WO1998009053A3 - Procede et appareil d'etancheite d'une jonction dans un puits multilateral - Google Patents
Procede et appareil d'etancheite d'une jonction dans un puits multilateral Download PDFInfo
- Publication number
- WO1998009053A3 WO1998009053A3 PCT/US1997/015275 US9715275W WO9809053A3 WO 1998009053 A3 WO1998009053 A3 WO 1998009053A3 US 9715275 W US9715275 W US 9715275W WO 9809053 A3 WO9809053 A3 WO 9809053A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- lateral
- junction
- well
- main
- 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.)
- Ceased
Links
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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
- E21B41/0042—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches characterised by sealing the junction between a lateral and a main bore
-
- 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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
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)
- Earth Drilling (AREA)
Abstract
Procédés et appareil de formation de puits multilatéraux et d'étanchéité de la jonction entre le trou de puits principal et un puits latéral. Dans un premier mode de réalisation de l'invention, une colonne de puits principal comprend des fenêtres ou des ouvertures formées dans ladite colonne. Un insert forable est positionné près de la fenêtre destinée au support lorsque le puits latéral est foré. La fenêtre est également remplie d'un matériau forable. Un second mode de réalisation de l'invention utilise des packers gonflables de tubages lesquels sont gonflés avec du ciment afin de former une jonction présentant une intégrité de pression de l'intérieur et de l'extérieur avec une ouverture latérale totale et un sondage principal limité uniquement par le diamètre intérieur des packers gonflables de tubage. Un troisième mode de réalisation de l'invention utilise un manchon d'étanchéité stratifié à l'ouverture du puits latéral. Un mandrin supérieur de colonne de raccordement est calé dans une ouverture se trouvant dans le manchon d'étanchéité stratifié. Le mandrin comprend un rebord au niveau de la partie supérieure et l'ajustement avec serrage entre le rebord et l'ouverture ménagée dans le manchon d'étanchéité forme un joint hydraulique entre le puits principal et le puits latéral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU43303/97A AU4330397A (en) | 1996-08-30 | 1997-08-29 | Method and apparatus for sealing a junction on a multilateral well |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2513996P | 1996-08-30 | 1996-08-30 | |
| US60/025,139 | 1996-08-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1998009053A2 WO1998009053A2 (fr) | 1998-03-05 |
| WO1998009053A3 true WO1998009053A3 (fr) | 1998-06-11 |
| WO1998009053A9 WO1998009053A9 (fr) | 1998-07-23 |
Family
ID=21824271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/015275 Ceased WO1998009053A2 (fr) | 1996-08-30 | 1997-08-29 | Procede et appareil d'etancheite d'une jonction dans un puits multilateral |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU4330397A (fr) |
| WO (1) | WO1998009053A2 (fr) |
Cited By (39)
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|---|---|---|---|---|
| US6892819B2 (en) | 1998-12-07 | 2005-05-17 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US6899186B2 (en) | 2002-12-13 | 2005-05-31 | Weatherford/Lamb, Inc. | Apparatus and method of drilling with casing |
| US6966370B2 (en) | 1999-02-26 | 2005-11-22 | Shell Oil Company | Apparatus for actuating an annular piston |
| US6976541B2 (en) | 2000-09-18 | 2005-12-20 | Shell Oil Company | Liner hanger with sliding sleeve valve |
| US6994176B2 (en) | 2002-07-29 | 2006-02-07 | Weatherford/Lamb, Inc. | Adjustable rotating guides for spider or elevator |
| US7004264B2 (en) | 2002-03-16 | 2006-02-28 | Weatherford/Lamb, Inc. | Bore lining and drilling |
| US7013997B2 (en) | 1994-10-14 | 2006-03-21 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7036610B1 (en) | 1994-10-14 | 2006-05-02 | Weatherford / Lamb, Inc. | Apparatus and method for completing oil and gas wells |
| US7044218B2 (en) | 1998-12-07 | 2006-05-16 | Shell Oil Company | Apparatus for radially expanding tubular members |
| US7048050B2 (en) | 1994-10-14 | 2006-05-23 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7077213B2 (en) | 1998-12-07 | 2006-07-18 | Shell Oil Company | Expansion cone for radially expanding tubular members |
| US7090021B2 (en) | 1998-08-24 | 2006-08-15 | Bernd-Georg Pietras | Apparatus for connecting tublars using a top drive |
| US7121352B2 (en) | 1998-11-16 | 2006-10-17 | Enventure Global Technology | Isolation of subterranean zones |
| US7168499B2 (en) | 1998-11-16 | 2007-01-30 | Shell Oil Company | Radial expansion of tubular members |
| US7188687B2 (en) | 1998-12-22 | 2007-03-13 | Weatherford/Lamb, Inc. | Downhole filter |
| US7207390B1 (en) | 2004-02-05 | 2007-04-24 | Cdx Gas, Llc | Method and system for lining multilateral wells |
| US7213656B2 (en) | 1998-12-24 | 2007-05-08 | Weatherford/Lamb, Inc. | Apparatus and method for facilitating the connection of tubulars using a top drive |
| US7216727B2 (en) | 1999-12-22 | 2007-05-15 | Weatherford/Lamb, Inc. | Drilling bit for drilling while running casing |
| US7219744B2 (en) | 1998-08-24 | 2007-05-22 | Weatherford/Lamb, Inc. | Method and apparatus for connecting tubulars using a top drive |
| US7231985B2 (en) | 1998-11-16 | 2007-06-19 | Shell Oil Company | Radial expansion of tubular members |
| US7234531B2 (en) | 1999-12-03 | 2007-06-26 | Enventure Global Technology, Llc | Mono-diameter wellbore casing |
| US7240728B2 (en) | 1998-12-07 | 2007-07-10 | Shell Oil Company | Expandable tubulars with a radial passage and wall portions with different wall thicknesses |
| US7267175B2 (en) | 2000-05-05 | 2007-09-11 | Weatherford/Lamb, Inc. | Apparatus and methods for forming a lateral wellbore |
| US7284617B2 (en) | 2004-05-20 | 2007-10-23 | Weatherford/Lamb, Inc. | Casing running head |
| US7290616B2 (en) | 2001-07-06 | 2007-11-06 | Enventure Global Technology, L.L.C. | Liner hanger |
| US7290605B2 (en) | 2001-12-27 | 2007-11-06 | Enventure Global Technology | Seal receptacle using expandable liner hanger |
| US7299864B2 (en) | 2004-12-22 | 2007-11-27 | Cdx Gas, Llc | Adjustable window liner |
| US7325610B2 (en) | 2000-04-17 | 2008-02-05 | Weatherford/Lamb, Inc. | Methods and apparatus for handling and drilling with tubulars or casing |
| US7350564B2 (en) | 1998-12-07 | 2008-04-01 | Enventure Global Technology, L.L.C. | Mono-diameter wellbore casing |
| US7350563B2 (en) | 1999-07-09 | 2008-04-01 | Enventure Global Technology, L.L.C. | System for lining a wellbore casing |
| US7360591B2 (en) | 2002-05-29 | 2008-04-22 | Enventure Global Technology, Llc | System for radially expanding a tubular member |
| US7363691B2 (en) | 2000-10-02 | 2008-04-29 | Shell Oil Company | Method and apparatus for forming a mono-diameter wellbore casing |
| US7370707B2 (en) | 2003-04-04 | 2008-05-13 | Weatherford/Lamb, Inc. | Method and apparatus for handling wellbore tubulars |
| US7373984B2 (en) | 2004-12-22 | 2008-05-20 | Cdx Gas, Llc | Lining well bore junctions |
| US7438132B2 (en) | 1999-03-11 | 2008-10-21 | Shell Oil Company | Concentric pipes expanded at the pipe ends and method of forming |
| US7503393B2 (en) | 2003-01-27 | 2009-03-17 | Enventure Global Technology, Inc. | Lubrication system for radially expanding tubular members |
| US7513313B2 (en) | 2002-09-20 | 2009-04-07 | Enventure Global Technology, Llc | Bottom plug for forming a mono diameter wellbore casing |
| US7552776B2 (en) | 1998-12-07 | 2009-06-30 | Enventure Global Technology, Llc | Anchor hangers |
| US7617866B2 (en) | 1998-08-24 | 2009-11-17 | Weatherford/Lamb, Inc. | Methods and apparatus for connecting tubulars using a top drive |
Families Citing this family (73)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7040420B2 (en) | 1994-10-14 | 2006-05-09 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7147068B2 (en) | 1994-10-14 | 2006-12-12 | Weatherford / Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7108084B2 (en) | 1994-10-14 | 2006-09-19 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7100710B2 (en) | 1994-10-14 | 2006-09-05 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7228901B2 (en) | 1994-10-14 | 2007-06-12 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US6547006B1 (en) | 1996-05-02 | 2003-04-15 | Weatherford/Lamb, Inc. | Wellbore liner system |
| US7509722B2 (en) | 1997-09-02 | 2009-03-31 | Weatherford/Lamb, Inc. | Positioning and spinning device |
| US6742596B2 (en) | 2001-05-17 | 2004-06-01 | Weatherford/Lamb, Inc. | Apparatus and methods for tubular makeup interlock |
| US6073697A (en) * | 1998-03-24 | 2000-06-13 | Halliburton Energy Services, Inc. | Lateral wellbore junction having displaceable casing blocking member |
| EP0961008B1 (fr) * | 1998-04-27 | 2006-12-13 | Schlumberger Holdings Limited | Dispositif et procédé pour forer et équiper un puits dévié |
| GB9815809D0 (en) | 1998-07-22 | 1998-09-16 | Appleton Robert P | Casing running tool |
| US6823937B1 (en) | 1998-12-07 | 2004-11-30 | Shell Oil Company | Wellhead |
| GB2344606B (en) | 1998-12-07 | 2003-08-13 | Shell Int Research | Forming a wellbore casing by expansion of a tubular member |
| US7363984B2 (en) | 1998-12-07 | 2008-04-29 | Enventure Global Technology, Llc | System for radially expanding a tubular member |
| CA2356194C (fr) | 1998-12-22 | 2007-02-27 | Weatherford/Lamb, Inc. | Procedes et materiel de faconnage et d'assemblage de tuyaux |
| GB2347441B (en) | 1998-12-24 | 2003-03-05 | Weatherford Lamb | Apparatus and method for facilitating the connection of tubulars using a top drive |
| US7311148B2 (en) | 1999-02-25 | 2007-12-25 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
| US6896075B2 (en) | 2002-10-11 | 2005-05-24 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling with casing |
| US6857487B2 (en) | 2002-12-30 | 2005-02-22 | Weatherford/Lamb, Inc. | Drilling with concentric strings of casing |
| CA2306656C (fr) | 1999-04-26 | 2006-06-06 | Shell Internationale Research Maatschappij B.V. | Connexion extensible |
| EG22205A (en) | 1999-08-09 | 2002-10-31 | Shell Int Research | Multilateral wellbore system |
| US7048067B1 (en) | 1999-11-01 | 2006-05-23 | Shell Oil Company | Wellbore casing repair |
| US6578630B2 (en) | 1999-12-22 | 2003-06-17 | Weatherford/Lamb, Inc. | Apparatus and methods for expanding tubulars in a wellbore |
| US7334650B2 (en) | 2000-04-13 | 2008-02-26 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling a wellbore using casing |
| GB0010378D0 (en) | 2000-04-28 | 2000-06-14 | Bbl Downhole Tools Ltd | Expandable apparatus for drift and reaming a borehole |
| US7100684B2 (en) | 2000-07-28 | 2006-09-05 | Enventure Global Technology | Liner hanger with standoffs |
| GB2365463B (en) | 2000-08-01 | 2005-02-16 | Renovus Ltd | Drilling method |
| WO2002053867A2 (fr) | 2001-01-03 | 2002-07-11 | Enventure Global Technology | Cuvelage de diamètre nanométrique pour puits foré |
| CA2419806A1 (fr) | 2000-10-02 | 2002-04-11 | Robert Lance Cook | Procede et appareil permettant de dilater un tubage de revetement |
| CA2453063C (fr) | 2001-07-06 | 2011-03-22 | Enventure Global Technology | Suspension de colonne perdue |
| US7258168B2 (en) | 2001-07-27 | 2007-08-21 | Enventure Global Technology L.L.C. | Liner hanger with slip joint sealing members and method of use |
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| WO2004018823A2 (fr) | 2002-08-23 | 2004-03-04 | Enventure Global Technology | Procede de formation d'un tubage d'un puits de forage par couche interposee de scellement de joint |
| BRPI0307686B1 (pt) | 2002-02-15 | 2015-09-08 | Enventure Global Technology | aparelho para formar um revestimento do furo de poço em um furo de sondagem, método e sistema para formar um revestimento de furo de poço em uma formação subterrânea, e, revestimento de furo de poço posicionado em um furo de sondagem dentro de uma formação subterrânea |
| US7000695B2 (en) | 2002-05-02 | 2006-02-21 | Halliburton Energy Services, Inc. | Expanding wellbore junction |
| GB2418942B (en) | 2002-06-10 | 2006-09-27 | Enventure Global Technology | Mono Diameter Wellbore Casing |
| AU2003258274A1 (en) | 2002-08-23 | 2004-03-11 | Enventure Global Technology | Magnetic impulse applied sleeve method of forming a wellbore casing |
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| US7096982B2 (en) | 2003-02-27 | 2006-08-29 | Weatherford/Lamb, Inc. | Drill shoe |
| GB2439427B (en) | 2003-03-05 | 2008-02-13 | Weatherford Lamb | Casing running and drilling system |
| WO2004079147A2 (fr) | 2003-03-05 | 2004-09-16 | Weatherford/Lamb, Inc. | Procede et dispositif de forage avec cuvelage |
| WO2004079150A2 (fr) | 2003-03-05 | 2004-09-16 | Weatherford/Lamb, Inc. | Puits de forage tubes a passage integral |
| CA2517978C (fr) | 2003-03-05 | 2009-07-14 | Weatherford/Lamb, Inc. | Forage effectue a l'aide d'un verrou de tubage |
| US20050166387A1 (en) | 2003-06-13 | 2005-08-04 | Cook Robert L. | Method and apparatus for forming a mono-diameter wellbore casing |
| US7712522B2 (en) | 2003-09-05 | 2010-05-11 | Enventure Global Technology, Llc | Expansion cone and system |
| US7264067B2 (en) | 2003-10-03 | 2007-09-04 | Weatherford/Lamb, Inc. | Method of drilling and completing multiple wellbores inside a single caisson |
| CA2514136C (fr) | 2004-07-30 | 2011-09-13 | Weatherford/Lamb, Inc. | Dispositif et methodes de mise en place et de recuperation de cuvelage avec verrouillage de forage et ensemble de fond de trou |
| GB2432866A (en) | 2004-08-13 | 2007-06-06 | Enventure Global Technology | Expandable tubular |
| US9260921B2 (en) | 2008-05-20 | 2016-02-16 | Halliburton Energy Services, Inc. | System and methods for constructing and fracture stimulating multiple ultra-short radius laterals from a parent well |
| US7703524B2 (en) | 2008-05-21 | 2010-04-27 | Halliburton Energy Services, Inc. | Cutting windows for lateral wellbore drilling |
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| CN101818619B (zh) * | 2010-03-24 | 2012-07-11 | 中国石油集团川庆钻探工程有限公司 | 暂封口开孔套管分支井固井完井结构及工艺 |
| US8505621B2 (en) | 2010-03-30 | 2013-08-13 | Halliburton Energy Services, Inc. | Well assembly with recesses facilitating branch wellbore creation |
| US8371368B2 (en) | 2010-03-31 | 2013-02-12 | Halliburton Energy Services, Inc. | Well assembly with a millable member in an opening |
| US9234613B2 (en) | 2010-05-28 | 2016-01-12 | Halliburton Energy Services, Inc. | Well assembly coupling |
| EP2469012B1 (fr) * | 2010-12-22 | 2013-09-04 | Welltec A/S | Ensemble formant jonction latérale |
| CN102230359A (zh) * | 2011-07-01 | 2011-11-02 | 河南省瓦斯治理研究院有限公司 | 零半径高压水力水平钻进方法 |
| US8967266B2 (en) | 2012-02-24 | 2015-03-03 | Halliburton Energy Services, Inc. | Protection of casing lowside while milling casing exit |
| RU2724174C1 (ru) | 2017-04-29 | 2020-06-22 | Халлибертон Энерджи Сервисез, Инк. | Усовершенствованный способ и устройство для герметизированных соединений многоствольных скважин |
| US11434704B2 (en) | 2020-12-18 | 2022-09-06 | Baker Hughes Oilfield Operations Llc | Alternate path for borehole junction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5388648A (en) * | 1993-10-08 | 1995-02-14 | Baker Hughes Incorporated | Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means |
| EP0701045A2 (fr) * | 1994-08-26 | 1996-03-13 | Halliburton Company | Procédé et dispositif de forage et d'équipement d'un puits comportant plusieurs forages latéraux |
| US5526880A (en) * | 1994-09-15 | 1996-06-18 | Baker Hughes Incorporated | Method for multi-lateral completion and cementing the juncture with lateral wellbores |
-
1997
- 1997-08-29 AU AU43303/97A patent/AU4330397A/en not_active Abandoned
- 1997-08-29 WO PCT/US1997/015275 patent/WO1998009053A2/fr not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5388648A (en) * | 1993-10-08 | 1995-02-14 | Baker Hughes Incorporated | Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means |
| EP0701045A2 (fr) * | 1994-08-26 | 1996-03-13 | Halliburton Company | Procédé et dispositif de forage et d'équipement d'un puits comportant plusieurs forages latéraux |
| US5526880A (en) * | 1994-09-15 | 1996-06-18 | Baker Hughes Incorporated | Method for multi-lateral completion and cementing the juncture with lateral wellbores |
Cited By (46)
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|---|---|---|---|---|
| US7165634B2 (en) | 1994-10-14 | 2007-01-23 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7013997B2 (en) | 1994-10-14 | 2006-03-21 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7036610B1 (en) | 1994-10-14 | 2006-05-02 | Weatherford / Lamb, Inc. | Apparatus and method for completing oil and gas wells |
| US7048050B2 (en) | 1994-10-14 | 2006-05-23 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7090021B2 (en) | 1998-08-24 | 2006-08-15 | Bernd-Georg Pietras | Apparatus for connecting tublars using a top drive |
| US7617866B2 (en) | 1998-08-24 | 2009-11-17 | Weatherford/Lamb, Inc. | Methods and apparatus for connecting tubulars using a top drive |
| US7219744B2 (en) | 1998-08-24 | 2007-05-22 | Weatherford/Lamb, Inc. | Method and apparatus for connecting tubulars using a top drive |
| US7231985B2 (en) | 1998-11-16 | 2007-06-19 | Shell Oil Company | Radial expansion of tubular members |
| US7168499B2 (en) | 1998-11-16 | 2007-01-30 | Shell Oil Company | Radial expansion of tubular members |
| US7121352B2 (en) | 1998-11-16 | 2006-10-17 | Enventure Global Technology | Isolation of subterranean zones |
| US7077213B2 (en) | 1998-12-07 | 2006-07-18 | Shell Oil Company | Expansion cone for radially expanding tubular members |
| US7240728B2 (en) | 1998-12-07 | 2007-07-10 | Shell Oil Company | Expandable tubulars with a radial passage and wall portions with different wall thicknesses |
| US7086475B2 (en) | 1998-12-07 | 2006-08-08 | Shell Oil Company | Method of inserting a tubular member into a wellbore |
| US7048062B2 (en) | 1998-12-07 | 2006-05-23 | Shell Oil Company | Method of selecting tubular members |
| US7044218B2 (en) | 1998-12-07 | 2006-05-16 | Shell Oil Company | Apparatus for radially expanding tubular members |
| US7121337B2 (en) | 1998-12-07 | 2006-10-17 | Shell Oil Company | Apparatus for expanding a tubular member |
| US7350564B2 (en) | 1998-12-07 | 2008-04-01 | Enventure Global Technology, L.L.C. | Mono-diameter wellbore casing |
| US7552776B2 (en) | 1998-12-07 | 2009-06-30 | Enventure Global Technology, Llc | Anchor hangers |
| US6892819B2 (en) | 1998-12-07 | 2005-05-17 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US7240729B2 (en) | 1998-12-07 | 2007-07-10 | Shell Oil Company | Apparatus for expanding a tubular member |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO1998009053A2 (fr) | 1998-03-05 |
| AU4330397A (en) | 1998-03-19 |
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