[go: up one dir, main page]

GB2390628B - Wellbore casing repair - Google Patents

Wellbore casing repair

Info

Publication number
GB2390628B
GB2390628B GB0324174A GB0324174A GB2390628B GB 2390628 B GB2390628 B GB 2390628B GB 0324174 A GB0324174 A GB 0324174A GB 0324174 A GB0324174 A GB 0324174A GB 2390628 B GB2390628 B GB 2390628B
Authority
GB
United Kingdom
Prior art keywords
wellbore casing
casing repair
repair
wellbore
casing
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 - Fee Related
Application number
GB0324174A
Other versions
GB0324174D0 (en
GB2390628A (en
Inventor
Robert Lance Cook
David Paul Brisco
R Bruce Stewart
Reece Edward Wyant
Lev Ring
James Jang Woo Nahm
Richard Carl Haut
Robert Donald Mack
Alan B Duell
Andrei Gregory Filippov
Kenneth Michael Cowan
William Joseph Dean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell USA Inc
Original Assignee
Shell Oil Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shell Oil Co filed Critical Shell Oil Co
Priority claimed from GB0212443A external-priority patent/GB2374622B/en
Publication of GB0324174D0 publication Critical patent/GB0324174D0/en
Publication of GB2390628A publication Critical patent/GB2390628A/en
Application granted granted Critical
Publication of GB2390628B publication Critical patent/GB2390628B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00Cutting 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
    • E21B29/10Reconditioning of well casings, e.g. straightening
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02Subsoil filtering
    • E21B43/10Setting of casings, screens, liners or the like in wells
    • E21B43/103Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/105Expanding tools specially adapted therefor

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)
  • Pipe Accessories (AREA)
GB0324174A 1999-11-01 2000-10-31 Wellbore casing repair Expired - Fee Related GB2390628B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16267199P 1999-11-01 1999-11-01
GB0212443A GB2374622B (en) 1999-11-01 2000-10-31 Wellbore casing repair

Publications (3)

Publication Number Publication Date
GB0324174D0 GB0324174D0 (en) 2003-11-19
GB2390628A GB2390628A (en) 2004-01-14
GB2390628B true GB2390628B (en) 2004-03-17

Family

ID=29720874

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0324172A Expired - Fee Related GB2390387B (en) 1999-11-01 2000-10-31 Wellbore casing repair
GB0324174A Expired - Fee Related GB2390628B (en) 1999-11-01 2000-10-31 Wellbore casing repair

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0324172A Expired - Fee Related GB2390387B (en) 1999-11-01 2000-10-31 Wellbore casing repair

Country Status (1)

Country Link
GB (2) GB2390387B (en)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6976541B2 (en) 2000-09-18 2005-12-20 Shell Oil Company Liner hanger with sliding sleeve valve
US7011161B2 (en) 1998-12-07 2006-03-14 Shell Oil Company Structural support
US7021390B2 (en) 1998-12-07 2006-04-04 Shell Oil Company Tubular liner for wellbore casing
US7040396B2 (en) 1999-02-26 2006-05-09 Shell Oil Company Apparatus for releasably coupling two elements
US7044218B2 (en) 1998-12-07 2006-05-16 Shell Oil Company Apparatus for radially expanding tubular members
US7048067B1 (en) 1999-11-01 2006-05-23 Shell Oil Company Wellbore casing repair
US7055608B2 (en) 1999-03-11 2006-06-06 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
US7077211B2 (en) 1998-12-07 2006-07-18 Shell Oil Company Method of creating a casing in a borehole
US7100684B2 (en) 2000-07-28 2006-09-05 Enventure Global Technology Liner hanger with standoffs
US7100685B2 (en) 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
US7147053B2 (en) 1998-12-07 2006-12-12 Shell Oil Company Wellhead
US7168496B2 (en) 2001-07-06 2007-01-30 Eventure Global Technology Liner hanger
US7172024B2 (en) 2000-10-02 2007-02-06 Shell Oil Company Mono-diameter wellbore casing
US7185710B2 (en) 1998-12-07 2007-03-06 Enventure Global Technology Mono-diameter wellbore casing
US7195064B2 (en) 1998-12-07 2007-03-27 Enventure Global Technology Mono-diameter wellbore casing
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
US7243731B2 (en) 2001-08-20 2007-07-17 Enventure Global Technology Apparatus for radially expanding tubular members including a segmented expansion cone
US7246667B2 (en) 1998-11-16 2007-07-24 Shell Oil Company Radial expansion of tubular members
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
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
US7308755B2 (en) 2003-06-13 2007-12-18 Shell Oil Company Apparatus for forming a mono-diameter wellbore casing
US7325602B2 (en) 2000-10-02 2008-02-05 Shell Oil Company Method and apparatus for forming a 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
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
US7377326B2 (en) 2002-08-23 2008-05-27 Enventure Global Technology, L.L.C. Magnetic impulse applied sleeve method of forming a wellbore casing
US7383889B2 (en) 2001-11-12 2008-06-10 Enventure Global Technology, Llc Mono diameter wellbore casing
US7398832B2 (en) 2002-06-10 2008-07-15 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7404444B2 (en) 2002-09-20 2008-07-29 Enventure Global Technology Protective sleeve for expandable tubulars
US7410000B2 (en) 2001-01-17 2008-08-12 Enventure Global Technology, Llc. Mono-diameter wellbore casing
US7416027B2 (en) 2001-09-07 2008-08-26 Enventure Global Technology, Llc Adjustable expansion cone assembly
US7424918B2 (en) 2002-08-23 2008-09-16 Enventure Global Technology, L.L.C. Interposed joint sealing layer method of forming a wellbore casing
US7438133B2 (en) 2003-02-26 2008-10-21 Enventure Global Technology, Llc Apparatus and method for radially expanding and plastically deforming a tubular member
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
US7516790B2 (en) 1999-12-03 2009-04-14 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7546881B2 (en) 2001-09-07 2009-06-16 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7552776B2 (en) 1998-12-07 2009-06-30 Enventure Global Technology, Llc Anchor hangers
US7571774B2 (en) 2002-09-20 2009-08-11 Eventure Global Technology Self-lubricating expansion mandrel for expandable tubular
US7603758B2 (en) 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
US7740076B2 (en) 2002-04-12 2010-06-22 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
US7739917B2 (en) 2002-09-20 2010-06-22 Enventure Global Technology, Llc Pipe formability evaluation for expandable tubulars
US7775290B2 (en) 2003-04-17 2010-08-17 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7793721B2 (en) 2003-03-11 2010-09-14 Eventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7819185B2 (en) 2004-08-13 2010-10-26 Enventure Global Technology, Llc Expandable tubular
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
US7918284B2 (en) 2002-04-15 2011-04-05 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0109711D0 (en) * 2001-04-20 2001-06-13 E Tech Ltd Apparatus
US7090006B2 (en) * 2002-11-05 2006-08-15 Conocophillips Company Replaceable liner for metal lined composite risers in offshore applications
GB2440858A (en) * 2005-10-13 2008-02-13 Enventure Global Technology Fluid expansion of liner into contact with existing tubular
RU2494222C1 (en) * 2012-10-17 2013-09-27 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Well repair method
CN113006725B (en) * 2021-04-19 2022-08-26 东北石油大学 Rolling shaping mechanism and sleeve shaping tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000626A1 (en) * 1996-07-01 1998-01-08 Shell Internationale Research Maatschappij B.V. Method for expanding a steel tubing and well with such a tubing
WO2001018354A1 (en) * 1999-09-06 2001-03-15 E2Tech Limited Apparatus for and method of anchoring a first conduit to a second conduit
GB2356651A (en) * 1998-12-07 2001-05-30 Shell Int Research An expansion mandrel having a lubricating and self-cleaning system
GB2373524A (en) * 1999-10-12 2002-09-25 Enventure Global Technology Lubricant coating for expandable tubular members

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000626A1 (en) * 1996-07-01 1998-01-08 Shell Internationale Research Maatschappij B.V. Method for expanding a steel tubing and well with such a tubing
GB2356651A (en) * 1998-12-07 2001-05-30 Shell Int Research An expansion mandrel having a lubricating and self-cleaning system
WO2001018354A1 (en) * 1999-09-06 2001-03-15 E2Tech Limited Apparatus for and method of anchoring a first conduit to a second conduit
GB2373524A (en) * 1999-10-12 2002-09-25 Enventure Global Technology Lubricant coating for expandable tubular members

Cited By (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7231985B2 (en) 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US7246667B2 (en) 1998-11-16 2007-07-24 Shell Oil Company Radial expansion of tubular members
US7270188B2 (en) 1998-11-16 2007-09-18 Shell Oil Company Radial expansion of tubular members
US7275601B2 (en) 1998-11-16 2007-10-02 Shell Oil Company Radial expansion of tubular members
US7299881B2 (en) 1998-11-16 2007-11-27 Shell Oil Company Radial expansion of tubular members
US7357190B2 (en) 1998-11-16 2008-04-15 Shell Oil Company Radial expansion of tubular members
US7108072B2 (en) 1998-11-16 2006-09-19 Shell Oil Company Lubrication and self-cleaning system for expansion mandrel
US7552776B2 (en) 1998-12-07 2009-06-30 Enventure Global Technology, Llc Anchor hangers
US7350564B2 (en) 1998-12-07 2008-04-01 Enventure Global Technology, L.L.C. Mono-diameter wellbore casing
US7434618B2 (en) 1998-12-07 2008-10-14 Shell Oil Company Apparatus for expanding a tubular member
US7419009B2 (en) 1998-12-07 2008-09-02 Shell Oil Company Apparatus for radially expanding and plastically deforming a tubular member
US7077211B2 (en) 1998-12-07 2006-07-18 Shell Oil Company Method of creating a casing in a borehole
US7077213B2 (en) 1998-12-07 2006-07-18 Shell Oil Company Expansion cone for radially expanding tubular members
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
US7357188B1 (en) 1998-12-07 2008-04-15 Shell Oil Company Mono-diameter wellbore casing
US7044218B2 (en) 1998-12-07 2006-05-16 Shell Oil Company Apparatus for radially expanding tubular members
US7108061B2 (en) 1998-12-07 2006-09-19 Shell Oil Company Expander for a tapered liner with a shoe
US7121337B2 (en) 1998-12-07 2006-10-17 Shell Oil Company Apparatus for expanding a tubular member
US7603758B2 (en) 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
US7147053B2 (en) 1998-12-07 2006-12-12 Shell Oil Company Wellhead
US7048062B2 (en) 1998-12-07 2006-05-23 Shell Oil Company Method of selecting tubular members
US7159665B2 (en) 1998-12-07 2007-01-09 Shell Oil Company Wellbore casing
US7665532B2 (en) 1998-12-07 2010-02-23 Shell Oil Company Pipeline
US7036582B2 (en) 1998-12-07 2006-05-02 Shell Oil Company Expansion cone for radially expanding tubular members
US7021390B2 (en) 1998-12-07 2006-04-04 Shell Oil Company Tubular liner for wellbore casing
US7011161B2 (en) 1998-12-07 2006-03-14 Shell Oil Company Structural support
US7174964B2 (en) 1998-12-07 2007-02-13 Shell Oil Company Wellhead with radially expanded tubulars
US7185710B2 (en) 1998-12-07 2007-03-06 Enventure Global Technology Mono-diameter wellbore casing
US7195061B2 (en) 1998-12-07 2007-03-27 Shell Oil Company Apparatus for expanding a tubular member
US7195064B2 (en) 1998-12-07 2007-03-27 Enventure Global Technology Mono-diameter wellbore casing
US7198100B2 (en) 1998-12-07 2007-04-03 Shell Oil Company Apparatus for expanding a tubular member
US7240728B2 (en) 1998-12-07 2007-07-10 Shell Oil Company Expandable tubulars with a radial passage and wall portions with different wall thicknesses
US7240729B2 (en) 1998-12-07 2007-07-10 Shell Oil Company Apparatus for expanding a tubular member
US7216701B2 (en) 1998-12-07 2007-05-15 Shell Oil Company Apparatus for expanding a tubular member
US7159667B2 (en) 1999-02-25 2007-01-09 Shell Oil Company Method of coupling a tubular member to a preexisting structure
US7063142B2 (en) 1999-02-26 2006-06-20 Shell Oil Company Method of applying an axial force to an expansion cone
US7040396B2 (en) 1999-02-26 2006-05-09 Shell Oil Company Apparatus for releasably coupling two elements
US7044221B2 (en) 1999-02-26 2006-05-16 Shell Oil Company Apparatus for coupling a tubular member to a preexisting structure
US7556092B2 (en) 1999-02-26 2009-07-07 Enventure Global Technology, Llc Flow control system for an apparatus for radially expanding tubular members
US7438132B2 (en) 1999-03-11 2008-10-21 Shell Oil Company Concentric pipes expanded at the pipe ends and method of forming
US7055608B2 (en) 1999-03-11 2006-06-06 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
US7350563B2 (en) 1999-07-09 2008-04-01 Enventure Global Technology, L.L.C. System for lining a wellbore casing
US7048067B1 (en) 1999-11-01 2006-05-23 Shell Oil Company Wellbore casing repair
US7516790B2 (en) 1999-12-03 2009-04-14 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7234531B2 (en) 1999-12-03 2007-06-26 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7100684B2 (en) 2000-07-28 2006-09-05 Enventure Global Technology Liner hanger with standoffs
US7172021B2 (en) 2000-09-18 2007-02-06 Shell Oil Company Liner hanger with sliding sleeve valve
US6976541B2 (en) 2000-09-18 2005-12-20 Shell Oil Company Liner hanger with sliding sleeve valve
US7325602B2 (en) 2000-10-02 2008-02-05 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7204007B2 (en) 2000-10-02 2007-04-17 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7146702B2 (en) 2000-10-02 2006-12-12 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7100685B2 (en) 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
US7172019B2 (en) 2000-10-02 2007-02-06 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7363690B2 (en) 2000-10-02 2008-04-29 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7172024B2 (en) 2000-10-02 2007-02-06 Shell Oil Company Mono-diameter wellbore casing
US7201223B2 (en) 2000-10-02 2007-04-10 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7410000B2 (en) 2001-01-17 2008-08-12 Enventure Global Technology, Llc. Mono-diameter wellbore casing
US7168496B2 (en) 2001-07-06 2007-01-30 Eventure Global Technology Liner hanger
US7290616B2 (en) 2001-07-06 2007-11-06 Enventure Global Technology, L.L.C. Liner hanger
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
US7243731B2 (en) 2001-08-20 2007-07-17 Enventure Global Technology Apparatus for radially expanding tubular members including a segmented expansion cone
US7416027B2 (en) 2001-09-07 2008-08-26 Enventure Global Technology, Llc Adjustable expansion cone assembly
US7546881B2 (en) 2001-09-07 2009-06-16 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7383889B2 (en) 2001-11-12 2008-06-10 Enventure Global Technology, Llc Mono diameter wellbore casing
US7559365B2 (en) 2001-11-12 2009-07-14 Enventure Global Technology, Llc Collapsible expansion cone
US7290605B2 (en) 2001-12-27 2007-11-06 Enventure Global Technology Seal receptacle using expandable liner hanger
US7740076B2 (en) 2002-04-12 2010-06-22 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
US7918284B2 (en) 2002-04-15 2011-04-05 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
US7360591B2 (en) 2002-05-29 2008-04-22 Enventure Global Technology, Llc System for radially expanding a tubular member
US7398832B2 (en) 2002-06-10 2008-07-15 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7424918B2 (en) 2002-08-23 2008-09-16 Enventure Global Technology, L.L.C. Interposed joint sealing layer method of forming a wellbore casing
US7377326B2 (en) 2002-08-23 2008-05-27 Enventure Global Technology, L.L.C. Magnetic impulse applied sleeve method of forming a wellbore casing
US7571774B2 (en) 2002-09-20 2009-08-11 Eventure Global Technology Self-lubricating expansion mandrel for expandable tubular
US7404444B2 (en) 2002-09-20 2008-07-29 Enventure Global Technology Protective sleeve for expandable tubulars
US7739917B2 (en) 2002-09-20 2010-06-22 Enventure Global Technology, Llc Pipe formability evaluation for expandable tubulars
US7513313B2 (en) 2002-09-20 2009-04-07 Enventure Global Technology, Llc Bottom plug for forming a mono diameter wellbore casing
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
US7503393B2 (en) 2003-01-27 2009-03-17 Enventure Global Technology, Inc. Lubrication system for radially expanding tubular members
US7438133B2 (en) 2003-02-26 2008-10-21 Enventure Global Technology, Llc Apparatus and method for radially expanding and plastically deforming a tubular member
US7793721B2 (en) 2003-03-11 2010-09-14 Eventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7775290B2 (en) 2003-04-17 2010-08-17 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7308755B2 (en) 2003-06-13 2007-12-18 Shell Oil Company Apparatus for forming a mono-diameter wellbore casing
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
US7819185B2 (en) 2004-08-13 2010-10-26 Enventure Global Technology, Llc Expandable tubular

Also Published As

Publication number Publication date
GB0324174D0 (en) 2003-11-19
GB2390628A (en) 2004-01-14
GB2390387A (en) 2004-01-07
GB2390387B (en) 2004-04-07
GB0324172D0 (en) 2003-11-19

Similar Documents

Publication Publication Date Title
GB2374622B (en) Wellbore casing repair
GB2390387B (en) Wellbore casing repair
GB2348657B (en) Wellbore casing
GB2384804B (en) Wellbore casing
GB2380214B (en) Wellbore casing
GB2388134B (en) Mono-diameter wellbore casing
GB2390622B (en) Mono-diameter wellbore casing
GB2399580B (en) Mono-diameter wellbore casing
GB2398326B (en) Mono-diameter wellbore casing
GB2403971B (en) Mono-diameter wellbore casing
GB0418426D0 (en) Mono-diameter wellbore casing
GB0311596D0 (en) Mono-diameter wellbore casing
GB0412192D0 (en) Mono-diameter wellbore casing
GB0503470D0 (en) Mono-diameter wellbore casing
AU136757S (en) Casing

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20141113 AND 20141119

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20161031