GB2448991B - Electro-mechanical thruster - Google Patents

Electro-mechanical thruster

Info

Publication number
GB2448991B
GB2448991B GB0808011A GB0808011A GB2448991B GB 2448991 B GB2448991 B GB 2448991B GB 0808011 A GB0808011 A GB 0808011A GB 0808011 A GB0808011 A GB 0808011A GB 2448991 B GB2448991 B GB 2448991B
Authority
GB
United Kingdom
Prior art keywords
electro
mechanical thruster
thruster
mechanical
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
GB0808011A
Other versions
GB2448991A (en
GB0808011D0 (en
Inventor
Arley G Lee
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.)
Smith International Inc
Original Assignee
Smith 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
Application filed by Smith International Inc filed Critical Smith International Inc
Publication of GB0808011D0 publication Critical patent/GB0808011D0/en
Publication of GB2448991A publication Critical patent/GB2448991A/en
Application granted granted Critical
Publication of GB2448991B publication Critical patent/GB2448991B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB0808011A 2007-05-01 2008-05-01 Electro-mechanical thruster Expired - Fee Related GB2448991B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91534907P 2007-05-01 2007-05-01

Publications (3)

Publication Number Publication Date
GB0808011D0 GB0808011D0 (en) 2008-06-11
GB2448991A GB2448991A (en) 2008-11-05
GB2448991B true GB2448991B (en) 2009-09-02

Family

ID=39537175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0808011A Expired - Fee Related GB2448991B (en) 2007-05-01 2008-05-01 Electro-mechanical thruster

Country Status (3)

Country Link
CA (1) CA2630108C (en)
GB (1) GB2448991B (en)
NO (1) NO20082060L (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040494A (en) * 1975-06-09 1977-08-09 Smith International, Inc. Drill director
US4615401A (en) * 1984-06-26 1986-10-07 Smith International Automatic hydraulic thruster
US5476148A (en) * 1993-10-26 1995-12-19 Labonte; Raymond Tool for maintaining wellbore penetration
US6102138A (en) * 1997-08-20 2000-08-15 Baker Hughes Incorporated Pressure-modulation valve assembly
US20040108108A1 (en) * 2001-10-12 2004-06-10 Weatherford/Lamb., Inc. Methods and apparatus to control downhole tools

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040494A (en) * 1975-06-09 1977-08-09 Smith International, Inc. Drill director
US4615401A (en) * 1984-06-26 1986-10-07 Smith International Automatic hydraulic thruster
US5476148A (en) * 1993-10-26 1995-12-19 Labonte; Raymond Tool for maintaining wellbore penetration
US6102138A (en) * 1997-08-20 2000-08-15 Baker Hughes Incorporated Pressure-modulation valve assembly
US20040108108A1 (en) * 2001-10-12 2004-06-10 Weatherford/Lamb., Inc. Methods and apparatus to control downhole tools

Also Published As

Publication number Publication date
CA2630108A1 (en) 2008-11-01
GB2448991A (en) 2008-11-05
NO20082060L (en) 2008-11-03
GB0808011D0 (en) 2008-06-11
CA2630108C (en) 2010-10-12

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Legal Events

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

Effective date: 20170501