casing in the hole, then to go down inside the 8 casing with a smaller bit and drill a continuationof the hole of smaller diameter, for example, one that will accommodate a 6 casing. After this hole hasv been drilled as deep as may be convenient, a 6 casing is set within the smaller hole at the bottomof the 8 casing and a still smaller bit is used to go down inside the 6 casing and continue the drilling of the hole with still smaller diameter. Between the lower end of the 8 casing and the upper end of the 6 casing, a packer is customarily used to close the space between the two sizes ol' casing and to make a tight joint between the two casings. The seal or packer ordinarily in use is quite liable to become injured and mutilated by Contact with the bit in drilling the continuation of the hole as the bit is withdrawn and inserted during the drilling operation-and the usual result is a broken seal which cannot'be easily repaired.
One object of my invention is to provide a packer, which. may be used between the different sizes of casings used in well drilling, and which will be strong and durable and not easily mutilated or broken.
Another object is to provide a packer for the purpose described which will be simple of construction and cheap to manufacture and also easily installed in the well.
With these and other objects in view, which will more clearly appear in the depacker when the scription which follows, reference is now made to the drawings forming a part of this specification for a more detailed description thereof'.
Figure 1 is a central longitudinal section showing the means of installing my device in the well; and l Fig. 2 is a similar section showing the means for setting my improved packer in the well so as to make a tight joint between the different sizes of casing.
In the drawing I have shown my device as used with an outer casing l of large diameter. Inside of the casing l is a casing 2 of smaller diameter which is adapted to extend downwardly through the larger casing and to be seated wlthin the smaller diameter of the hole below the larger casing. It is understood that the outer casing is seated at its lower end on the bottom of the larger hole and that a hole of smaller diameter has been drilled downwardly through the outer casing as far as desirable and that the smaller casing 2 is then lowered downwardly through the larger casing into the smaller extension of the hole, the walls of which it is adapted to support.
At the point in the smaller casing where I desire a sealed connection to be made with the larger casing I connect by means of a coupling 3, a packer 4, compiising a short length of tubing flared outwardly at its upper end 5 and having a slight outwardly extending flange or bead 6. This packer is threaded on its interior throat near the lower end thereof at 7 with a lefthand thread for thc purposes of attachment to a pipe 8 reduced in diameter at its lower end and threaded to cooperate with the same in introduced into the well.
Outside of the packer tube 4 is a tubular sealing sleeve 9 adapted to be forced outwardly by the expansion of the tube 4- to close the space between the said tube and the outer casing. The said sealing 'sleeve 9 is seated at its lower end upon a ring or washer l0 which rests upon the upper end of' the coupling 3 and support.; the Isealing sleeve in position. The said sleeve 9 is reduced in thickness by' beveling its inner diameter toward the upper end so that it fits closely around the packing tube 4. The outer surface of the seal member n ill thus be cylindrical, the upper end of the sealing sleeve fitting closely below the bead 6 at the upper end of the tube l. The sealing sleeve 9 may be made of any soft material such as lead or other composition, which is adapted to be compressed between the inner tube and the outer casing and thus form a tight seal. The inner tube l is made of a tough and ductile metal such as flange steel, copper, bronze .Lor other similar metal which will be adapted to withstand blows and the rough usage to which it is subjected, but is at the same time adapted to be pressed outwardly to close the space between the packer and the casing and compress the sealing sleeve 9 tightly between the tube and the casing.
rl`he manner in which my device may be installed will be about as follows: When the larger casing l has been seated within the hole and the hole has been extended with a Smaller diameter bit to the required distance, then the next casing 2 is let down within the lower end of the hole preparatory to Sealing the space between the lower end of the larger casing and the upper end of the smaller casing. For this purpose the upper end of the tube 2 is connected to my packing tube 4 with the sealing sleeve 9 in position thereon, as shown in Fig. l of the drawing. The lower end of the pipe 8 is then attached to the packer by means of the threaded portion 7 and the device is lowered into the hole until the smaller casing rests upon the bottom thereof. The pipe 8 is then given a righthand turn, thus operating'to unscrew the lefthand thread 7 and release the pipe 8 which, is then withdrawn from the hole. The purpose of. forming the thread 7 in a lefthand direction is now obvious, as it enables the pipe 8 to be released from the upper end of the casing 2 and the attached packer, by a righthand turn, which would only serve, if communicated to the pipe 2. and the parts connected therewith, to tighten the same and thus avoid the loosening of the joints in the pipe already set.
When the pipe 8 has been withdrawn a spear 11 is attached to the lower end of the pipe by means of a coupling 12. This spear is tapered inwardly toward the lower end, as shown at 12,' and is of the proper size to fit within the upper end of the packer. By dropping the pipe and the spear attached thereto into the upper end of the packer by repeated strokes the ductile sleeve 5 and the sealing sleeve i) outside thereof will be wedged or jammed outwardly so as to fit tightly against the inner surface of the outer casing l. This operation may be easily accomplished and when the spear is then withdrawn from the well the upper end of the pipe 2 will be sealed into close connection with the outer casing l by a fluid tight joint, which cannot be easily mutilated or destroyed.
'l`hus when the smaller casing 2 is sealed in this manner to the next outer larger sized casing l, a bit may be introduced downwardly through the larger casing without injury to the seal. The cutters on the bit will usually hit the packer on the way down into the smaller casing but the bead G lits tightly over the upper end of the lead seal and the bit will be guided into the smaller continuation of the casing without mutilation thereof.
My packer is intended for 'use wherever a joint is to be made between a pipe or casing already in the well and a pipe or casing of smaller diameter fitting inside thereof.
Having thus described my invention what I claim as new and desire to protect by Letters Patent is:
l. A packer for well casing comprising a ytubular melnber of tough ductile metal ila red outwardly on the upper portion and thr \ad ed at the lower end for attachment to a pipe and an outer sleeve ofy soft metal.
2. A packer for well casing comprising a tubular member cylindri al at the lower end and threaded for attachment to a pipe, the upper portion being flared outwardly, and a tight fitting sleeve of soft metal outside said tubular member.
3. A packer comprising a tubular member flared outwardly at its upper end and having an external bead thereon, a ring on the outer surface of said tubular member, and a soft metal sleeve between said ring and bead for the purpose described.
4. A packer comprising a tubular member of ductile material, a sleeve of'soft metal on said tubular member, the outer surface of said sleeve being cylindrical, means to retain said sleeve on said member and means to protect the upper end of said sleeve.
In a device of the character described an outer casing, an inner casing of smaller diameter, a coupling on said inner casing. a packer thereon comprising an inner tubular member, a. ring around said tubular member above said coupling. a sleeve of compressible material on said tubular member and resting on said ring. and means on said tubular member to protect said sleeve.
6. In a. device of the character described. a tubular member. a bead thereon. a lead sleeve on said tubular member below said bead. and means to retain said sleeve on said member.
In testimony whereof. I hereunto atlix my signature. this the 12th day of November. A. D.. 1919.
lHAROLD W. FLETCI UCR.
Publications (1)
Publication Number | Publication Date |
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US1336738A true US1336738A (en) | 1920-04-13 |
Family
ID=3395207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US1336738D Expired - Lifetime US1336738A (en) | Well-packer |
Country Status (1)
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US (1) | US1336738A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3282346A (en) * | 1964-03-09 | 1966-11-01 | Baker Oil Tools Inc | Subsurface well packers |
US4273091A (en) * | 1978-09-28 | 1981-06-16 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines |
US4288082A (en) * | 1980-04-30 | 1981-09-08 | Otis Engineering Corporation | Well sealing system |
US4771828A (en) * | 1987-04-30 | 1988-09-20 | Cameron Iron Works, Usa, Inc. | Wellhead seals |
US4930577A (en) * | 1989-05-05 | 1990-06-05 | Charles Grantom | Well sealing apparatus and method |
US5033551A (en) * | 1990-05-25 | 1991-07-23 | Grantom Charles A | Well packer and method |
US5105879A (en) * | 1991-03-20 | 1992-04-21 | Baker Hughes Incorporated | Method and apparatus for sealing at a sliding interface |
US5311938A (en) * | 1992-05-15 | 1994-05-17 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
US5433269A (en) * | 1992-05-15 | 1995-07-18 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
US6530574B1 (en) * | 2000-10-06 | 2003-03-11 | Gary L. Bailey | Method and apparatus for expansion sealing concentric tubular structures |
US20040055760A1 (en) * | 2002-09-20 | 2004-03-25 | Nguyen Philip D. | Method and apparatus for forming an annular barrier in a wellbore |
WO2004074621A2 (en) * | 2003-02-20 | 2004-09-02 | Schlumberger Holdings Limited | System and method for maintaining zonal isolation in a wellbore |
US20050023003A1 (en) * | 2002-09-23 | 2005-02-03 | Echols Ralph H. | Annular isolators for tubulars in wellbores |
USRE42733E1 (en) | 2001-10-23 | 2011-09-27 | Halliburton Energy Services, Inc. | Wear-resistant, variable diameter expansion tool and expansion methods |
US8261842B2 (en) | 2009-12-08 | 2012-09-11 | Halliburton Energy Services, Inc. | Expandable wellbore liner system |
EP2817480A4 (en) * | 2012-02-21 | 2016-05-04 | Owen Oil Tools Lp | System and method for enhanced sealing of well tubulars |
US11478837B2 (en) * | 2019-02-25 | 2022-10-25 | Henry E. Rogers | Method and system for fabrication of a metal cup for creating an annular seal within a wellbore |
-
0
- US US1336738D patent/US1336738A/en not_active Expired - Lifetime
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3282346A (en) * | 1964-03-09 | 1966-11-01 | Baker Oil Tools Inc | Subsurface well packers |
US4273091A (en) * | 1978-09-28 | 1981-06-16 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines |
US4288082A (en) * | 1980-04-30 | 1981-09-08 | Otis Engineering Corporation | Well sealing system |
US4771828A (en) * | 1987-04-30 | 1988-09-20 | Cameron Iron Works, Usa, Inc. | Wellhead seals |
US4930577A (en) * | 1989-05-05 | 1990-06-05 | Charles Grantom | Well sealing apparatus and method |
US5033551A (en) * | 1990-05-25 | 1991-07-23 | Grantom Charles A | Well packer and method |
US5105879A (en) * | 1991-03-20 | 1992-04-21 | Baker Hughes Incorporated | Method and apparatus for sealing at a sliding interface |
US5311938A (en) * | 1992-05-15 | 1994-05-17 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
US5433269A (en) * | 1992-05-15 | 1995-07-18 | Halliburton Company | Retrievable packer for high temperature, high pressure service |
US6530574B1 (en) * | 2000-10-06 | 2003-03-11 | Gary L. Bailey | Method and apparatus for expansion sealing concentric tubular structures |
USRE42733E1 (en) | 2001-10-23 | 2011-09-27 | Halliburton Energy Services, Inc. | Wear-resistant, variable diameter expansion tool and expansion methods |
US20040055760A1 (en) * | 2002-09-20 | 2004-03-25 | Nguyen Philip D. | Method and apparatus for forming an annular barrier in a wellbore |
US20070114018A1 (en) * | 2002-09-23 | 2007-05-24 | Halliburton Energy Services, Inc. | Annular Isolators for Expandable Tubulars in Wellbores |
US7320367B2 (en) | 2002-09-23 | 2008-01-22 | Halliburton Energy Services, Inc. | Annular isolators for expandable tubulars in wellbores |
US20050092485A1 (en) * | 2002-09-23 | 2005-05-05 | Brezinski Michael M. | Annular isolators for expandable tubulars in wellbores |
US7216706B2 (en) | 2002-09-23 | 2007-05-15 | Halliburton Energy Services, Inc. | Annular isolators for tubulars in wellbores |
USRE41118E1 (en) | 2002-09-23 | 2010-02-16 | Halliburton Energy Services, Inc. | Annular isolators for expandable tubulars in wellbores |
US20070114016A1 (en) * | 2002-09-23 | 2007-05-24 | Halliburton Energy Services, Inc. | Annular Isolators for Expandable Tubulars in Wellbores |
US20070114017A1 (en) * | 2002-09-23 | 2007-05-24 | Halliburton Energy Services, Inc. | Annular Isolators for Expandable Tubulars in Wellbores |
US20070114044A1 (en) * | 2002-09-23 | 2007-05-24 | Halliburton Energy Services, Inc. | Annular Isolators for Expandable Tubulars in Wellbores |
US7252142B2 (en) | 2002-09-23 | 2007-08-07 | Halliburton Energy Services, Inc. | Annular isolators for expandable tubulars in wellbores |
US20070267201A1 (en) * | 2002-09-23 | 2007-11-22 | Halliburton Energy Services, Inc. | Annular Isolators for Expandable Tubulars in Wellbores |
US7299882B2 (en) | 2002-09-23 | 2007-11-27 | Halliburton Energy Services, Inc. | Annular isolators for expandable tubulars in wellbores |
US20050023003A1 (en) * | 2002-09-23 | 2005-02-03 | Echols Ralph H. | Annular isolators for tubulars in wellbores |
US7363986B2 (en) | 2002-09-23 | 2008-04-29 | Halliburton Energy Services, Inc. | Annular isolators for expandable tubulars in wellbores |
US7404437B2 (en) | 2002-09-23 | 2008-07-29 | Halliburton Energy Services, Inc. | Annular isolators for expandable tubulars in wellbores |
US20080251250A1 (en) * | 2002-09-23 | 2008-10-16 | Halliburton Energy Services, Inc. | Annular Isolators for Expandable Tubulars in Wellbores |
WO2004074621A3 (en) * | 2003-02-20 | 2004-11-18 | Schlumberger Holdings | System and method for maintaining zonal isolation in a wellbore |
US7669653B2 (en) | 2003-02-20 | 2010-03-02 | Schlumberger Technology Corporation | System and method for maintaining zonal isolation in a wellbore |
WO2004074621A2 (en) * | 2003-02-20 | 2004-09-02 | Schlumberger Holdings Limited | System and method for maintaining zonal isolation in a wellbore |
US8261842B2 (en) | 2009-12-08 | 2012-09-11 | Halliburton Energy Services, Inc. | Expandable wellbore liner system |
EP2817480A4 (en) * | 2012-02-21 | 2016-05-04 | Owen Oil Tools Lp | System and method for enhanced sealing of well tubulars |
US11478837B2 (en) * | 2019-02-25 | 2022-10-25 | Henry E. Rogers | Method and system for fabrication of a metal cup for creating an annular seal within a wellbore |
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