EP0325272A3 - Drill bit with improved steerability - Google Patents

Drill bit with improved steerability Download PDF

Info

Publication number
EP0325272A3
EP0325272A3 EP89100960A EP89100960A EP0325272A3 EP 0325272 A3 EP0325272 A3 EP 0325272A3 EP 89100960 A EP89100960 A EP 89100960A EP 89100960 A EP89100960 A EP 89100960A EP 0325272 A3 EP0325272 A3 EP 0325272A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
improved steerability
steerability
improved
drill
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.)
Granted
Application number
EP89100960A
Other versions
EP0325272B1 (en
EP0325272A2 (en
Inventor
Gordon A. Tibbitts
Mark L. Jones
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.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Eastman Christensen Co
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 Eastman Christensen Co filed Critical Eastman Christensen Co
Publication of EP0325272A2 publication Critical patent/EP0325272A2/en
Publication of EP0325272A3 publication Critical patent/EP0325272A3/en
Application granted granted Critical
Publication of EP0325272B1 publication Critical patent/EP0325272B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1092Gauge section of drill bits
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling
    • E21B7/06Deflecting the direction of boreholes
    • E21B7/064Deflecting the direction of boreholes specially adapted drill bits therefor
EP19890100960 1988-01-20 1989-01-20 Drill bit with improved steerability Expired - Lifetime EP0325272B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14629088A 1988-01-20 1988-01-20
US146290 1988-01-20

Publications (3)

Publication Number Publication Date
EP0325272A2 EP0325272A2 (en) 1989-07-26
EP0325272A3 true EP0325272A3 (en) 1990-02-07
EP0325272B1 EP0325272B1 (en) 1993-04-28

Family

ID=22516689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890100960 Expired - Lifetime EP0325272B1 (en) 1988-01-20 1989-01-20 Drill bit with improved steerability

Country Status (4)

Country Link
EP (1) EP0325272B1 (en)
AU (1) AU613142B2 (en)
CA (1) CA1306245C (en)
DE (1) DE68906166T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161167A (en) * 1990-06-21 1992-11-03 Mitsubishi Denki Kabushiki Kaisha Semiconductor laser producing visible light
FR2743843B1 (en) * 1996-01-24 1998-04-24 D A T C Diamond And Tungsten C DRILLING TOOL, PARTICULARLY FOR PERFORMING OIL DRILLING
FR2751372B1 (en) * 1996-07-22 1998-12-04 Total Sa RELAXATION DRILLING TOOL
US5967247A (en) * 1997-09-08 1999-10-19 Baker Hughes Incorporated Steerable rotary drag bit with longitudinally variable gage aggressiveness

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553701A (en) * 1949-09-16 1951-05-22 Willard F Comstock Well drilling bit
US3318400A (en) * 1965-03-31 1967-05-09 Exxon Production Research Co Hollow crown diamond bit
US3367430A (en) * 1966-08-24 1968-02-06 Christensen Diamond Prod Co Combination drill and reamer bit
US3833077A (en) * 1971-02-12 1974-09-03 L Lavallee Diamond drills
US3978933A (en) * 1975-01-27 1976-09-07 Smith International, Inc. Bit-adjacent stabilizer and steel
US4176723A (en) * 1977-11-11 1979-12-04 DTL, Incorporated Diamond drill bit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553701A (en) * 1949-09-16 1951-05-22 Willard F Comstock Well drilling bit
US3318400A (en) * 1965-03-31 1967-05-09 Exxon Production Research Co Hollow crown diamond bit
US3367430A (en) * 1966-08-24 1968-02-06 Christensen Diamond Prod Co Combination drill and reamer bit
US3833077A (en) * 1971-02-12 1974-09-03 L Lavallee Diamond drills
US3978933A (en) * 1975-01-27 1976-09-07 Smith International, Inc. Bit-adjacent stabilizer and steel
US4176723A (en) * 1977-11-11 1979-12-04 DTL, Incorporated Diamond drill bit

Also Published As

Publication number Publication date
DE68906166D1 (en) 1993-06-03
EP0325272B1 (en) 1993-04-28
DE68906166T2 (en) 1993-11-25
CA1306245C (en) 1992-08-11
AU613142B2 (en) 1991-07-25
EP0325272A2 (en) 1989-07-26
AU2858589A (en) 1989-07-20

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