GB2195379B - Improvements in or relating to drilling - Google Patents

Improvements in or relating to drilling

Info

Publication number
GB2195379B
GB2195379B GB8722296A GB8722296A GB2195379B GB 2195379 B GB2195379 B GB 2195379B GB 8722296 A GB8722296 A GB 8722296A GB 8722296 A GB8722296 A GB 8722296A GB 2195379 B GB2195379 B GB 2195379B
Authority
GB
United Kingdom
Prior art keywords
drilling
relating
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
GB8722296A
Other versions
GB8722296D0 (en
GB2195379A (en
Inventor
Robert Michael Sloma
Richard Eady Robinson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8722296D0 publication Critical patent/GB8722296D0/en
Publication of GB2195379A publication Critical patent/GB2195379A/en
Application granted granted Critical
Publication of GB2195379B publication Critical patent/GB2195379B/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
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/04—Rotary tables
    • E21B3/045—Rotary tables movably mounted on the drilling structure or platform
    • 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
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/021—With a rotary table, i.e. a fixed rotary drive for a relatively advancing tool

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)
GB8722296A 1986-09-25 1987-09-22 Improvements in or relating to drilling Expired - Lifetime GB2195379B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868623080A GB8623080D0 (en) 1986-09-25 1986-09-25 Drilling

Publications (3)

Publication Number Publication Date
GB8722296D0 GB8722296D0 (en) 1987-10-28
GB2195379A GB2195379A (en) 1988-04-07
GB2195379B true GB2195379B (en) 1990-02-14

Family

ID=10604774

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868623080A Pending GB8623080D0 (en) 1986-09-25 1986-09-25 Drilling
GB8722296A Expired - Lifetime GB2195379B (en) 1986-09-25 1987-09-22 Improvements in or relating to drilling

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868623080A Pending GB8623080D0 (en) 1986-09-25 1986-09-25 Drilling

Country Status (1)

Country Link
GB (2) GB8623080D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242920B (en) * 1990-04-09 1994-07-06 Trevi Telescopic bar of a drilling rig
FR2721345A1 (en) * 1994-06-20 1995-12-22 Campguilhem Jacques Multi-purpose slider drill

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1125853A (en) * 1967-01-16 1968-09-05 Marutai Doboku Company Ltd A pile driving apparatus including earth boring equipment
GB1231527A (en) * 1968-12-12 1971-05-12
GB1444015A (en) * 1973-05-23 1976-07-28 Trentham Ltd G Percy Pull-down devices for boring rigs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1125853A (en) * 1967-01-16 1968-09-05 Marutai Doboku Company Ltd A pile driving apparatus including earth boring equipment
GB1231527A (en) * 1968-12-12 1971-05-12
GB1444015A (en) * 1973-05-23 1976-07-28 Trentham Ltd G Percy Pull-down devices for boring rigs

Also Published As

Publication number Publication date
GB8722296D0 (en) 1987-10-28
GB2195379A (en) 1988-04-07
GB8623080D0 (en) 1986-10-29

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Legal Events

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

Effective date: 19940922