ATE166426T1 - Vorrichtung und verfahren zum bohren und ausrüsten einer vielzahl von bohrlöchern - Google Patents

Vorrichtung und verfahren zum bohren und ausrüsten einer vielzahl von bohrlöchern

Info

Publication number
ATE166426T1
ATE166426T1 AT96200898T AT96200898T ATE166426T1 AT E166426 T1 ATE166426 T1 AT E166426T1 AT 96200898 T AT96200898 T AT 96200898T AT 96200898 T AT96200898 T AT 96200898T AT E166426 T1 ATE166426 T1 AT E166426T1
Authority
AT
Austria
Prior art keywords
well bore
subterranean
tubulars
drilling
assembly
Prior art date
Application number
AT96200898T
Other languages
English (en)
Inventor
Gary J Collins
Ervin Baudoin
Original Assignee
Marathon Oil 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 Marathon Oil Co filed Critical Marathon Oil Co
Application granted granted Critical
Publication of ATE166426T1 publication Critical patent/ATE166426T1/de

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK 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
    • E21B7/043Directional drilling for underwater installations
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/004Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006"J-slot" systems, i.e. lug and slot indexing mechanisms
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/04Casing heads; Suspending casings or tubings in well heads
    • E21B33/047Casing heads; Suspending casings or tubings in well heads for plural tubing strings
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/08Underwater guide bases, e.g. drilling templates; Levelling thereof
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/14Obtaining from a multiple-zone well
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK 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
    • E21B7/061Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK 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
    • E21B7/068Deflecting 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)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling And Boring (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Fertilizing (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
AT96200898T 1993-12-20 1994-09-16 Vorrichtung und verfahren zum bohren und ausrüsten einer vielzahl von bohrlöchern ATE166426T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/170,557 US5458199A (en) 1992-08-28 1993-12-20 Assembly and process for drilling and completing multiple wells

Publications (1)

Publication Number Publication Date
ATE166426T1 true ATE166426T1 (de) 1998-06-15

Family

ID=22620340

Family Applications (2)

Application Number Title Priority Date Filing Date
AT96200898T ATE166426T1 (de) 1993-12-20 1994-09-16 Vorrichtung und verfahren zum bohren und ausrüsten einer vielzahl von bohrlöchern
AT94928156T ATE145263T1 (de) 1993-12-20 1994-09-16 Vorrichtung und verfahren um eine vielzahl von bohrungen zu bohren und auszurüsten

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT94928156T ATE145263T1 (de) 1993-12-20 1994-09-16 Vorrichtung und verfahren um eine vielzahl von bohrungen zu bohren und auszurüsten

Country Status (19)

Country Link
US (1) US5458199A (de)
EP (2) EP0735236B1 (de)
JP (1) JP2799522B2 (de)
CN (1) CN1058547C (de)
AT (2) ATE166426T1 (de)
AU (1) AU675359B2 (de)
BR (1) BR9405602A (de)
CA (1) CA2152383C (de)
CO (1) CO4370790A1 (de)
DE (2) DE69400907T2 (de)
DK (2) DK0674744T3 (de)
DZ (1) DZ1832A1 (de)
EG (1) EG20652A (de)
ES (2) ES2116805T3 (de)
NO (1) NO309623B1 (de)
NZ (1) NZ273847A (de)
RU (1) RU2107142C1 (de)
TN (1) TNSN94134A1 (de)
WO (1) WO1995017580A1 (de)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803176A (en) 1996-01-24 1998-09-08 Weatherford/Lamb, Inc. Sidetracking operations
US5560435A (en) * 1995-04-11 1996-10-01 Abb Vecto Gray Inc. Method and apparatus for drilling multiple offshore wells from within a single conductor string
WO1997009508A1 (en) * 1995-09-01 1997-03-13 Chevron U.S.A. Inc. Method and apparatus for drilling multiple wells from a low load platform
US5865260A (en) * 1995-09-01 1999-02-02 Chevron U.S.A. Inc. Method and apparatus for drilling multiple wells from a platform
US5941308A (en) * 1996-01-26 1999-08-24 Schlumberger Technology Corporation Flow segregator for multi-drain well completion
US6283216B1 (en) 1996-03-11 2001-09-04 Schlumberger Technology Corporation Apparatus and method for establishing branch wells from a parent well
US5944107A (en) * 1996-03-11 1999-08-31 Schlumberger Technology Corporation Method and apparatus for establishing branch wells at a node of a parent well
US6732801B2 (en) 1996-03-11 2004-05-11 Schlumberger Technology Corporation Apparatus and method for completing a junction of plural wellbores
US6056059A (en) 1996-03-11 2000-05-02 Schlumberger Technology Corporation Apparatus and method for establishing branch wells from a parent well
US5775420A (en) * 1996-03-18 1998-07-07 Mitchell; Morton Lindsay Dual string assembly for gas wells
CA2210561C (en) 1996-07-15 2004-04-06 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
AU719919B2 (en) 1996-07-15 2000-05-18 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
CA2210563C (en) 1996-07-15 2004-03-02 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
US5833003A (en) 1996-07-15 1998-11-10 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
US5730221A (en) 1996-07-15 1998-03-24 Halliburton Energy Services, Inc Methods of completing a subterranean well
US5813465A (en) 1996-07-15 1998-09-29 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
CA2209958A1 (en) 1996-07-15 1998-01-15 James M. Barker Apparatus for completing a subterranean well and associated methods of using same
US5862862A (en) 1996-07-15 1999-01-26 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
AU714721B2 (en) 1996-07-15 2000-01-06 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
US5810086A (en) 1996-12-05 1998-09-22 Abb Vetco Gray Inc. Single riser with two wellheads
US5918675A (en) * 1996-12-05 1999-07-06 Abb Vetco Gray Inc. Close proximity wellheads
US6142235A (en) * 1996-12-05 2000-11-07 Abb Vetco Gray Inc. Bottom-supported guidance device for alignment of multiple wellbores in a single conductor
US5813468A (en) * 1996-12-26 1998-09-29 Abb Vetco Gray Inc. Dual casing hanger
US6079493A (en) * 1997-02-13 2000-06-27 Halliburton Energy Services, Inc. Methods of completing a subterranean well and associated apparatus
US6012529A (en) * 1998-06-22 2000-01-11 Mikolajczyk; Raymond F. Downhole guide member for multiple casing strings
US6182760B1 (en) 1998-07-20 2001-02-06 Union Oil Company Of California Supplementary borehole drilling
CA2244451C (en) * 1998-07-31 2002-01-15 Dresser Industries, Inc. Multiple string completion apparatus and method
US6209648B1 (en) 1998-11-19 2001-04-03 Schlumberger Technology Corporation Method and apparatus for connecting a lateral branch liner to a main well bore
US6615920B1 (en) 2000-03-17 2003-09-09 Marathon Oil Company Template and system of templates for drilling and completing offset well bores
US6318458B1 (en) * 2000-03-31 2001-11-20 Robert W. Rainey Water-well-head adaptor
US6543553B2 (en) 2001-01-29 2003-04-08 Chevron Nigeria Limited Apparatus for use in drilling oil and gas production wells or water injection wells
WO2003004830A1 (en) * 2001-07-03 2003-01-16 Fmc Technologies, Inc. High pressure side-by-side wellhead system
WO2003021076A1 (en) * 2001-08-29 2003-03-13 Fmc Technologies, Inc. Drilling alignment system
US7066267B2 (en) * 2003-08-26 2006-06-27 Dril-Quip, Inc. Downhole tubular splitter assembly and method
US7712524B2 (en) * 2006-03-30 2010-05-11 Schlumberger Technology Corporation Measuring a characteristic of a well proximate a region to be gravel packed
US7735555B2 (en) * 2006-03-30 2010-06-15 Schlumberger Technology Corporation Completion system having a sand control assembly, an inductive coupler, and a sensor proximate to the sand control assembly
US7793718B2 (en) 2006-03-30 2010-09-14 Schlumberger Technology Corporation Communicating electrical energy with an electrical device in a well
US8056619B2 (en) 2006-03-30 2011-11-15 Schlumberger Technology Corporation Aligning inductive couplers in a well
WO2010091103A1 (en) * 2009-02-03 2010-08-12 David Randolph Smith Method and apparatus to construct and log a well
EP2456947B1 (de) * 2009-07-23 2018-03-28 BP Corporation North America Inc. Offshore-bohrsystem
US8839850B2 (en) * 2009-10-07 2014-09-23 Schlumberger Technology Corporation Active integrated completion installation system and method
US20110192596A1 (en) * 2010-02-07 2011-08-11 Schlumberger Technology Corporation Through tubing intelligent completion system and method with connection
AU2011319923B2 (en) * 2010-10-27 2015-09-10 Shell Internationale Research Maatschappij B.V. Downhole multiple well
US9249559B2 (en) 2011-10-04 2016-02-02 Schlumberger Technology Corporation Providing equipment in lateral branches of a well
US9644476B2 (en) 2012-01-23 2017-05-09 Schlumberger Technology Corporation Structures having cavities containing coupler portions
US9175560B2 (en) 2012-01-26 2015-11-03 Schlumberger Technology Corporation Providing coupler portions along a structure
RU2488687C1 (ru) * 2012-02-13 2013-07-27 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Способ одновременно-раздельной эксплуатации нагнетательной скважины
US9938823B2 (en) 2012-02-15 2018-04-10 Schlumberger Technology Corporation Communicating power and data to a component in a well
US10036234B2 (en) 2012-06-08 2018-07-31 Schlumberger Technology Corporation Lateral wellbore completion apparatus and method
RU2530003C1 (ru) * 2013-06-24 2014-10-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Способ ликвидации скважины
CN108756749A (zh) * 2013-07-25 2018-11-06 哈里伯顿能源服务公司 用于使外圆角组件偏转的方法
CN105324549B (zh) * 2013-07-25 2017-06-13 哈里伯顿能源服务公司 与钻井孔偏转器组件一起使用的可调整外圆角组件
US9260945B2 (en) * 2013-07-25 2016-02-16 Halliburton Energy Services, Inc. Expandable and variable-length bullnose assembly for use with a wellbore deflector assembly
US9638008B2 (en) * 2013-07-25 2017-05-02 Halliburton Energy Services, Inc. Expandable bullnose assembly for use with a wellbore deflector
US20160208586A1 (en) * 2013-08-07 2016-07-21 Schlumberger Technology Corporation System and methodology for running casing strings through a conductor tube
RU2534309C1 (ru) * 2013-08-13 2014-11-27 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Способ ликвидации скважины
RU2541007C1 (ru) * 2014-01-21 2015-02-10 Открытое акционерное общество "Севернефтегазпром" Способ герметизации резьбового соединения муфта кондуктора-монтажный патрубок колонной головки на скважине без вывода в капитальный ремонт
WO2015183231A1 (en) * 2014-05-29 2015-12-03 Halliburton Energy Services, Inc. Forming multilateral wells
US9670732B1 (en) * 2016-01-14 2017-06-06 Chevron U.S.A. Inc. Batch drilling using multiple mudline closure devices
US9670733B1 (en) * 2016-01-21 2017-06-06 Ge Oil & Gas Pressure Control Lp Subsea multibore drilling and completion system
RU2626491C1 (ru) * 2016-05-11 2017-07-28 Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский государственный университет нефти и газа (национальный исследовательский университет) имени И.М. Губкина" Способ разработки многопластовых нефтяных залежей с гидродинамически связанными пластами
RU2678745C1 (ru) * 2017-12-28 2019-01-31 Публичное акционерное общество "Татнефть" имени В.Д. Шашина Способ эксплуатации нагнетательной скважины малого диаметра с однолифтовой двухпакерной компоновкой
CN108533206B (zh) * 2018-05-14 2023-07-07 中国石油天然气集团有限公司 双级套管头
US11111749B2 (en) * 2019-05-14 2021-09-07 Saudi Arabian Oil Company Correcting offsets in wellbore tubulars
US11053781B2 (en) 2019-06-12 2021-07-06 Saudi Arabian Oil Company Laser array drilling tool and related methods
RU2720727C1 (ru) * 2019-10-22 2020-05-13 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Способ определения герметичности скважинного оборудования для одновременно-раздельной эксплуатации
US11319756B2 (en) 2020-08-19 2022-05-03 Saudi Arabian Oil Company Hybrid reamer and stabilizer

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1900163A (en) * 1931-05-02 1933-03-07 Dana Drexler Method and apparatus for drilling oil wells
US1900164A (en) * 1932-07-05 1933-03-07 Dana Drexler Method and apparatus for drilling oil wells
US2492079A (en) * 1943-12-09 1949-12-20 Eastman Oil Well Survey Co Apparatus for completing wells
US2794505A (en) * 1955-11-04 1957-06-04 Cameron Iron Works Inc Pipe hanging apparatus
US3050120A (en) * 1955-11-25 1962-08-21 Pan American Petroleum Corp Method and apparatus for completing wells
US3052301A (en) * 1957-05-15 1962-09-04 Gray Tool Co Multiple tubing string well completion equipment
US3011552A (en) * 1957-09-26 1961-12-05 Mcevoy Co Apparatus for setting pipes in tension
US3118502A (en) * 1960-02-24 1964-01-21 Cicero C Brown Well completion apparatus
US3223168A (en) * 1960-03-28 1965-12-14 Gulf Oil Corp Well head apparatus
US3100529A (en) * 1960-06-06 1963-08-13 Jersey Prod Res Co Apparatus for positioning well pipe
US3269755A (en) * 1961-01-24 1966-08-30 Fmc Corp Well installation
US3330355A (en) * 1963-10-03 1967-07-11 Fmc Corp Method for installing a well
US3653435A (en) * 1970-08-14 1972-04-04 Exxon Production Research Co Multi-string tubingless completion technique
US3770053A (en) * 1971-12-14 1973-11-06 Fmc Corp Ocean bottom well tubing valve installation
US3848669A (en) * 1972-11-29 1974-11-19 C Brown Well control apparatus
US4044830A (en) * 1973-07-02 1977-08-30 Huisen Allen T Van Multiple-completion geothermal energy production systems
US3875999A (en) * 1974-07-15 1975-04-08 John E Liberg Well capping assembly
US4068729A (en) * 1976-06-14 1978-01-17 Standard Oil Company (Indiana) Apparatus for multiple wells through a single caisson
US4444276A (en) * 1980-11-24 1984-04-24 Cities Service Company Underground radial pipe network
US4396075A (en) * 1981-06-23 1983-08-02 Wood Edward T Multiple branch completion with common drilling and casing template
US4415205A (en) * 1981-07-10 1983-11-15 Rehm William A Triple branch completion with separate drilling and completion templates
FR2551491B1 (fr) * 1983-08-31 1986-02-28 Elf Aquitaine Dispositif de forage et de mise en production petroliere multidrains
US4749046A (en) * 1986-05-28 1988-06-07 Otis Engineering Corporation Well drilling and completion apparatus
US4832381A (en) * 1987-09-09 1989-05-23 Cameron Iron Works Usa, Inc. Seal
US4822212A (en) * 1987-10-28 1989-04-18 Amoco Corporation Subsea template and method for using the same

Also Published As

Publication number Publication date
ES2116805T3 (es) 1998-07-16
CO4370790A1 (es) 1996-10-07
WO1995017580A1 (en) 1995-06-29
NO309623B1 (no) 2001-02-26
AU7730794A (en) 1995-07-10
DK0735236T3 (da) 1998-10-07
EG20652A (en) 1999-10-31
TNSN94134A1 (fr) 1995-09-21
EP0735236A1 (de) 1996-10-02
AU675359B2 (en) 1997-01-30
DE69400907D1 (de) 1996-12-19
NO951991D0 (no) 1995-05-19
DE69410484T2 (de) 1999-01-07
EP0674744A1 (de) 1995-10-04
JPH08501365A (ja) 1996-02-13
JP2799522B2 (ja) 1998-09-17
RU2107142C1 (ru) 1998-03-20
NZ273847A (en) 1997-01-29
DK0674744T3 (de) 1997-02-24
DE69410484D1 (de) 1998-06-25
DZ1832A1 (fr) 2002-02-17
EP0735236B1 (de) 1998-05-20
BR9405602A (pt) 1999-09-08
NO951991L (no) 1995-06-29
ES2094662T3 (es) 1997-01-16
CN1115185A (zh) 1996-01-17
ATE145263T1 (de) 1996-11-15
DE69400907T2 (de) 1997-04-10
CN1058547C (zh) 2000-11-15
CA2152383C (en) 1999-03-16
CA2152383A1 (en) 1995-06-29
US5458199A (en) 1995-10-17
EP0674744B1 (de) 1996-11-13

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