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NO884249D0 - Fremgangsmaate og utstyr for aa danne flere broenner fra en enkelt broennboring. - Google Patents

Fremgangsmaate og utstyr for aa danne flere broenner fra en enkelt broennboring.

Info

Publication number
NO884249D0
NO884249D0 NO884249A NO884249A NO884249D0 NO 884249 D0 NO884249 D0 NO 884249D0 NO 884249 A NO884249 A NO 884249A NO 884249 A NO884249 A NO 884249A NO 884249 D0 NO884249 D0 NO 884249D0
Authority
NO
Norway
Prior art keywords
burns
drill
procedure
much
equipment
Prior art date
Application number
NO884249A
Other languages
English (en)
Other versions
NO884249L (no
Inventor
Frank H Hsu
James A Dech
Original Assignee
Atlantic Richfield 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 Atlantic Richfield Co filed Critical Atlantic Richfield Co
Publication of NO884249D0 publication Critical patent/NO884249D0/no
Publication of NO884249L publication Critical patent/NO884249L/no

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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches

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)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
NO88884249A 1987-09-28 1988-09-26 Fremgangsmaate og utstyr for aa danne flere broenner fra en enkelt broennboring. NO884249L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/101,515 US4807704A (en) 1987-09-28 1987-09-28 System and method for providing multiple wells from a single wellbore

Publications (2)

Publication Number Publication Date
NO884249D0 true NO884249D0 (no) 1988-09-26
NO884249L NO884249L (no) 1989-03-29

Family

ID=22285050

Family Applications (1)

Application Number Title Priority Date Filing Date
NO88884249A NO884249L (no) 1987-09-28 1988-09-26 Fremgangsmaate og utstyr for aa danne flere broenner fra en enkelt broennboring.

Country Status (4)

Country Link
US (1) US4807704A (no)
EP (1) EP0310215A1 (no)
CA (1) CA1327036C (no)
NO (1) NO884249L (no)

Families Citing this family (129)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978172A (en) * 1989-10-26 1990-12-18 Resource Enterprises, Inc. Gob methane drainage system
FR2656650B1 (fr) * 1989-12-29 1995-09-01 Inst Francais Du Petrole Methode et dispositif pour stimuler une zone souterraine par injection controlee de fluide provenant d'une zone voisine que l'on relie a la premiere par un drain traversant une couche intermediaire peu permeable.
FR2692315B1 (fr) * 1992-06-12 1994-09-02 Inst Francais Du Petrole Système et méthode de forage et d'équipement d'un puits latéral, application à l'exploitation de gisement pétrolier.
FR2692316B1 (fr) * 1992-06-12 1995-08-18 Inst Francais Du Petrole Systeme et methode de forage et d'equipement de forage lateral, application a l'exploitation de gisement petrolier.
US5311936A (en) * 1992-08-07 1994-05-17 Baker Hughes Incorporated Method and apparatus for isolating one horizontal production zone in a multilateral well
US5318122A (en) * 1992-08-07 1994-06-07 Baker Hughes, Inc. Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means
US5353876A (en) * 1992-08-07 1994-10-11 Baker Hughes Incorporated Method and apparatus for sealing the juncture between a verticle well and one or more horizontal wells using mandrel means
US5477923A (en) * 1992-08-07 1995-12-26 Baker Hughes Incorporated Wellbore completion using measurement-while-drilling techniques
US5322127C1 (en) * 1992-08-07 2001-02-06 Baker Hughes Inc Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells
GB2298441B (en) * 1992-08-07 1996-12-04 Baker Hughes Inc Method and apparatus for sealing the juncture between a vertical and horizontal well
US5318121A (en) * 1992-08-07 1994-06-07 Baker Hughes Incorporated Method and apparatus for locating and re-entering one or more horizontal wells using whipstock with sealable bores
US5474131A (en) * 1992-08-07 1995-12-12 Baker Hughes Incorporated Method for completing multi-lateral wells and maintaining selective re-entry into laterals
US5454430A (en) * 1992-08-07 1995-10-03 Baker Hughes Incorporated Scoophead/diverter assembly for completing lateral wellbores
US5325924A (en) * 1992-08-07 1994-07-05 Baker Hughes Incorporated Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means
GB2278138B (en) * 1992-10-19 1997-01-22 Baker Hughes Inc Retrievable whipstock system
US5462120A (en) 1993-01-04 1995-10-31 S-Cal Research Corp. Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes
US5427177A (en) * 1993-06-10 1995-06-27 Baker Hughes Incorporated Multi-lateral selective re-entry tool
WO1994029563A1 (en) * 1993-06-10 1994-12-22 Baker Hughes Incorporated Method for completing multi-lateral wells and maintaining selective re-entry into laterals
US5727629A (en) * 1996-01-24 1998-03-17 Weatherford/Lamb, Inc. Wellbore milling guide and method
US5425417A (en) * 1993-09-10 1995-06-20 Weatherford U.S., Inc. Wellbore tool setting system
US5452759A (en) * 1993-09-10 1995-09-26 Weatherford U.S., Inc. Whipstock system
US5720349A (en) * 1995-10-12 1998-02-24 Weatherford U.S., Inc. Starting mill and operations
US5787978A (en) * 1995-03-31 1998-08-04 Weatherford/Lamb, Inc. Multi-face whipstock with sacrificial face element
US5826651A (en) * 1993-09-10 1998-10-27 Weatherford/Lamb, Inc. Wellbore single trip milling
US5836387A (en) * 1993-09-10 1998-11-17 Weatherford/Lamb, Inc. System for securing an item in a tubular channel in a wellbore
US6024168A (en) * 1996-01-24 2000-02-15 Weatherford/Lamb, Inc. Wellborne mills & methods
US5388648A (en) * 1993-10-08 1995-02-14 Baker Hughes Incorporated Method and apparatus for sealing the juncture between a vertical well and one or more horizontal wells using deformable sealing means
US5361833A (en) * 1993-11-18 1994-11-08 Triumph*Lor, Inc. Bottom set, non-retrievable whipstock assembly
US5472048A (en) * 1994-01-26 1995-12-05 Baker Hughes Incorporated Parallel seal assembly
US5439051A (en) * 1994-01-26 1995-08-08 Baker Hughes Incorporated Lateral connector receptacle
US5435392A (en) * 1994-01-26 1995-07-25 Baker Hughes Incorporated Liner tie-back sleeve
US5411082A (en) * 1994-01-26 1995-05-02 Baker Hughes Incorporated Scoophead running tool
US5564503A (en) 1994-08-26 1996-10-15 Halliburton Company Methods and systems for subterranean multilateral well drilling and completion
NO953304L (no) 1994-08-26 1996-02-27 Halliburton Co Avleder og verktöy for innföring og opphenting av denne, samt tilhörende fremgangsmåte
US5566763A (en) 1994-08-26 1996-10-22 Halliburton Company Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion
NO953303L (no) 1994-08-26 1996-02-27 Halliburton Co Kompositt brönnproduksjonsrör
US5535822A (en) * 1994-09-08 1996-07-16 Enterra Corporation Apparatus for retrieving whipstock
GB2320735B (en) * 1994-09-15 1998-11-04 Baker Hughes Inc Cementing method for multi-lateral completion and the juncture with lateral wellbores
US5526880A (en) * 1994-09-15 1996-06-18 Baker Hughes Incorporated Method for multi-lateral completion and cementing the juncture with lateral wellbores
US6868906B1 (en) * 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US5477925A (en) * 1994-12-06 1995-12-26 Baker Hughes Incorporated Method for multi-lateral completion and cementing the juncture with lateral wellbores
US5484017A (en) * 1995-01-12 1996-01-16 Baker Hughes Incorporated Whipstock assembly for a sleeved casing
US5762149A (en) * 1995-03-27 1998-06-09 Baker Hughes Incorporated Method and apparatus for well bore construction
US6056056A (en) * 1995-03-31 2000-05-02 Durst; Douglas G. Whipstock mill
US5803176A (en) * 1996-01-24 1998-09-08 Weatherford/Lamb, Inc. Sidetracking operations
US5685373A (en) * 1995-07-26 1997-11-11 Marathon Oil Company Assembly and process for drilling and completing multiple wells
US5785133A (en) * 1995-08-29 1998-07-28 Tiw Corporation Multiple lateral hydrocarbon recovery system and method
US5697445A (en) * 1995-09-27 1997-12-16 Natural Reserves Group, Inc. Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means
US5715891A (en) * 1995-09-27 1998-02-10 Natural Reserves Group, Inc. Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access
US5878815A (en) * 1995-10-26 1999-03-09 Marathon Oil Company Assembly and process for drilling and completing multiple wells
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
US6283216B1 (en) 1996-03-11 2001-09-04 Schlumberger Technology Corporation Apparatus and method for establishing branch wells from a parent well
US6056059A (en) * 1996-03-11 2000-05-02 Schlumberger Technology Corporation Apparatus and method for establishing branch wells from a parent well
US6142225A (en) * 1996-05-01 2000-11-07 Baker Hughes Incorporated Selective mono bore diverter system
US6155349A (en) * 1996-05-02 2000-12-05 Weatherford/Lamb, Inc. Flexible wellbore mill
CA2210563C (en) * 1996-07-15 2004-03-02 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
CA2209958A1 (en) * 1996-07-15 1998-01-15 James M. Barker 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
US5813465A (en) * 1996-07-15 1998-09-29 Halliburton Energy Services, Inc. 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
NO313763B1 (no) * 1996-07-15 2002-11-25 Halliburton Energy Serv Inc Fremgangsmåte ved reetablering av adgang til en brönnboring og styredel til bruk ved tildannelse av en åpning i en brönnfôring
AU719919B2 (en) * 1996-07-15 2000-05-18 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
GB2320273A (en) * 1996-08-08 1998-06-17 Baker Hughes Inc Method for forming a casing window
NO311905B1 (no) * 1996-08-13 2002-02-11 Baker Hughes Inc Fôringsrörsegment, samt fremgangsmåte for å danne et vindu i et fôringsrörsegment
US5944108A (en) * 1996-08-29 1999-08-31 Baker Hughes Incorporated Method for multi-lateral completion and cementing the juncture with lateral wellbores
WO1998009054A1 (en) 1996-08-30 1998-03-05 Baker Hughes Incorporated Cement reinforced inflatable seal for a junction of a multilateral
GB9619951D0 (en) * 1996-09-25 1996-11-13 Red Baron Oil Tools Rental Improvements in and relating to formation of laterals
US6012527A (en) * 1996-10-01 2000-01-11 Schlumberger Technology Corporation Method and apparatus for drilling and re-entering multiple lateral branched in a well
US5806614A (en) * 1997-01-08 1998-09-15 Nelson; Jack R. Apparatus and method for drilling lateral wells
US6125937A (en) * 1997-02-13 2000-10-03 Halliburton Energy Services, Inc. Methods of completing a subterranean well and associated apparatus
US5845710A (en) * 1997-02-13 1998-12-08 Halliburton Energy Services, Inc. Methods of completing a subterranean well
US5884704A (en) 1997-02-13 1999-03-23 Halliburton Energy Services, Inc. Methods of completing a subterranean well and associated apparatus
US6079493A (en) 1997-02-13 2000-06-27 Halliburton Energy Services, Inc. Methods of completing a subterranean well and associated apparatus
US5845707A (en) * 1997-02-13 1998-12-08 Halliburton Energy Services, Inc. Method of completing a subterranean well
DK1042587T3 (da) * 1997-06-09 2006-11-27 Conocophillips Co System til boring og komplettering af multilaterale borebrönde
GB9714651D0 (en) 1997-07-12 1997-09-17 Petroline Wellsystems Ltd Downhole tubing
US5960873A (en) * 1997-09-16 1999-10-05 Mobil Oil Corporation Producing fluids from subterranean formations through lateral wells
GB9723031D0 (en) 1997-11-01 1998-01-07 Petroline Wellsystems Ltd Downhole tubing location method
US6044909A (en) * 1997-12-04 2000-04-04 Halliburton Energy Services, Inc. Apparatus and methods for locating tools in subterranean wells
US5992525A (en) * 1998-01-09 1999-11-30 Halliburton Energy Services, Inc. Apparatus and methods for deploying tools in multilateral wells
US6138761A (en) 1998-02-24 2000-10-31 Halliburton Energy Services, Inc. Apparatus and methods for completing a wellbore
US6142229A (en) * 1998-09-16 2000-11-07 Atlantic Richfield Company Method and system for producing fluids from low permeability formations
EP1147287B1 (en) * 1998-12-22 2005-08-17 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US7188687B2 (en) * 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
EP1510651B1 (en) 1998-12-22 2008-07-02 Weatherford/Lamb, Inc. Method and apparatus for expanding a liner patch
GB0224807D0 (en) * 2002-10-25 2002-12-04 Weatherford Lamb Downhole filter
US6354375B1 (en) * 1999-01-15 2002-03-12 Smith International, Inc. Lateral well tie-back method and apparatus
MY121129A (en) * 1999-02-01 2005-12-30 Shell Int Research Method for creating secondary sidetracks in a well system
CA2367613C (en) 1999-04-19 2006-08-08 Schlumberger Canada Limited Dual diverter and orientation device for multilateral completions and method
US6209649B1 (en) * 1999-08-10 2001-04-03 Camco International, Inc Selective re-entry tool for multiple tubing completions and method of using
GB9921557D0 (en) 1999-09-14 1999-11-17 Petroline Wellsystems Ltd Downhole apparatus
US6325148B1 (en) 1999-12-22 2001-12-04 Weatherford/Lamb, Inc. Tools and methods for use with expandable tubulars
US6598678B1 (en) 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
CA2406663C (en) 2000-05-05 2006-01-03 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US6427777B1 (en) 2000-12-18 2002-08-06 Kmk Trust Multilateral well drilling and reentry system and method
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
US6568480B2 (en) 2001-05-03 2003-05-27 Smith International, Inc. Orientation and locator system and method of use
US7172027B2 (en) * 2001-05-15 2007-02-06 Weatherford/Lamb, Inc. Expanding tubing
US6732806B2 (en) 2002-01-29 2004-05-11 Weatherford/Lamb, Inc. One trip expansion method and apparatus for use in a wellbore
US6789628B2 (en) * 2002-06-04 2004-09-14 Halliburton Energy Services, Inc. Systems and methods for controlling flow and access in multilateral completions
US6622792B1 (en) 2002-08-14 2003-09-23 Kmk Trust Apparatus and method for improving multilateral well formation and reentry
NO336220B1 (no) * 2002-11-07 2015-06-22 Weatherford Lamb Anordning og fremgangsmåte for å komplettere brønnboringsforbindelser.
WO2004063522A1 (en) * 2003-01-15 2004-07-29 Shell Internationale Research Maatschappij B.V. Wellstring assembly
WO2004081333A2 (en) * 2003-03-10 2004-09-23 Exxonmobil Upstream Research Company A method and apparatus for a downhole excavation in a wellbore
WO2004094783A1 (en) 2003-04-24 2004-11-04 Shell Internationale Research Maatschappij B.V. Well string assembly
US7066267B2 (en) * 2003-08-26 2006-06-27 Dril-Quip, Inc. Downhole tubular splitter assembly and method
US7308944B2 (en) * 2003-10-07 2007-12-18 Weatherford/Lamb, Inc. Expander tool for use in a wellbore
US7207390B1 (en) 2004-02-05 2007-04-24 Cdx Gas, Llc Method and system for lining multilateral wells
US7299864B2 (en) * 2004-12-22 2007-11-27 Cdx Gas, Llc Adjustable window liner
US7373984B2 (en) 2004-12-22 2008-05-20 Cdx Gas, Llc Lining well bore junctions
WO2006116285A2 (en) * 2005-04-22 2006-11-02 Schick, Robert, C. Apparatus and method for improving multilateral well formation and reentry
US8408315B2 (en) * 2008-12-12 2013-04-02 Smith International, Inc. Multilateral expandable seal
US8069920B2 (en) * 2009-04-02 2011-12-06 Knight Information Systems, L.L.C. Lateral well locator and reentry apparatus and method
US9309762B2 (en) 2011-08-31 2016-04-12 Teledrill, Inc. Controlled full flow pressure pulser for measurement while drilling (MWD) device
US9133664B2 (en) 2011-08-31 2015-09-15 Teledrill, Inc. Controlled pressure pulser for coiled tubing applications
US9540921B2 (en) 2011-09-20 2017-01-10 Saudi Arabian Oil Company Dual purpose observation and production well
US9702204B2 (en) 2014-04-17 2017-07-11 Teledrill, Inc. Controlled pressure pulser for coiled tubing measurement while drilling applications
US10633968B2 (en) 2011-12-23 2020-04-28 Teledrill, Inc. Controlled pressure pulser for coiled tubing measurement while drilling applications
CA2880924C (en) * 2012-08-03 2020-07-21 Conocophillips Company Well configurations for limited reflux
WO2014109962A1 (en) 2013-01-08 2014-07-17 Knight Information Systems, Llc Multi-window lateral well locator/reentry apparatus and method
AU2013377914B2 (en) * 2013-02-06 2016-07-28 Halliburton Energy Services, Inc. Systems and methods for rotationally orienting a whipstock assembly
WO2014182933A1 (en) 2013-05-08 2014-11-13 Conocophillips Company Polyol for improving sweep efficiency in oil reservoirs
US10006264B2 (en) 2014-05-29 2018-06-26 Weatherford Technology Holdings, Llc Whipstock assembly having anchor and eccentric packer
WO2016108814A1 (en) 2014-12-29 2016-07-07 Halliburton Energy Services, Inc. Multilateral junction with wellbore isolation
US10655433B2 (en) 2014-12-29 2020-05-19 Halliburton Energy Services, Inc. Multilateral junction with wellbore isolation using degradable isolation components
US10883313B2 (en) * 2015-11-10 2021-01-05 Halliburton Energy Services, Inc. Apparatus and method for drilling deviated wellbores
CN112627778B (zh) * 2020-12-18 2023-02-21 中海石油(中国)有限公司 分支井双管完井管柱系统及其施工方法和采油方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170518A (en) * 1960-05-23 1965-02-23 Brown Oil Tools Well method and apparatus which is particularly adapted for use in multiple zone wells
US4067385A (en) * 1976-09-29 1978-01-10 Exxon Production Research Company Apparatus and method for connecting a tubing string to downhole well equipment
US4304299A (en) * 1980-07-21 1981-12-08 Baker International Corporation Method for setting and orienting a whipstock in a well conduit
US4396230A (en) * 1981-06-23 1983-08-02 Wood Edward T Multiple branch well containing one producer and one injector well
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
US4402551A (en) * 1981-09-10 1983-09-06 Wood Edward T Method and apparatus to complete horizontal drain holes
FR2551491B1 (fr) * 1983-08-31 1986-02-28 Elf Aquitaine Dispositif de forage et de mise en production petroliere multidrains

Also Published As

Publication number Publication date
CA1327036C (en) 1994-02-15
NO884249L (no) 1989-03-29
EP0310215A1 (en) 1989-04-05
US4807704A (en) 1989-02-28

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