GB2320270B - Downhole tool - Google Patents

Downhole tool

Info

Publication number
GB2320270B
GB2320270B GB9725821A GB9725821A GB2320270B GB 2320270 B GB2320270 B GB 2320270B GB 9725821 A GB9725821 A GB 9725821A GB 9725821 A GB9725821 A GB 9725821A GB 2320270 B GB2320270 B GB 2320270B
Authority
GB
United Kingdom
Prior art keywords
downhole tool
downhole
tool
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
Application number
GB9725821A
Other versions
GB2320270A (en
GB2320270A8 (en
GB9725821D0 (en
Inventor
Richard Alvin Armell
Giancarlo Tomasso
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.)
PSL TECHNOLOGY Ltd
PSL TOOLS Ltd
Original Assignee
PSL TECHNOLOGY Ltd
PSL TOOLS Ltd
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
Priority claimed from GBGB9625389.3A external-priority patent/GB9625389D0/en
Priority claimed from GBGB9724093.1A external-priority patent/GB9724093D0/en
Application filed by PSL TECHNOLOGY Ltd, PSL TOOLS Ltd filed Critical PSL TECHNOLOGY Ltd
Publication of GB9725821D0 publication Critical patent/GB9725821D0/en
Publication of GB2320270A publication Critical patent/GB2320270A/en
Publication of GB2320270A8 publication Critical patent/GB2320270A8/en
Application granted granted Critical
Publication of GB2320270B publication Critical patent/GB2320270B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
GB9725821A 1996-12-06 1997-12-06 Downhole tool Expired - Lifetime GB2320270B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9625389.3A GB9625389D0 (en) 1996-12-06 1996-12-06 Downhole tool
GBGB9724093.1A GB9724093D0 (en) 1997-11-15 1997-11-15 Downhole tool

Publications (4)

Publication Number Publication Date
GB9725821D0 GB9725821D0 (en) 1998-02-04
GB2320270A GB2320270A (en) 1998-06-17
GB2320270A8 GB2320270A8 (en) 2000-02-14
GB2320270B true GB2320270B (en) 2001-01-17

Family

ID=26310565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9725821A Expired - Lifetime GB2320270B (en) 1996-12-06 1997-12-06 Downhole tool

Country Status (1)

Country Link
GB (1) GB2320270B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9924399D0 (en) * 1999-10-15 1999-12-15 Psl Tools Limited Method
GB0009834D0 (en) * 2000-04-25 2000-06-07 Brit Bit Limited Expandable bit
GB2364079B (en) 2000-06-28 2004-11-17 Renovus Ltd Drill bits
GB2365888B (en) 2000-08-11 2002-07-24 Renovus Ltd Drilling apparatus
US7036611B2 (en) 2002-07-30 2006-05-02 Baker Hughes Incorporated Expandable reamer apparatus for enlarging boreholes while drilling and methods of use
US7131504B2 (en) 2002-12-31 2006-11-07 Weatherford/Lamb, Inc. Pressure activated release member for an expandable drillbit
BRPI0410464A (en) * 2003-05-21 2006-05-30 Shell Int Research drill bit to drill a drill hole in an object
JP6088154B2 (en) * 2012-04-25 2017-03-01 三菱マテリアル株式会社 Drilling tools
GB2569330B (en) 2017-12-13 2021-01-06 Nov Downhole Eurasia Ltd Downhole devices and associated apparatus and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1596308A (en) * 1978-05-17 1981-08-26 Weaver & Hurt Ltd Anchor hole drilling
GB2172315A (en) * 1985-01-04 1986-09-17 Lam Ming Luen Expandable-contractable drilling device
GB2211221A (en) * 1987-10-19 1989-06-28 Charles D Hailey Enhanced diameter clean-out tool and method
US4938291A (en) * 1986-01-06 1990-07-03 Lynde Gerald D Cutting tool for cutting well casing
GB2245626A (en) * 1987-10-19 1992-01-08 Hailey Charles D Enhanced diameter clean-out tool
GB2262758A (en) * 1991-12-27 1993-06-30 Hailey Charles D Downhole cutting tool.
WO1998013648A1 (en) * 1996-09-27 1998-04-02 The University Of Sheffield Rotatable fluidised bed incinerator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1596308A (en) * 1978-05-17 1981-08-26 Weaver & Hurt Ltd Anchor hole drilling
GB2172315A (en) * 1985-01-04 1986-09-17 Lam Ming Luen Expandable-contractable drilling device
US4938291A (en) * 1986-01-06 1990-07-03 Lynde Gerald D Cutting tool for cutting well casing
GB2211221A (en) * 1987-10-19 1989-06-28 Charles D Hailey Enhanced diameter clean-out tool and method
GB2245626A (en) * 1987-10-19 1992-01-08 Hailey Charles D Enhanced diameter clean-out tool
GB2262758A (en) * 1991-12-27 1993-06-30 Hailey Charles D Downhole cutting tool.
WO1998013648A1 (en) * 1996-09-27 1998-04-02 The University Of Sheffield Rotatable fluidised bed incinerator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing

Also Published As

Publication number Publication date
GB2320270A (en) 1998-06-17
GB2320270A8 (en) 2000-02-14
GB9725821D0 (en) 1998-02-04

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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)
PE20 Patent expired after termination of 20 years

Expiry date: 20171205