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GB1494273A - Bent-subs for borehole drilling - Google Patents

Bent-subs for borehole drilling

Info

Publication number
GB1494273A
GB1494273A GB1864075A GB1864075A GB1494273A GB 1494273 A GB1494273 A GB 1494273A GB 1864075 A GB1864075 A GB 1864075A GB 1864075 A GB1864075 A GB 1864075A GB 1494273 A GB1494273 A GB 1494273A
Authority
GB
United Kingdom
Prior art keywords
sections
upper section
russell
variable
receiving
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
Application number
GB1864075A
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
Priority to GB1864075A priority Critical patent/GB1494273A/en
Publication of GB1494273A publication Critical patent/GB1494273A/en
Expired 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1494273 Boring earth &c M K RUSSELL and A W RUSSELL 15 April 1976 [3 May 1975] 18640/75 Heading E1F A variable-angle bent sub for borehole drilling comprises a lower section 12 connected to an upper section 10 by a bearing having its axis of rotation inclined at respective angles to the longitudinal axes of both sections 12, 10. As shown, the upper section 10 has a bore for receiving a shaft 14 projecting from the lower section 12, bearings 18, 20 and an O-ring seal 22 being provided. Preferably, the angles between the bearing axis and the axes of the sections 12, 10 are equal and in the range 1-2‹, the bend angle then being variable between 0‹ and 2-4‹. Relative rotation between the sections 12, 10 may be effected through torque reaction by running the drill 30, and a clutch 24 may be electrically actuated to clamp the sections 12, 10 together, a sensor 26 indicating the relative orientation of the sections. In a simplified form, the two sections of the bent sub may only be locked either in the minimum or maximum angle position. The upper section 10 may carry an instrument package 32 and a self-wiping connector 34 for receiving a wireline connector probe 36. Magnetically screening material can be provided at 38, 40.
GB1864075A 1976-04-15 1976-04-15 Bent-subs for borehole drilling Expired GB1494273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1864075A GB1494273A (en) 1976-04-15 1976-04-15 Bent-subs for borehole drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1864075A GB1494273A (en) 1976-04-15 1976-04-15 Bent-subs for borehole drilling

Publications (1)

Publication Number Publication Date
GB1494273A true GB1494273A (en) 1977-12-07

Family

ID=10115931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1864075A Expired GB1494273A (en) 1976-04-15 1976-04-15 Bent-subs for borehole drilling

Country Status (1)

Country Link
GB (1) GB1494273A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930014A1 (en) * 1978-07-24 1980-02-07 Inst Francais Du Petrol MANIFOLD WITH VARIABLE ANGLE FOR DIRECTIONAL HOLES
WO1980002582A1 (en) * 1979-05-21 1980-11-27 L Benoit Variable angle directional drilling sub
DE3140646A1 (en) * 1980-10-13 1982-08-12 Institut Français du Pétrole, 92502 Rueil-Malmaison, Hauts-de-Seine MANIFOLD CONNECTOR WITH VARIABLE ANGLE FOR DIRECTIONAL HOLES
US4374547A (en) * 1978-07-24 1983-02-22 Institut Francais Du Petrole Crank connector for directional drilling
GB2121455A (en) * 1982-04-16 1983-12-21 Dr Larry R Russell Surface control bent sub for directional drilling of petroleum wells
FR2542366A1 (en) * 1983-03-08 1984-09-14 Baker Oil Tools Inc APPARATUS FOR DIRECT DRILLING OF UNDERGROUND WELLS
US4554982A (en) * 1984-08-03 1985-11-26 Hydril Company Apparatus for forming boreholes
US4828053A (en) * 1988-01-12 1989-05-09 Maurer Engineering, Inc. Deviated wellbore drilling system and apparatus
GB2233363A (en) * 1989-06-28 1991-01-09 Baroid Technology Inc Down-hole bent motor housings
USRE33751E (en) * 1985-10-11 1991-11-26 Smith International, Inc. System and method for controlled directional drilling
US5090496A (en) * 1989-06-28 1992-02-25 Baroid Technology, Inc. Down-hole bent motor housings
GB2271795A (en) * 1992-10-23 1994-04-27 Stirling Design Int Directional drilling tool
GB2307537A (en) * 1995-11-22 1997-05-28 Astec Dev Ltd Shaft alignment for downhole drilling
US9556679B2 (en) 2011-08-19 2017-01-31 Precision Energy Services, Inc. Rotary steerable assembly inhibiting counterclockwise whirl during directional drilling
US10273757B2 (en) 2015-04-16 2019-04-30 Halliburton Energy Services, Inc. Directional drilling apparatus with an aligned housing bore

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303135A (en) * 1977-08-18 1981-12-01 Benoit Lloyd F Directional drilling sub
US4286676A (en) * 1978-07-24 1981-09-01 Institut Francais Du Petrole Crank connector for directional drilling
US4374547A (en) * 1978-07-24 1983-02-22 Institut Francais Du Petrole Crank connector for directional drilling
DE2930014A1 (en) * 1978-07-24 1980-02-07 Inst Francais Du Petrol MANIFOLD WITH VARIABLE ANGLE FOR DIRECTIONAL HOLES
WO1980002582A1 (en) * 1979-05-21 1980-11-27 L Benoit Variable angle directional drilling sub
DE3140646A1 (en) * 1980-10-13 1982-08-12 Institut Français du Pétrole, 92502 Rueil-Malmaison, Hauts-de-Seine MANIFOLD CONNECTOR WITH VARIABLE ANGLE FOR DIRECTIONAL HOLES
GB2121455A (en) * 1982-04-16 1983-12-21 Dr Larry R Russell Surface control bent sub for directional drilling of petroleum wells
FR2542366A1 (en) * 1983-03-08 1984-09-14 Baker Oil Tools Inc APPARATUS FOR DIRECT DRILLING OF UNDERGROUND WELLS
GB2136478A (en) * 1983-03-08 1984-09-19 Baker Oil Tools Inc Apparatus for directional drilling of subterranean wells
US4554982A (en) * 1984-08-03 1985-11-26 Hydril Company Apparatus for forming boreholes
USRE33751E (en) * 1985-10-11 1991-11-26 Smith International, Inc. System and method for controlled directional drilling
US4828053A (en) * 1988-01-12 1989-05-09 Maurer Engineering, Inc. Deviated wellbore drilling system and apparatus
GB2233363A (en) * 1989-06-28 1991-01-09 Baroid Technology Inc Down-hole bent motor housings
US5090496A (en) * 1989-06-28 1992-02-25 Baroid Technology, Inc. Down-hole bent motor housings
GB2233363B (en) * 1989-06-28 1992-09-23 Baroid Technology Inc Down-hole bent motor housings
GB2271795A (en) * 1992-10-23 1994-04-27 Stirling Design Int Directional drilling tool
US5441119A (en) * 1992-10-23 1995-08-15 Transocean Petroleum Technology As Directional drilling tool
GB2271795B (en) * 1992-10-23 1996-10-30 Stirling Design Int Directional drilling tool
GB2307537A (en) * 1995-11-22 1997-05-28 Astec Dev Ltd Shaft alignment for downhole drilling
GB2307537B (en) * 1995-11-22 1999-08-18 Astec Dev Ltd Shaft alignment
US6059661A (en) * 1995-11-22 2000-05-09 Japan National Oil Corporation Shaft alignment
US9556679B2 (en) 2011-08-19 2017-01-31 Precision Energy Services, Inc. Rotary steerable assembly inhibiting counterclockwise whirl during directional drilling
US10273757B2 (en) 2015-04-16 2019-04-30 Halliburton Energy Services, Inc. Directional drilling apparatus with an aligned housing bore

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940415