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GB2397265B - Expanding a tubular member - Google Patents

Expanding a tubular member

Info

Publication number
GB2397265B
GB2397265B GB0404849A GB0404849A GB2397265B GB 2397265 B GB2397265 B GB 2397265B GB 0404849 A GB0404849 A GB 0404849A GB 0404849 A GB0404849 A GB 0404849A GB 2397265 B GB2397265 B GB 2397265B
Authority
GB
United Kingdom
Prior art keywords
expanding
tubular member
tubular
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
GB0404849A
Other versions
GB2397265A (en
GB0404849D0 (en
Inventor
Robert Lance Cook
David Paul Brisco
Bruce R Stewart
Lev Ring
Richard Carl Haut
Robert Donald Mack
Alan B Duell
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 GB0216409A external-priority patent/GB2373468B/en
Publication of GB0404849D0 publication Critical patent/GB0404849D0/en
Publication of GB2397265A publication Critical patent/GB2397265A/en
Application granted granted Critical
Publication of GB2397265B publication Critical patent/GB2397265B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • E21B43/105—Expanding tools specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • 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
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
GB0404849A 2000-02-18 2001-02-14 Expanding a tubular member Expired - Fee Related GB2397265B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18354600P 2000-02-18 2000-02-18
GB0216409A GB2373468B (en) 2000-02-18 2001-02-14 Expanding a tubular member

Publications (3)

Publication Number Publication Date
GB0404849D0 GB0404849D0 (en) 2004-04-07
GB2397265A GB2397265A (en) 2004-07-21
GB2397265B true GB2397265B (en) 2004-09-15

Family

ID=32599045

Family Applications (5)

Application Number Title Priority Date Filing Date
GB0404837A Expired - Lifetime GB2397261B (en) 2000-02-18 2001-02-14 Expanding a tubular member
GB0404845A Expired - Fee Related GB2397264B (en) 2000-02-18 2001-02-14 Expanding a tubular member
GB0404839A Expired - Fee Related GB2397262B (en) 2000-02-18 2001-02-14 Expanding a tubular member
GB0404849A Expired - Fee Related GB2397265B (en) 2000-02-18 2001-02-14 Expanding a tubular member
GB0404842A Expired - Fee Related GB2397263B (en) 2000-02-18 2001-02-14 Expanding a tubular member

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB0404837A Expired - Lifetime GB2397261B (en) 2000-02-18 2001-02-14 Expanding a tubular member
GB0404845A Expired - Fee Related GB2397264B (en) 2000-02-18 2001-02-14 Expanding a tubular member
GB0404839A Expired - Fee Related GB2397262B (en) 2000-02-18 2001-02-14 Expanding a tubular member

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0404842A Expired - Fee Related GB2397263B (en) 2000-02-18 2001-02-14 Expanding a tubular member

Country Status (1)

Country Link
GB (5) GB2397261B (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
US7100685B2 (en) 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
US7100684B2 (en) 2000-07-28 2006-09-05 Enventure Global Technology Liner hanger with standoffs
US7121352B2 (en) 1998-11-16 2006-10-17 Enventure Global Technology Isolation of subterranean zones
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
US7168499B2 (en) 1998-11-16 2007-01-30 Shell Oil Company Radial expansion of tubular members
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
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
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
US7552776B2 (en) 1998-12-07 2009-06-30 Enventure Global Technology, Llc Anchor hangers
US7559365B2 (en) 2001-11-12 2009-07-14 Enventure Global Technology, Llc Collapsible expansion cone
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
US7739917B2 (en) 2002-09-20 2010-06-22 Enventure Global Technology, Llc Pipe formability evaluation for expandable tubulars
US7740076B2 (en) 2002-04-12 2010-06-22 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344606A (en) * 1998-12-07 2000-06-14 Shell Int Research Wellbore casing with radially expanded liner extruded off a mandrel.
GB2361724A (en) * 1999-04-26 2001-10-31 Shell Int Research Wellbore casing with radially expanded liner extruded off of a mandrel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502308A (en) * 1982-01-22 1985-03-05 Haskel, Inc. Swaging apparatus having elastically deformable members with segmented supports
AU771884B2 (en) * 1999-02-11 2004-04-08 Shell Internationale Research Maatschappij B.V. Wellhead
JP2001047161A (en) * 1999-08-12 2001-02-20 Daido Steel Co Ltd Metal tube expansion method and expansion tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344606A (en) * 1998-12-07 2000-06-14 Shell Int Research Wellbore casing with radially expanded liner extruded off a mandrel.
GB2361724A (en) * 1999-04-26 2001-10-31 Shell Int Research Wellbore casing with radially expanded liner extruded off of a mandrel

Cited By (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7270188B2 (en) 1998-11-16 2007-09-18 Shell Oil Company Radial expansion of tubular members
US7246667B2 (en) 1998-11-16 2007-07-24 Shell Oil Company Radial expansion of tubular members
US7121352B2 (en) 1998-11-16 2006-10-17 Enventure Global Technology Isolation of subterranean zones
US7231985B2 (en) 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US7275601B2 (en) 1998-11-16 2007-10-02 Shell Oil Company Radial expansion of tubular members
US7168499B2 (en) 1998-11-16 2007-01-30 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
US7240729B2 (en) 1998-12-07 2007-07-10 Shell Oil Company Apparatus for expanding a tubular member
US7198100B2 (en) 1998-12-07 2007-04-03 Shell Oil Company Apparatus for expanding a tubular member
US7147053B2 (en) 1998-12-07 2006-12-12 Shell Oil Company Wellhead
US7077211B2 (en) 1998-12-07 2006-07-18 Shell Oil Company Method of creating a casing in a borehole
US7086475B2 (en) 1998-12-07 2006-08-08 Shell Oil Company Method of inserting a tubular member into a wellbore
US7419009B2 (en) 1998-12-07 2008-09-02 Shell Oil Company Apparatus for radially expanding and plastically deforming a tubular member
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
US7048062B2 (en) 1998-12-07 2006-05-23 Shell Oil Company Method of selecting tubular members
US7011161B2 (en) 1998-12-07 2006-03-14 Shell Oil Company Structural support
US7044218B2 (en) 1998-12-07 2006-05-16 Shell Oil Company Apparatus for radially expanding tubular members
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
US7434618B2 (en) 1998-12-07 2008-10-14 Shell Oil Company Apparatus for expanding a tubular member
US7159665B2 (en) 1998-12-07 2007-01-09 Shell Oil Company Wellbore casing
US7174964B2 (en) 1998-12-07 2007-02-13 Shell Oil Company Wellhead with radially expanded tubulars
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
US7603758B2 (en) 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
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
US7077213B2 (en) 1998-12-07 2006-07-18 Shell Oil Company Expansion cone for radially expanding tubular members
US7357188B1 (en) 1998-12-07 2008-04-15 Shell Oil Company 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
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
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
US7172024B2 (en) 2000-10-02 2007-02-06 Shell Oil Company 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
US7172019B2 (en) 2000-10-02 2007-02-06 Shell Oil Company Method and apparatus for forming a 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
US7363690B2 (en) 2000-10-02 2008-04-29 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7363691B2 (en) 2000-10-02 2008-04-29 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
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
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
GB2397264B (en) 2004-09-15
GB0404845D0 (en) 2004-04-07
GB2397265A (en) 2004-07-21
GB2397263B (en) 2004-09-15
GB0404849D0 (en) 2004-04-07
GB0404842D0 (en) 2004-04-07
GB2397261B (en) 2004-09-15
GB0404839D0 (en) 2004-04-07
GB2397263A (en) 2004-07-21
GB2397262B (en) 2004-09-15
GB2397264A (en) 2004-07-21
GB2397262A (en) 2004-07-21
GB2397261A (en) 2004-07-21
GB0404837D0 (en) 2004-04-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090214