NO310247B1 - Rotasjonsboreverktöyanordning for bruk ved avviksboring - Google Patents
Rotasjonsboreverktöyanordning for bruk ved avviksboring Download PDFInfo
- Publication number
- NO310247B1 NO310247B1 NO19953068A NO953068A NO310247B1 NO 310247 B1 NO310247 B1 NO 310247B1 NO 19953068 A NO19953068 A NO 19953068A NO 953068 A NO953068 A NO 953068A NO 310247 B1 NO310247 B1 NO 310247B1
- Authority
- NO
- Norway
- Prior art keywords
- housing
- axis
- eccentric
- rotation
- coupling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims description 62
- 230000008878 coupling Effects 0.000 claims description 53
- 238000010168 coupling process Methods 0.000 claims description 53
- 238000005859 coupling reaction Methods 0.000 claims description 53
- 239000012530 fluid Substances 0.000 claims description 21
- 229910000679 solder Inorganic materials 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims 6
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000269627 Amphiuma means Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
- E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
-
- 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
-
- 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
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
- Drilling And Boring (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/286,291 US5484029A (en) | 1994-08-05 | 1994-08-05 | Steerable drilling tool and system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO953068D0 NO953068D0 (no) | 1995-08-04 |
| NO953068L NO953068L (no) | 1996-02-06 |
| NO310247B1 true NO310247B1 (no) | 2001-06-11 |
Family
ID=23097936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19953068A NO310247B1 (no) | 1994-08-05 | 1995-08-04 | Rotasjonsboreverktöyanordning for bruk ved avviksboring |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US5484029A (fr) |
| EP (1) | EP0695850B1 (fr) |
| AU (1) | AU681302B2 (fr) |
| CA (1) | CA2154959C (fr) |
| DE (1) | DE69513340D1 (fr) |
| NO (1) | NO310247B1 (fr) |
Families Citing this family (85)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617926A (en) * | 1994-08-05 | 1997-04-08 | Schlumberger Technology Corporation | Steerable drilling tool and system |
| DE69603853T2 (de) * | 1995-05-31 | 2000-03-16 | Shell Internationale Research Maatschappij B.V., D | Vorrichtung zum steuern der andruckkraft auf einen erdbohrmeissel |
| US6242912B1 (en) | 1995-10-12 | 2001-06-05 | Numar Corporation | System and method for lithology-independent gas detection using multifrequency gradient NMR logging |
| DE19620401C2 (de) * | 1996-05-21 | 1998-06-10 | Tracto Technik | Lenkbare Bohrvorrichtung |
| GB9612524D0 (en) * | 1996-06-14 | 1996-08-14 | Anderson Charles A | Drilling apparatus |
| US5964294A (en) * | 1996-12-04 | 1999-10-12 | Schlumberger Technology Corporation | Apparatus and method for orienting a downhole tool in a horizontal or deviated well |
| US5899283A (en) * | 1997-02-05 | 1999-05-04 | Railhead Underground Products, L.L.C. | Drill bit for horizontal directional drilling of rock formations |
| US5934391A (en) * | 1997-02-05 | 1999-08-10 | Railhead Underground Products, L.L.C. | Sonde housing door hold-down system |
| US5950743A (en) * | 1997-02-05 | 1999-09-14 | Cox; David M. | Method for horizontal directional drilling of rock formations |
| US6050350A (en) * | 1997-05-12 | 2000-04-18 | Morris; Waldo | Underground directional drilling steering tool |
| US6607044B1 (en) * | 1997-10-27 | 2003-08-19 | Halliburton Energy Services, Inc. | Three dimensional steerable system and method for steering bit to drill borehole |
| GB9801010D0 (en) | 1998-01-16 | 1998-03-18 | Flight Refueling Ltd | Data transmission systems |
| US6092610A (en) * | 1998-02-05 | 2000-07-25 | Schlumberger Technology Corporation | Actively controlled rotary steerable system and method for drilling wells |
| NZ508393A (en) * | 1998-06-08 | 2003-10-31 | Charles T Webb | Directional drilling system and apparatus |
| BR9911083A (pt) * | 1998-06-10 | 2001-02-20 | Shell Int Research | Dispositivo para realizar operações de corte em um poço subterrâneo. |
| US6158529A (en) * | 1998-12-11 | 2000-12-12 | Schlumberger Technology Corporation | Rotary steerable well drilling system utilizing sliding sleeve |
| US6109372A (en) * | 1999-03-15 | 2000-08-29 | Schlumberger Technology Corporation | Rotary steerable well drilling system utilizing hydraulic servo-loop |
| US6176327B1 (en) * | 1999-05-10 | 2001-01-23 | Atlantic Richfield Company | Method and toolstring for operating a downhole motor |
| US6257356B1 (en) | 1999-10-06 | 2001-07-10 | Aps Technology, Inc. | Magnetorheological fluid apparatus, especially adapted for use in a steerable drill string, and a method of using same |
| US6216802B1 (en) | 1999-10-18 | 2001-04-17 | Donald M. Sawyer | Gravity oriented directional drilling apparatus and method |
| EP1228290A4 (fr) * | 1999-11-05 | 2005-03-23 | Halliburton Energy Serv Inc | Verificateur de couches de forage, appareil et procede de test et de verification de l'etat du verificateur |
| US7136795B2 (en) | 1999-11-10 | 2006-11-14 | Schlumberger Technology Corporation | Control method for use with a steerable drilling system |
| DE60011587T2 (de) | 1999-11-10 | 2005-06-30 | Schlumberger Holdings Ltd., Road Town | Steuerungsverfahren für steuerbares bohrsystem |
| US6364034B1 (en) * | 2000-02-08 | 2002-04-02 | William N Schoeffler | Directional drilling apparatus |
| GB0014802D0 (en) * | 2000-06-16 | 2000-08-09 | Head Philip | Directional drilling tool |
| US6837315B2 (en) | 2001-05-09 | 2005-01-04 | Schlumberger Technology Corporation | Rotary steerable drilling tool |
| US6808027B2 (en) | 2001-06-11 | 2004-10-26 | Rst (Bvi), Inc. | Wellbore directional steering tool |
| NO322809B1 (no) | 2001-06-15 | 2006-12-11 | Schlumberger Technology Bv | Anordning og fremgangsmate for a overvake og styre utplassering av utstyr pa havbunnen |
| US6679327B2 (en) | 2001-11-30 | 2004-01-20 | Baker Hughes, Inc. | Internal oriented perforating system and method |
| US20030127252A1 (en) * | 2001-12-19 | 2003-07-10 | Geoff Downton | Motor Driven Hybrid Rotary Steerable System |
| US6810973B2 (en) | 2002-02-08 | 2004-11-02 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having offset cutting tooth paths |
| US6814168B2 (en) | 2002-02-08 | 2004-11-09 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having elevated wear protector receptacles |
| US6810971B1 (en) | 2002-02-08 | 2004-11-02 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit |
| US6810972B2 (en) | 2002-02-08 | 2004-11-02 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having a one bolt attachment system |
| US6827159B2 (en) | 2002-02-08 | 2004-12-07 | Hard Rock Drilling & Fabrication, L.L.C. | Steerable horizontal subterranean drill bit having an offset drilling fluid seal |
| US7513318B2 (en) * | 2002-02-19 | 2009-04-07 | Smith International, Inc. | Steerable underreamer/stabilizer assembly and method |
| US7611522B2 (en) * | 2003-06-02 | 2009-11-03 | Nuvasive, Inc. | Gravity dependent pedicle screw tap hole guide and data processing device |
| US6698535B1 (en) | 2002-04-30 | 2004-03-02 | Waldo Morris | Floating offset transmitter housing underground directional drilling tool |
| WO2003096075A1 (fr) | 2002-05-13 | 2003-11-20 | Camco International (Uk) Limited | Reetalonnage de capteurs de fond |
| US6827158B1 (en) * | 2002-07-31 | 2004-12-07 | The Charles Machine Works, Inc. | Two-pipe on-grade directional boring tool and method |
| US6978850B2 (en) * | 2003-08-14 | 2005-12-27 | Sawyer Donald M | Smart clutch |
| US7243739B2 (en) * | 2004-03-11 | 2007-07-17 | Rankin Iii Robert E | Coiled tubing directional drilling apparatus |
| US7178611B2 (en) * | 2004-03-25 | 2007-02-20 | Cdx Gas, Llc | System and method for directional drilling utilizing clutch assembly |
| CN100467892C (zh) * | 2005-12-31 | 2009-03-11 | 川湖科技股份有限公司 | 可自动解掣的滑轨挡止构造 |
| US7861802B2 (en) * | 2006-01-18 | 2011-01-04 | Smith International, Inc. | Flexible directional drilling apparatus and method |
| US7506703B2 (en) * | 2006-01-18 | 2009-03-24 | Smith International, Inc. | Drilling and hole enlargement device |
| AU2007254173B2 (en) * | 2006-05-17 | 2013-07-25 | Nuvasive, Inc. | Surgical trajectory monitoring system and related methods |
| WO2009055034A1 (fr) | 2007-10-24 | 2009-04-30 | Nuvasive, Inc. | Système de contrôle de trajectoire chirurgicale et procédés associés |
| US7810582B2 (en) * | 2007-11-19 | 2010-10-12 | Webb Charles T | Counterbalance enabled power generator for horizontal directional drilling systems |
| GB0724900D0 (en) * | 2007-12-21 | 2008-01-30 | Schlumberger Holdings | Hybrid drilling system with mud motor |
| US8201644B2 (en) * | 2008-02-22 | 2012-06-19 | The Charles Machines Works, Inc. | Dual pipe for increased fluid flow |
| US9976360B2 (en) | 2009-03-05 | 2018-05-22 | Aps Technology, Inc. | System and method for damping vibration in a drill string using a magnetorheological damper |
| US8307914B2 (en) * | 2009-09-09 | 2012-11-13 | Schlumberger Technology Corporation | Drill bits and methods of drilling curved boreholes |
| CN101713279B (zh) * | 2009-11-04 | 2013-01-02 | 中国石油大学(北京) | 一种偏心钻具组合防斜打快技术 |
| US9080387B2 (en) * | 2010-08-03 | 2015-07-14 | Baker Hughes Incorporated | Directional wellbore control by pilot hole guidance |
| US8919458B2 (en) * | 2010-08-11 | 2014-12-30 | Schlumberger Technology Corporation | System and method for drilling a deviated wellbore |
| US9506344B2 (en) | 2011-06-01 | 2016-11-29 | Vermeer Manufacturing Company | Tunneling apparatus |
| US9404355B2 (en) | 2011-07-22 | 2016-08-02 | Schlumberger Technology Corporation | Path tracking for directional drilling as applied to attitude hold and trajectory following |
| CA2874272C (fr) | 2012-05-30 | 2021-01-05 | Tellus Oilfield, Inc. | Systeme de forage, mecanisme de rappel et procede permettant un forage directionnel d'un trou de forage |
| US9206644B2 (en) * | 2012-09-24 | 2015-12-08 | Schlumberger Technology Corporation | Positive displacement motor (PDM) rotary steerable system (RSS) and apparatus |
| US9500031B2 (en) | 2012-11-12 | 2016-11-22 | Aps Technology, Inc. | Rotary steerable drilling apparatus |
| US9371696B2 (en) | 2012-12-28 | 2016-06-21 | Baker Hughes Incorporated | Apparatus and method for drilling deviated wellbores that utilizes an internally tilted drive shaft in a drilling assembly |
| CA2901958C (fr) * | 2013-03-14 | 2021-03-16 | Charles Ingold | Outil de fond de puits decale de maniere distale avec rotation selective |
| US9617791B2 (en) | 2013-03-14 | 2017-04-11 | Smith International, Inc. | Sidetracking system and related methods |
| US9447641B2 (en) * | 2013-05-22 | 2016-09-20 | Naizhen Liu | Rotary steerable drilling tool with a linear motor |
| CN103510872B (zh) * | 2013-07-01 | 2015-10-21 | 西安石油大学 | 一种可控弯接头导向机构 |
| US9109402B1 (en) | 2014-10-09 | 2015-08-18 | Tercel Ip Ltd. | Steering assembly for directional drilling of a wellbore |
| US10260287B2 (en) | 2015-02-24 | 2019-04-16 | The Charles Machine Works, Inc. | Dual-member pipe assembly |
| CN105298389B (zh) * | 2015-11-30 | 2017-11-24 | 西安石油大学 | 一种基于偏心距相等的旋转导向钻井工具控制方法 |
| CN105484667B (zh) * | 2016-01-06 | 2018-11-02 | 无锡凯通钻具有限公司 | 一种广谱型岩石穿越导向钻头的导向转向方法 |
| US10053914B2 (en) * | 2016-01-22 | 2018-08-21 | Baker Hughes, A Ge Company, Llc | Method and application for directional drilling with an asymmetric deflecting bend |
| EP3399134B1 (fr) | 2017-05-01 | 2023-11-08 | Vermeer Manufacturing Company | Système de forage directionnel à double tige |
| WO2018212755A1 (fr) * | 2017-05-15 | 2018-11-22 | Halliburton Energy Services, Inc. | Système rotatif orientable à boîtier roulant |
| CN108457595B (zh) * | 2018-04-28 | 2023-12-08 | 四川省贝特石油技术有限公司 | 智能导向钻井动力工具 |
| US11180962B2 (en) | 2018-11-26 | 2021-11-23 | Vermeer Manufacturing Company | Dual rod directional drilling system |
| US11149501B2 (en) | 2019-03-14 | 2021-10-19 | Vermeer Manufacturing Company | Rod coupler and coupled rod assembly |
| WO2021072061A1 (fr) | 2019-10-08 | 2021-04-15 | Spindle Karlton E | Poignée d'instrument destinée à être utilisée avec un système et un procédé de rétroaction d'alignement d'instrument |
| CN111562626A (zh) * | 2020-04-21 | 2020-08-21 | 中煤科工集团西安研究院有限公司 | 一种基于重力作用下顶底板定向测量探管及定向探测装备 |
| US12584363B2 (en) | 2021-04-22 | 2026-03-24 | GR Energy Services, Management, LP | Orientable weight bar for a downhole tool and method of using same |
| CN115637925B (zh) * | 2021-07-19 | 2026-03-31 | 蓝土地能源技术有限公司 | 一种刚性传送的分支钻完井工具及其钻孔方法 |
| CN113605842B (zh) * | 2021-08-05 | 2024-04-09 | 常州大学 | 一种用于地热井的钻井台 |
| WO2023044176A1 (fr) * | 2021-09-15 | 2023-03-23 | Halliburton Energy Services, Inc. | Maniabilité améliorée d'outils de télémesure de fond de trou à l'aide d'aimants rotatifs |
| PH12022551324A1 (en) * | 2021-09-15 | 2023-11-20 | Halliburton Energy Services Inc | Improved steerability of downhole ranging tools using rotary magnets |
| US12580667B2 (en) | 2022-01-09 | 2026-03-17 | Gr Energy Services Management, Lp | Wellsite monitoring system with wellsite tracker and method of using same |
| US20240344415A1 (en) * | 2023-04-14 | 2024-10-17 | Gr Energy Services Management, Lp | Downhole tool with self- orienting swivel and method of using same |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3637032A (en) * | 1970-01-22 | 1972-01-25 | John D Jeter | Directional drilling apparatus |
| US4319649A (en) * | 1973-06-18 | 1982-03-16 | Jeter John D | Stabilizer |
| US4040494A (en) * | 1975-06-09 | 1977-08-09 | Smith International, Inc. | Drill director |
| US4100528A (en) | 1976-09-29 | 1978-07-11 | Schlumberger Technology Corporation | Measuring-while-drilling method and system having a digital motor control |
| US4103281A (en) | 1976-09-29 | 1978-07-25 | Schlumberger Technology Corporation | Measuring-while-drilling system having motor speed detection during encoding |
| US4167000A (en) | 1976-09-29 | 1979-09-04 | Schlumberger Technology Corporation | Measuring-while drilling system and method having encoder with feedback compensation |
| US4291773A (en) * | 1978-07-27 | 1981-09-29 | Evans Robert F | Strictive material deflectable collar for use in borehole angle control |
| US4461359A (en) * | 1982-04-23 | 1984-07-24 | Conoco Inc. | Rotary drill indexing system |
| US4732223A (en) * | 1984-06-12 | 1988-03-22 | Universal Downhole Controls, Ltd. | Controllable downhole directional drilling tool |
| FR2581698B1 (fr) * | 1985-05-07 | 1987-07-24 | Inst Francais Du Petrole | Ensemble permettant d'effectuer des forages orientes |
| US4637479A (en) * | 1985-05-31 | 1987-01-20 | Schlumberger Technology Corporation | Methods and apparatus for controlled directional drilling of boreholes |
| GB2190411B (en) * | 1986-05-16 | 1990-02-21 | Shell Int Research | Apparatus for directional drilling. |
| US4821815A (en) * | 1986-05-22 | 1989-04-18 | Flowmole Corporation | Technique for providing an underground tunnel utilizing a powered boring device |
| US4714118A (en) * | 1986-05-22 | 1987-12-22 | Flowmole Corporation | Technique for steering and monitoring the orientation of a powered underground boring device |
| US4811798A (en) * | 1986-10-30 | 1989-03-14 | Team Construction And Fabrication, Inc. | Drilling motor deviation tool |
| US4697651A (en) * | 1986-12-22 | 1987-10-06 | Mobil Oil Corporation | Method of drilling deviated wellbores |
| US4867255A (en) * | 1988-05-20 | 1989-09-19 | Flowmole Corporation | Technique for steering a downhole hammer |
| CA2002135C (fr) * | 1988-11-03 | 1999-02-02 | James Bain Noble | Appareil et methode de percage directionnel |
| US4895214A (en) * | 1988-11-18 | 1990-01-23 | Schoeffler William N | Directional drilling tool |
| US4995465A (en) * | 1989-11-27 | 1991-02-26 | Conoco Inc. | Rotary drillstring guidance by feedrate oscillation |
| US5220963A (en) * | 1989-12-22 | 1993-06-22 | Patton Consulting, Inc. | System for controlled drilling of boreholes along planned profile |
| EP0467642A3 (en) * | 1990-07-17 | 1993-03-10 | Camco Drilling Group Limited | Earth drilling system and method for controlling the direction of a borehole |
| CA2024061C (fr) * | 1990-08-27 | 2001-10-02 | Laurier Emile Comeau | Systeme de forage de sondages devies |
| US5103919A (en) * | 1990-10-04 | 1992-04-14 | Amoco Corporation | Method of determining the rotational orientation of a downhole tool |
| FR2671130B1 (fr) * | 1990-12-28 | 1993-04-23 | Inst Francais Du Petrole | Dispositif comportant deux elements articules dans un plan, applique a un equipement de forage. |
| US5139094A (en) * | 1991-02-01 | 1992-08-18 | Anadrill, Inc. | Directional drilling methods and apparatus |
| US5265682A (en) * | 1991-06-25 | 1993-11-30 | Camco Drilling Group Limited | Steerable rotary drilling systems |
| EP0524607A1 (fr) * | 1991-07-22 | 1993-01-27 | Toyoda Koki Kabushiki Kaisha | Amortisseur rotatif |
| FR2679957B1 (fr) * | 1991-08-02 | 1998-12-04 | Inst Francais Du Petrole | Methode et dispositif pour effectuer des mesures et/ou interventions dans un puits fore ou en cours de forage. |
| US5213168A (en) * | 1991-11-01 | 1993-05-25 | Amoco Corporation | Apparatus for drilling a curved subterranean borehole |
| US5314032A (en) * | 1993-05-17 | 1994-05-24 | Camco International Inc. | Movable joint bent sub |
-
1994
- 1994-08-05 US US08/286,291 patent/US5484029A/en not_active Expired - Lifetime
-
1995
- 1995-04-27 US US08/430,000 patent/US5529133A/en not_active Expired - Lifetime
- 1995-07-28 CA CA002154959A patent/CA2154959C/fr not_active Expired - Lifetime
- 1995-08-01 AU AU28300/95A patent/AU681302B2/en not_active Ceased
- 1995-08-03 DE DE69513340T patent/DE69513340D1/de not_active Expired - Lifetime
- 1995-08-03 EP EP95305432A patent/EP0695850B1/fr not_active Expired - Lifetime
- 1995-08-04 NO NO19953068A patent/NO310247B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0695850A2 (fr) | 1996-02-07 |
| AU2830095A (en) | 1996-02-15 |
| NO953068L (no) | 1996-02-06 |
| AU681302B2 (en) | 1997-08-21 |
| CA2154959C (fr) | 2001-03-27 |
| EP0695850B1 (fr) | 1999-11-17 |
| EP0695850A3 (fr) | 1997-06-04 |
| US5484029A (en) | 1996-01-16 |
| NO953068D0 (no) | 1995-08-04 |
| US5529133A (en) | 1996-06-25 |
| CA2154959A1 (fr) | 1996-02-06 |
| DE69513340D1 (de) | 1999-12-23 |
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