GB2378468B - Electrically sequenced tractor - Google Patents

Electrically sequenced tractor

Info

Publication number
GB2378468B
GB2378468B GB0226835A GB0226835A GB2378468B GB 2378468 B GB2378468 B GB 2378468B GB 0226835 A GB0226835 A GB 0226835A GB 0226835 A GB0226835 A GB 0226835A GB 2378468 B GB2378468 B GB 2378468B
Authority
GB
United Kingdom
Prior art keywords
electrically sequenced
sequenced tractor
tractor
electrically
sequenced
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
GB0226835A
Other versions
GB0226835D0 (en
GB2378468A (en
Inventor
Duane Bloom
N Bruce Moore
Ronald E Beaufort
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.)
WWT International Inc
Original Assignee
WWT International Inc
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 US09/453,996 external-priority patent/US6347674B1/en
Application filed by WWT International Inc filed Critical WWT International Inc
Publication of GB0226835D0 publication Critical patent/GB0226835D0/en
Publication of GB2378468A publication Critical patent/GB2378468A/en
Application granted granted Critical
Publication of GB2378468B publication Critical patent/GB2378468B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/18—Anchoring or feeding 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005—Below-ground automatic control 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/062—Deflecting the direction of boreholes the tool shaft rotating inside a non-rotating guide travelling with the shaft

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)
GB0226835A 1998-12-18 1999-12-17 Electrically sequenced tractor Expired - Lifetime GB2378468B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US11273398P 1998-12-18 1998-12-18
US12950399P 1999-04-15 1999-04-15
US16879099P 1999-12-02 1999-12-02
US09/453,996 US6347674B1 (en) 1998-12-18 1999-12-03 Electrically sequenced tractor
GB9929770A GB2346908B (en) 1998-12-18 1999-12-17 Electrically sequenced tractor

Publications (3)

Publication Number Publication Date
GB0226835D0 GB0226835D0 (en) 2002-12-24
GB2378468A GB2378468A (en) 2003-02-12
GB2378468B true GB2378468B (en) 2003-04-02

Family

ID=27517511

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0226839A Expired - Lifetime GB2378469B (en) 1998-12-18 1999-12-17 Electrically sequenced tractor
GB0226835A Expired - Lifetime GB2378468B (en) 1998-12-18 1999-12-17 Electrically sequenced tractor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0226839A Expired - Lifetime GB2378469B (en) 1998-12-18 1999-12-17 Electrically sequenced tractor

Country Status (1)

Country Link
GB (2) GB2378469B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9500058B2 (en) 2004-05-28 2016-11-22 Schlumberger Technology Corporation Coiled tubing tractor assembly
US7617873B2 (en) 2004-05-28 2009-11-17 Schlumberger Technology Corporation System and methods using fiber optics in coiled tubing
US7516782B2 (en) 2006-02-09 2009-04-14 Schlumberger Technology Corporation Self-anchoring device with force amplification
US8863824B2 (en) 2006-02-09 2014-10-21 Schlumberger Technology Corporation Downhole sensor interface
US9133673B2 (en) 2007-01-02 2015-09-15 Schlumberger Technology Corporation Hydraulically driven tandem tractor assembly
US8770303B2 (en) 2007-02-19 2014-07-08 Schlumberger Technology Corporation Self-aligning open-hole tractor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5794703A (en) * 1996-07-03 1998-08-18 Ctes, L.C. Wellbore tractor and method of moving an item through a wellbore

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5794703A (en) * 1996-07-03 1998-08-18 Ctes, L.C. Wellbore tractor and method of moving an item through a wellbore

Also Published As

Publication number Publication date
GB0226835D0 (en) 2002-12-24
GB2378469A (en) 2003-02-12
GB2378469B (en) 2003-04-02
GB2378468A (en) 2003-02-12
GB0226839D0 (en) 2002-12-24

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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)

Free format text: REGISTERED BETWEEN 20150416 AND 20150422

PE20 Patent expired after termination of 20 years

Expiry date: 20191216