ATE307954T1 - DRILLING APPARATUS AND METHOD - Google Patents

DRILLING APPARATUS AND METHOD

Info

Publication number
ATE307954T1
ATE307954T1 AT98912587T AT98912587T ATE307954T1 AT E307954 T1 ATE307954 T1 AT E307954T1 AT 98912587 T AT98912587 T AT 98912587T AT 98912587 T AT98912587 T AT 98912587T AT E307954 T1 ATE307954 T1 AT E307954T1
Authority
AT
Austria
Prior art keywords
string
longitudinal axis
cross
section
drill bit
Prior art date
Application number
AT98912587T
Other languages
German (de)
Inventor
Dewey E Owens
Original Assignee
Sibille Patrick Neil
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 Sibille Patrick Neil filed Critical Sibille Patrick Neil
Application granted granted Critical
Publication of ATE307954T1 publication Critical patent/ATE307954T1/en

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
    • 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
    • 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
    • E21B7/10—Correction of deflected boreholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Boring (AREA)

Abstract

An apparatus (10) for inclusion in a string having a drill bit located at one end is described. The apparatus (10) comprises a body (20) having a longitudinal axis which is substantially coaxial with the longitudinal axis of the string. A portion (30) of the body (20) has a cross section where the centre of mass of the body (20) on that cross section is offset from the longitudinal axis of the string. A method of reducing the variation of a drill bit from an intended path (1) in a borehole is also described, where the drill bit is coupled to one end of a string having a longitudinal axis. The method comprises the steps of including a body (20) in the string, where a portion of the body (20) has a cross section where the centre of mass of the body (20) on that cross section is offset from the longitudinal axis of the string. The string is inserted into a borehole, and at least the portion of the body (20) is rotated.
AT98912587T 1997-03-24 1998-03-24 DRILLING APPARATUS AND METHOD ATE307954T1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US82875397A 1997-03-24 1997-03-24
US6914697 1997-03-24
GBGB9725740.6A GB9725740D0 (en) 1997-03-24 1997-12-05 Apparatus and a method for use downhole
PCT/GB1998/000739 WO1998042944A1 (en) 1997-03-24 1998-03-24 Apparatus and a method for drilling boreholes

Publications (1)

Publication Number Publication Date
ATE307954T1 true ATE307954T1 (en) 2005-11-15

Family

ID=27269125

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98912587T ATE307954T1 (en) 1997-03-24 1998-03-24 DRILLING APPARATUS AND METHOD

Country Status (9)

Country Link
EP (1) EP0901560B1 (en)
AT (1) ATE307954T1 (en)
AU (1) AU6737198A (en)
CA (1) CA2255750A1 (en)
DE (1) DE69832018D1 (en)
DK (1) DK0901560T3 (en)
GB (1) GB9725740D0 (en)
NO (1) NO985452L (en)
WO (1) WO1998042944A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066284B2 (en) 2001-11-14 2006-06-27 Halliburton Energy Services, Inc. Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2316409A (en) * 1941-12-05 1943-04-13 Lloyd R Downing Oil well straightener
US3391749A (en) * 1966-06-06 1968-07-09 Land And Marine Rental Company Method and apparatus for drilling straight wells
FR2083938A5 (en) * 1970-03-26 1971-12-17 Werkzeugbau Gmbh
GB1483789A (en) * 1974-11-07 1977-08-24 Amoco Prod Co Drilling tool for the directional drilling of boreholes in the earth
US4190122A (en) * 1978-03-22 1980-02-26 Arnold James F Spaced weight relieved drill collar string
GB2052609A (en) * 1979-06-15 1981-01-28 Nl Industries Inc Well deviation control tool and method of manufacture thereof
US4438810A (en) * 1981-10-26 1984-03-27 Dresser Industries, Inc. Apparatus for decentralizing and orienting a well logging or perforating instrument
US4623026A (en) * 1982-06-03 1986-11-18 Kemp Billy W Method and apparatus of a self-aligning sleeve for the correction of the direction of deviated boreholes
US4493380A (en) * 1982-09-29 1985-01-15 Kenneth A. Freeman Hydraulic straight hole drill collar
US4770258A (en) * 1987-04-27 1988-09-13 Falgout Sr Thomas E Well deviation control tool
US4771830A (en) * 1987-05-01 1988-09-20 Schlumberger Technology Corp. Apparatus for positioning well tools in deviated well bores
US4982802A (en) * 1989-11-22 1991-01-08 Amoco Corporation Method for stabilizing a rotary drill string and drill bit
US5220963A (en) * 1989-12-22 1993-06-22 Patton Consulting, Inc. System for controlled drilling of boreholes along planned profile
US4995466A (en) * 1989-12-22 1991-02-26 Snow Jr Roy W Method and device for stabilizing the path of a drilling tool
US5040619A (en) * 1990-04-12 1991-08-20 Halliburton Logging Services, Inc. Wireline supported perforating gun enabling oriented perforations
DE4225009C2 (en) * 1992-07-29 1996-09-05 Tanke Oil Field Dev Gmbh Method of eliminating vertical borehole downhole from earth drilling
CA2159886A1 (en) * 1995-10-04 1997-04-05 Ken D. Poffenroth Drill stabilizer

Also Published As

Publication number Publication date
DE69832018D1 (en) 2005-12-01
WO1998042944A1 (en) 1998-10-01
DK0901560T3 (en) 2006-03-13
EP0901560A1 (en) 1999-03-17
CA2255750A1 (en) 1998-10-01
EP0901560B1 (en) 2005-10-26
GB9725740D0 (en) 1998-02-04
NO985452D0 (en) 1998-11-23
NO985452L (en) 1999-01-22
AU6737198A (en) 1998-10-20

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Legal Events

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