GB2320273A - Method for forming a casing window - Google Patents

Method for forming a casing window

Info

Publication number
GB2320273A
GB2320273A GB9805775A GB9805775A GB2320273A GB 2320273 A GB2320273 A GB 2320273A GB 9805775 A GB9805775 A GB 9805775A GB 9805775 A GB9805775 A GB 9805775A GB 2320273 A GB2320273 A GB 2320273A
Authority
GB
United Kingdom
Prior art keywords
window
cuts
tool
casing
whipstock
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.)
Withdrawn
Application number
GB9805775A
Other versions
GB9805775D0 (en
GB2320273A8 (en
Inventor
Harrold D Owen
Philip M Snider
Robert R Green
Greg Nazzal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of GB9805775D0 publication Critical patent/GB9805775D0/en
Publication of GB2320273A publication Critical patent/GB2320273A/en
Publication of GB2320273A8 publication Critical patent/GB2320273A8/en
Withdrawn legal-status Critical Current

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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/024—Determining slope or direction of devices in the borehole
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/02—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground by explosives or by thermal or chemical means
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/119—Details, e.g. for locating perforating place or direction

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)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Glass Compositions (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Receiving Elements (AREA)

Abstract

The method and apparatus of the present invention allow the creation of a window in casing downhole using explosive techniques. Locating stakes (10) are initially placed and subsequently surveyed for their depth and orientation. The window-cutting tool locates itself on one of the stakes, and the explosive charges are oriented with respect to the lug downhole so that when the tool is fired, the cuts are made with the appropriate orientation at the proper depth. In the preferred embodiment, horizontal cuts are made, followed by vertical cuts. The tool has the capability of positioning itself adjacent the casing which is to be explosively cut. The strips that are created after the horizontal and vertical cuts are concluded are fished out using a variety of alternative techniques. Another locating or orienting lug, which has been initially installed, can subsequently be used to locate and orient an anchoring device for a whipstock so that the sloping face of the whipstock is pointed directly at the window that has just been explosively cut.
GB9805775A 1996-08-08 1997-08-08 Method for forming a casing window Withdrawn GB2320273A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2373896P 1996-08-08 1996-08-08
PCT/US1997/013937 WO1998005845A1 (en) 1996-08-08 1997-08-08 Method for forming a casing window

Publications (3)

Publication Number Publication Date
GB9805775D0 GB9805775D0 (en) 1998-05-13
GB2320273A true GB2320273A (en) 1998-06-17
GB2320273A8 GB2320273A8 (en) 1998-07-07

Family

ID=21816917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9805775A Withdrawn GB2320273A (en) 1996-08-08 1997-08-08 Method for forming a casing window

Country Status (5)

Country Link
AU (1) AU3973797A (en)
CA (1) CA2232941A1 (en)
GB (1) GB2320273A (en)
NO (1) NO981584D0 (en)
WO (1) WO1998005845A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2531709A (en) * 2014-10-20 2016-05-04 Nat Grid Gas Plc Apparatus and method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2259776C (en) 1999-01-21 2001-07-31 Ian B. Zeer Magnetic assembly for use with a downhole casing perforator
EP1340881A1 (en) * 2002-03-01 2003-09-03 Shell Internationale Researchmaatschappij B.V. Explosive window cutting apparatus and method
US6848504B2 (en) 2002-07-26 2005-02-01 Charles G. Brunet Apparatus and method to complete a multilateral junction
US20070267196A1 (en) * 2006-05-17 2007-11-22 Maximiliano Mondelli Downhole activated packer plug magnetic debris tool
US20080236829A1 (en) * 2007-03-26 2008-10-02 Lynde Gerald D Casing profiling and recovery system
RU2645059C1 (en) * 2016-10-19 2018-02-15 федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Method of rimose hydrosand-blast perforation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679898A (en) * 1949-11-15 1954-06-01 Lane Wells Co Oriented gun perforating
US3791043A (en) * 1971-06-09 1974-02-12 Scient Drilling Controls Indicating instruments
US4304299A (en) * 1980-07-21 1981-12-08 Baker International Corporation Method for setting and orienting a whipstock in a well conduit
US4646831A (en) * 1984-09-14 1987-03-03 Develco, Incorporated Precision connector for well instrumentation
US4807704A (en) * 1987-09-28 1989-02-28 Atlantic Richfield Company System and method for providing multiple wells from a single wellbore
US5458209A (en) * 1992-06-12 1995-10-17 Institut Francais Du Petrole Device, system and method for drilling and completing a lateral well
GB2304760A (en) * 1995-08-29 1997-03-26 Tiw Corp Multiple lateral hydrocarbon recovery system and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942438A1 (en) 1989-12-22 1991-07-11 Eastman Christensen Co DEVICE FOR DRILLING A SUB-DRILLING OR DEFLECTING DRILL OF A PARTICULARLY PIPED HOLE

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679898A (en) * 1949-11-15 1954-06-01 Lane Wells Co Oriented gun perforating
US3791043A (en) * 1971-06-09 1974-02-12 Scient Drilling Controls Indicating instruments
US4304299A (en) * 1980-07-21 1981-12-08 Baker International Corporation Method for setting and orienting a whipstock in a well conduit
US4646831A (en) * 1984-09-14 1987-03-03 Develco, Incorporated Precision connector for well instrumentation
US4807704A (en) * 1987-09-28 1989-02-28 Atlantic Richfield Company System and method for providing multiple wells from a single wellbore
US5458209A (en) * 1992-06-12 1995-10-17 Institut Francais Du Petrole Device, system and method for drilling and completing a lateral well
GB2304760A (en) * 1995-08-29 1997-03-26 Tiw Corp Multiple lateral hydrocarbon recovery system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2531709A (en) * 2014-10-20 2016-05-04 Nat Grid Gas Plc Apparatus and method

Also Published As

Publication number Publication date
AU3973797A (en) 1998-02-25
GB9805775D0 (en) 1998-05-13
WO1998005845A1 (en) 1998-02-12
NO981584L (en) 1998-04-07
NO981584D0 (en) 1998-04-07
GB2320273A8 (en) 1998-07-07
CA2232941A1 (en) 1998-02-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)