AU6737198A - Apparatus and a method for drilling boreholes - Google Patents
Apparatus and a method for drilling boreholesInfo
- Publication number
- AU6737198A AU6737198A AU67371/98A AU6737198A AU6737198A AU 6737198 A AU6737198 A AU 6737198A AU 67371/98 A AU67371/98 A AU 67371/98A AU 6737198 A AU6737198 A AU 6737198A AU 6737198 A AU6737198 A AU 6737198A
- Authority
- AU
- Australia
- Prior art keywords
- string
- longitudinal axis
- cross
- section
- drill bit
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000005553 drilling Methods 0.000 title 1
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)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (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.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82875397A | 1997-03-24 | 1997-03-24 | |
US6914697 | 1997-03-24 | ||
US08828753 | 1997-03-24 | ||
US29069146 | 1997-03-24 | ||
GB9725740 | 1997-12-05 | ||
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 |
---|---|
AU6737198A true AU6737198A (en) | 1998-10-20 |
Family
ID=27269125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU67371/98A Abandoned AU6737198A (en) | 1997-03-24 | 1998-03-24 | Apparatus and a method for drilling boreholes |
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)
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)
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 |
US4995466A (en) * | 1989-12-22 | 1991-02-26 | Snow Jr Roy W | Method and device for stabilizing the path of a drilling tool |
US5220963A (en) * | 1989-12-22 | 1993-06-22 | Patton Consulting, Inc. | System for controlled drilling of boreholes along planned profile |
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 |
-
1997
- 1997-12-05 GB GBGB9725740.6A patent/GB9725740D0/en not_active Ceased
-
1998
- 1998-03-24 DE DE69832018T patent/DE69832018D1/en not_active Expired - Lifetime
- 1998-03-24 DK DK98912587T patent/DK0901560T3/en active
- 1998-03-24 WO PCT/GB1998/000739 patent/WO1998042944A1/en active IP Right Grant
- 1998-03-24 EP EP98912587A patent/EP0901560B1/en not_active Expired - Lifetime
- 1998-03-24 CA CA002255750A patent/CA2255750A1/en not_active Abandoned
- 1998-03-24 AT AT98912587T patent/ATE307954T1/en not_active IP Right Cessation
- 1998-03-24 AU AU67371/98A patent/AU6737198A/en not_active Abandoned
- 1998-11-23 NO NO985452A patent/NO985452L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0901560B1 (en) | 2005-10-26 |
NO985452L (en) | 1999-01-22 |
WO1998042944A1 (en) | 1998-10-01 |
GB9725740D0 (en) | 1998-02-04 |
ATE307954T1 (en) | 2005-11-15 |
DE69832018D1 (en) | 2005-12-01 |
CA2255750A1 (en) | 1998-10-01 |
NO985452D0 (en) | 1998-11-23 |
EP0901560A1 (en) | 1999-03-17 |
DK0901560T3 (en) | 2006-03-13 |
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