GB2415209B - Rotary drilling apparatus - Google Patents

Rotary drilling apparatus

Info

Publication number
GB2415209B
GB2415209B GB0413719A GB0413719A GB2415209B GB 2415209 B GB2415209 B GB 2415209B GB 0413719 A GB0413719 A GB 0413719A GB 0413719 A GB0413719 A GB 0413719A GB 2415209 B GB2415209 B GB 2415209B
Authority
GB
United Kingdom
Prior art keywords
rotary drilling
drilling apparatus
rotary
drilling
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
GB0413719A
Other versions
GB2415209A (en
GB0413719D0 (en
Inventor
Stale Vikra
Karl Gunnar Tjeltveit
Kai Vikra
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.)
Equinor ASA
Original Assignee
Statoil ASA
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 Statoil ASA filed Critical Statoil ASA
Priority to GB0413719A priority Critical patent/GB2415209B/en
Publication of GB0413719D0 publication Critical patent/GB0413719D0/en
Publication of GB2415209A publication Critical patent/GB2415209A/en
Application granted granted Critical
Publication of GB2415209B publication Critical patent/GB2415209B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • 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
    • E21B10/00—Drill bits
    • 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
    • E21B10/00—Drill bits
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits

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)
GB0413719A 2004-06-18 2004-06-18 Rotary drilling apparatus Expired - Fee Related GB2415209B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0413719A GB2415209B (en) 2004-06-18 2004-06-18 Rotary drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0413719A GB2415209B (en) 2004-06-18 2004-06-18 Rotary drilling apparatus

Publications (3)

Publication Number Publication Date
GB0413719D0 GB0413719D0 (en) 2004-07-21
GB2415209A GB2415209A (en) 2005-12-21
GB2415209B true GB2415209B (en) 2008-12-24

Family

ID=32750201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0413719A Expired - Fee Related GB2415209B (en) 2004-06-18 2004-06-18 Rotary drilling apparatus

Country Status (1)

Country Link
GB (1) GB2415209B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8006783B2 (en) * 2009-03-26 2011-08-30 Longyear Tm, Inc. Helical drilling apparatus, systems, and methods
CN108500001B (en) * 2018-03-19 2020-12-01 福建工程学院 Spiral tool bit of cement silo cleaning machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511831A (en) * 1950-06-20 Drill bit
US3861477A (en) * 1972-08-18 1975-01-21 Rech & 0 Activities Petroliere Drilling bits for boring holes and wells
US4267893A (en) * 1979-08-27 1981-05-19 Union Oil Company Of California Dual-rotating eccentric drilling apparatus and method
US6422328B1 (en) * 1999-10-27 2002-07-23 Baker Hughes Incorporated Dual cutting mill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511831A (en) * 1950-06-20 Drill bit
US3861477A (en) * 1972-08-18 1975-01-21 Rech & 0 Activities Petroliere Drilling bits for boring holes and wells
US4267893A (en) * 1979-08-27 1981-05-19 Union Oil Company Of California Dual-rotating eccentric drilling apparatus and method
US6422328B1 (en) * 1999-10-27 2002-07-23 Baker Hughes Incorporated Dual cutting mill

Also Published As

Publication number Publication date
GB2415209A (en) 2005-12-21
GB0413719D0 (en) 2004-07-21

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Legal Events

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

Effective date: 20130618