GB2517525B - Kelly bars - Google Patents

Kelly bars

Info

Publication number
GB2517525B
GB2517525B GB1401119.1A GB201401119A GB2517525B GB 2517525 B GB2517525 B GB 2517525B GB 201401119 A GB201401119 A GB 201401119A GB 2517525 B GB2517525 B GB 2517525B
Authority
GB
United Kingdom
Prior art keywords
kelly bars
kelly
bars
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.)
Active
Application number
GB1401119.1A
Other versions
GB201401119D0 (en
GB2517525A (en
Inventor
James Michael Unsworth
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.)
HIGH MEAD DEVELOPMENTS Ltd
Original Assignee
HIGH MEAD DEVELOPMENTS 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
Application filed by HIGH MEAD DEVELOPMENTS Ltd filed Critical HIGH MEAD DEVELOPMENTS Ltd
Priority to GB1401119.1A priority Critical patent/GB2517525B/en
Publication of GB201401119D0 publication Critical patent/GB201401119D0/en
Publication of GB2517525A publication Critical patent/GB2517525A/en
Application granted granted Critical
Publication of GB2517525B publication Critical patent/GB2517525B/en
Active 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • 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
    • 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
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • E21B17/0465—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches characterised by radially inserted locking elements
    • 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

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)
GB1401119.1A 2014-01-23 2014-01-23 Kelly bars Active GB2517525B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1401119.1A GB2517525B (en) 2014-01-23 2014-01-23 Kelly bars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1401119.1A GB2517525B (en) 2014-01-23 2014-01-23 Kelly bars

Publications (3)

Publication Number Publication Date
GB201401119D0 GB201401119D0 (en) 2014-03-12
GB2517525A GB2517525A (en) 2015-02-25
GB2517525B true GB2517525B (en) 2015-10-07

Family

ID=50287432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1401119.1A Active GB2517525B (en) 2014-01-23 2014-01-23 Kelly bars

Country Status (1)

Country Link
GB (1) GB2517525B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396185A (en) * 1972-08-03 1975-06-04 Expanded Piling Co Ltd Earth-boring tool
DE102011109001A1 (en) * 2011-07-29 2013-01-31 Abf-Bohrtechnik Gmbh & Co. Kg Drilling equipment for boring holes in foundation pile for e.g. building, has tool or intermediate piece extended through transverse bore, and another transverse bore arranged in middle part of walls in relation to cross section of rod

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396185A (en) * 1972-08-03 1975-06-04 Expanded Piling Co Ltd Earth-boring tool
DE102011109001A1 (en) * 2011-07-29 2013-01-31 Abf-Bohrtechnik Gmbh & Co. Kg Drilling equipment for boring holes in foundation pile for e.g. building, has tool or intermediate piece extended through transverse bore, and another transverse bore arranged in middle part of walls in relation to cross section of rod

Also Published As

Publication number Publication date
GB201401119D0 (en) 2014-03-12
GB2517525A (en) 2015-02-25

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