EP0434924B1 - Vorrichtung zum Bohren einer Neben- oder Ablenkbohrung eines insbesondere verrohrten Bohrlochs - Google Patents

Vorrichtung zum Bohren einer Neben- oder Ablenkbohrung eines insbesondere verrohrten Bohrlochs Download PDF

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Publication number
EP0434924B1
EP0434924B1 EP90120537A EP90120537A EP0434924B1 EP 0434924 B1 EP0434924 B1 EP 0434924B1 EP 90120537 A EP90120537 A EP 90120537A EP 90120537 A EP90120537 A EP 90120537A EP 0434924 B1 EP0434924 B1 EP 0434924B1
Authority
EP
European Patent Office
Prior art keywords
cut
tool
deflecting
well
starting
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.)
Expired - Lifetime
Application number
EP90120537A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0434924A1 (de
Inventor
Rainer Dr.-Ing. Jürgens
Dietmar Krehl
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 EP0434924A1 publication Critical patent/EP0434924A1/de
Application granted granted Critical
Publication of EP0434924B1 publication Critical patent/EP0434924B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock

Definitions

  • the invention relates to a device for drilling a secondary or deflection hole of a particularly cased borehole in underground rock or earth formations according to the preamble of claim 1.
  • a device for drilling a secondary or deflection hole of a particularly cased borehole in underground rock or earth formations according to the preamble of claim 1.
  • Such a device is known from US-A-4,765,404.
  • a packer When creating a conventional borehole deflection from z. B. the pipe wall of a cased borehole, a packer is first placed in the borehole, a deflecting wedge unit having a wedge surface is oriented in a certain direction and fixed to the packer via an anchor device.
  • the deflection wedge unit is conventionally fastened to a start cutting tool via a shear pin connection and introduced into the borehole with the drill string having the start cutting tool.
  • the conventionally used starting tool has a front cone oriented towards the deflection wedge unit, which cone forms a deflection guide which interacts with the deflection wedge piece at the upper end of the deflection wedge unit.
  • the start cutting tool is located after the initiation of the deflection process in an area of the borehole where its front or front cutting surfaces no longer come to rest on the front edge of the deflection wedge unit .
  • a guide element that cannot be cut such as a cone part, cannot hinder the progress of the tool.
  • the start cutting tool is located after the start cutting or milling process with its end face in the casing and is fully cutable without fear of destroying the deflection wedge unit. It is therefore not necessary to pull the strand and replace the starting cutting tool when a drilling progress corresponding to the length of the deflection guide has been reached. The associated time savings are considerable.
  • the design of the device according to the invention thus creates the prerequisite for arranging further milling tools after the leading cutting tool in order to cut out and expand the window with a drilling set, Carry out clearing work and make the deflection hole until you can continue working with a conventional drilling set.
  • the deflection wedge unit preferably comprises a deflection ramp engaging behind the starting cutting tool or the leading tool in the starting position and interacting with the deflection guide.
  • the deflection guide of the starting cutting tool is formed by a downstream, tapered tool holder area.
  • This can then be followed directly by other cutting tools, e.g. B. a milling tool with a larger cutting diameter than the cutting tool, with which the cut borehole window in the casing area is to be expanded.
  • Such a milling tool can be followed by a further broaching tool with a larger cutting diameter than the first downstream tool.
  • there is the option of adding further broaching tools if the broaching capacity should not be sufficient in the individual case.
  • the device according to the invention illustrated in FIGS. 1 to 3 comprises a packer 1 and a deflecting wedge unit 2 with a deflecting wedge surface 3.
  • the packer 1 and the deflecting wedge unit 2 are designed as a complete structural unit and therefore together in one borehole to be determined.
  • the deflection wedge unit 2 or the deflection wedge surface 3 should have a deflection or deflection angle of approximately 2 ° to 3 ° in the illustrated exemplary embodiment.
  • the deflecting wedge surface 3 consists of a tempered high-performance steel, so that a milling tool can be guided along this while simultaneously cutting out a casing tube window without having to fear destruction of the wedge surface.
  • the deflection wedge unit 2 is connected directly to the packer 1 and has a hydraulic passage 4 in order to place the packer 1 together with the deflection wedge unit 2 in the borehole. Otherwise, the deflecting wedge unit 2 also comprises a hydraulic line on the rear side, which is not visible in the illustration according to FIG.
  • the hose 5 is to be connected to the start cutting tool numbered 6 and thus creates a direct connection to the flushing supply, but at the same time also closes the flushing openings of the starting cutting tool 6 that are not visible in the drawing.
  • the deflection guide 9 of the leading cutting tool 6 is arranged in the form of a tapering tool holder area in the tool holder area under the downstream milling cutting tool 7, which is therefore also arranged downstream of the cutting tool 6 in the direction of drilling progress.
  • the deflecting wedge unit 2 in turn comprises the start cutting tool at its upper end facing the drill rods of the drill string, generally numbered 10 6 engaging deflection ramp 11. Not visible in detail is fixed in the region of the deflection ramp 11 of the starting cutting tool 6 via a shear pin connection for setting and positioning the device on the deflection wedge unit 2 and thus also on the packer 1.
  • the deflection ramp 11 in turn has a deflection wedge surface 13 against which the lower region of the deflection guide 9 rests at the beginning of a deflection or window cutting process. 2, the deflection guide 9 projects beyond the wedge surface 13 of the deflection ramp 11, so that the starting cutting tool 6 can be deflected away from the longitudinal axis of the borehole via the deflection guide 9 and the deflection wedge surface 13 of the deflection ramp 11 without first to come into contact with the deflecting wedge surface 3 of the deflecting wedge unit 2.
  • the milling cutting tool 7 immediately downstream of the starting cutting tool 6 in the direction of the drilling progress has an outer cutting diameter which is larger than the outer diameter of the starting cutting tool 6, but does not yet correspond to the diameter of the deflection bore to be created.
  • a cut window is to be expanded with the milling cutter tool 7.
  • Above the milling cutter 14 of the first subordinate cutting tool 7, the latter is so flexible via a constriction 15 that it can be deflected to a certain extent, so that material loads due to bending moments that occur during deflection can be kept low.
  • the tool 7 is followed by a further tool 7.2, which is also equipped with a milling cutter 16.
  • the tool 7.2 also includes a constriction 17 and is therefore also flexible in order to reduce the material loads that occur.
  • the milling cutter 16 of the tool 7.2 has an outer cutting diameter which corresponds essentially to the diameter of the finished deflection bore to be produced and thus forms a broaching tool. Additional cutting tools or milling cutters can be connected between the broaching tool 7.2 and the strand 10, if in the respective individual case the existing clearing capacity should not be sufficient.
  • the packer / deflecting wedge complete unit together with the tools 6, 7, 7.2 are to be mounted on the derrick, wherein the deflecting wedge unit 2 and milling cutters 6, 7, 7.2 are to be aligned .
  • Packer 1, deflection wedge unit 2 and milling tools 6, 7, 7.2 are then lowered into the borehole. Once the desired depth has been reached, the deflection wedge unit 2 is to be aligned using special tools and the packer 1 is set by means of overpressure via the hydraulic passages 4 of the deflection wedge unit 2.
  • the connecting bolts between the starting cutting tool 6 and the deflection unit 2 are then to be sheared off, after which the device is ready for the deflection or window cutting process to be carried out.
  • the cutting tool unit is put into operation, with the starting cutting tool 6 first cutting a window in the borehole wall when the deflection guide 9 moves downward along the deflection wedge surface 13 of the deflection ramp 11 before it comes into contact with the deflection wedge surface 3 of the deflection wedge unit 2 as part of a further downward movement ( 3A). This ensures that the deflecting wedge unit 2 is not damaged in its upper region via the starting cutting tool 6, but that the starting cutting tool 6 can be used for the window cutting process.
  • the downstream cutting tool 7 first mills away the deflection ramp 11 in some areas, but in doing so also expands the window in the borehole wall cut by the starting cutting tool 6 (FIG. 3B).
  • the cutting tool 6, which now rests on the deflecting wedge surface 3 of the deflecting wedge unit 2 takes over the guidance and can safely slide along the deflecting wedge surface 3, which is made of tempered high-performance steel, without causing damage.
  • the start cutting tool After further drilling progress, the start cutting tool has 6 the casing wall directly below its center, which is noticeable by a reduced torque with decreasing drilling progress.
  • the load is therefore expediently initially increased further in order to bring the starting cutting tool 6 out of this position.
  • the window area is to be expanded and cleared with the milling cutter 16 or the further downstream cutting tool 7.2, the starting cutting tool 6 drilling further into the formation until it is ensured that that the milling tool 7.2 has completely passed through the drilling wall area.
  • the drill string can be exchanged for a standard drill set.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP90120537A 1989-12-22 1990-10-26 Vorrichtung zum Bohren einer Neben- oder Ablenkbohrung eines insbesondere verrohrten Bohrlochs Expired - Lifetime EP0434924B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942438 1989-12-22
DE3942438A DE3942438A1 (de) 1989-12-22 1989-12-22 Vorrichtung zum bohren einer neben- oder ablenkbohrung eines insbesondere verrohrten bohrlochs

Publications (2)

Publication Number Publication Date
EP0434924A1 EP0434924A1 (de) 1991-07-03
EP0434924B1 true EP0434924B1 (de) 1993-09-22

Family

ID=6396110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120537A Expired - Lifetime EP0434924B1 (de) 1989-12-22 1990-10-26 Vorrichtung zum Bohren einer Neben- oder Ablenkbohrung eines insbesondere verrohrten Bohrlochs

Country Status (5)

Country Link
US (1) US5109924A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0434924B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2033048A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3942438A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO905506L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6302198B1 (en) 1999-10-22 2001-10-16 Canadian Downhole Drill System One trip milling system

Families Citing this family (154)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO912093L (no) * 1990-07-31 1992-02-03 Masx Energy Services Group Inc Hydraulisk tilsatt forankring for broennverktoey.
US5341873A (en) * 1992-09-16 1994-08-30 Weatherford U.S., Inc. Method and apparatus for deviated drilling
GB2299114A (en) * 1992-10-19 1996-09-25 Baker Hughes Inc Single trip milling tool
US5318132A (en) * 1992-10-28 1994-06-07 Marathon Oil Company Retrievable whipstock/packer assembly and method of use
US5335737A (en) * 1992-11-19 1994-08-09 Smith International, Inc. Retrievable whipstock
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
US5287921A (en) * 1993-01-11 1994-02-22 Blount Curtis G Method and apparatus for setting a whipstock
US6024168A (en) * 1996-01-24 2000-02-15 Weatherford/Lamb, Inc. Wellborne mills & methods
US5887668A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc. Wellbore milling-- drilling
US5826651A (en) * 1993-09-10 1998-10-27 Weatherford/Lamb, Inc. Wellbore single trip milling
US5787978A (en) * 1995-03-31 1998-08-04 Weatherford/Lamb, Inc. Multi-face whipstock with sacrificial face element
US5429187A (en) * 1994-03-18 1995-07-04 Weatherford U.S., Inc. Milling tool and operations
US5522461A (en) * 1995-03-31 1996-06-04 Weatherford U.S., Inc. Mill valve
US5727629A (en) * 1996-01-24 1998-03-17 Weatherford/Lamb, Inc. Wellbore milling guide and method
US5887655A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc Wellbore milling and drilling
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
US5836387A (en) * 1993-09-10 1998-11-17 Weatherford/Lamb, Inc. System for securing an item in a tubular channel in a wellbore
US5346017A (en) * 1993-09-27 1994-09-13 Atlantic Richfield Company Method and apparatus for setting a whipstock
US5361833A (en) 1993-11-18 1994-11-08 Triumph*Lor, Inc. Bottom set, non-retrievable whipstock assembly
NO311265B1 (no) * 1994-01-25 2001-11-05 Halliburton Co Ledekileanordning
US5425419A (en) * 1994-02-25 1995-06-20 Sieber; Bobby G. Whipstock apparatus and methods of use
US5431220A (en) * 1994-03-24 1995-07-11 Smith International, Inc. Whipstock starter mill assembly
US5445222A (en) * 1994-06-07 1995-08-29 Shell Oil Company Whipstock and staged sidetrack mill
US5443129A (en) * 1994-07-22 1995-08-22 Smith International, Inc. Apparatus and method for orienting and setting a hydraulically-actuatable tool in a borehole
US5535822A (en) * 1994-09-08 1996-07-16 Enterra Corporation Apparatus for retrieving whipstock
US7228901B2 (en) 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US7013997B2 (en) 1994-10-14 2006-03-21 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7036610B1 (en) 1994-10-14 2006-05-02 Weatherford / Lamb, Inc. Apparatus and method for completing oil and gas wells
US7040420B2 (en) 1994-10-14 2006-05-09 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7147068B2 (en) 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US5803176A (en) * 1996-01-24 1998-09-08 Weatherford/Lamb, Inc. Sidetracking operations
US6056056A (en) * 1995-03-31 2000-05-02 Durst; Douglas G. Whipstock mill
US5592991A (en) * 1995-05-31 1997-01-14 Baker Hughes Inc. Method and apparatus of installing a whipstock
GB2303158B (en) * 1995-07-07 1999-09-08 Red Baron Oil Tools Rental Single trip whipstock assembly
CA2225207C (en) * 1995-07-07 2003-11-25 The Red Baron (Oil Tools Rental) Limited Single trip whipstock assembly
GB2341629B (en) * 1995-09-14 2000-05-31 Baker Hughes Inc Window-cutting system for downhole tubulars
US5676206A (en) * 1995-09-14 1997-10-14 Baker Hughes Incorporated Window-cutting system for downhole tubulars
US6170576B1 (en) * 1995-09-22 2001-01-09 Weatherford/Lamb, Inc. Mills for wellbore operations
US5678634A (en) * 1995-10-17 1997-10-21 Baker Hughes Incorporated Method and apparatus for retrieving a whipstock
US5697438A (en) * 1995-12-01 1997-12-16 Baker Hughes Incorporated Torque control device for downhole milling
US5657820A (en) * 1995-12-14 1997-08-19 Smith International, Inc. Two trip window cutting system
US5740864A (en) * 1996-01-29 1998-04-21 Baker Hughes Incorporated One-trip packer setting and whipstock-orienting method and apparatus
US5947201A (en) * 1996-02-06 1999-09-07 Baker Hughes Incorporated One-trip window-milling method
US6155349A (en) * 1996-05-02 2000-12-05 Weatherford/Lamb, Inc. Flexible wellbore mill
US6648068B2 (en) * 1996-05-03 2003-11-18 Smith International, Inc. One-trip milling system
US5771972A (en) * 1996-05-03 1998-06-30 Smith International, Inc., One trip milling system
US5816324A (en) * 1996-05-03 1998-10-06 Smith International, Inc. Whipstock accelerator ramp
US5762143A (en) * 1996-05-29 1998-06-09 Baroid Technology, Inc. System and method for placement and retrieval of a subsurface diverting tool used in drilling and completing wells
US5862862A (en) * 1996-07-15 1999-01-26 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
US5833003A (en) * 1996-07-15 1998-11-10 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
CA2210563C (en) * 1996-07-15 2004-03-02 Halliburton Energy Services, Inc. Apparatus for completing a subterranean well and associated methods of using same
CA2210561C (en) * 1996-07-15 2004-04-06 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
AU719919B2 (en) * 1996-07-15 2000-05-18 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
AU3973797A (en) 1996-08-08 1998-02-25 Baker Hughes Incorporated Method for forming a casing window
US5743331A (en) * 1996-09-18 1998-04-28 Weatherford/Lamb, Inc. Wellbore milling system
RU2140520C1 (ru) * 1996-11-10 1999-10-27 Открытое Акционерное Общество Акционерная нефтяная компания "Башнефть" Устройство для прорезания окна в обсадной колонне
US5909770A (en) * 1996-11-18 1999-06-08 Baker Hughes Incorporated Retrievable whipstock
US5775428A (en) * 1996-11-20 1998-07-07 Baker Hughes Incorporated Whipstock-setting apparatus
US5806596A (en) * 1996-11-26 1998-09-15 Baker Hughes Incorporated One-trip whipstock setting and squeezing method
US6109347A (en) * 1997-07-03 2000-08-29 Baker Hughes Incorporated One-trip, thru-tubing, window-milling system
US6742596B2 (en) 2001-05-17 2004-06-01 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US6536520B1 (en) 2000-04-17 2003-03-25 Weatherford/Lamb, Inc. Top drive casing system
US7509722B2 (en) 1997-09-02 2009-03-31 Weatherford/Lamb, Inc. Positioning and spinning device
US6032740A (en) * 1998-01-23 2000-03-07 Weatherford/Lamb, Inc. Hook mill systems
GB9815809D0 (en) 1998-07-22 1998-09-16 Appleton Robert P Casing running tool
GB2340857A (en) 1998-08-24 2000-03-01 Weatherford Lamb An apparatus for facilitating the connection of tubulars and alignment with a top drive
GB2340858A (en) 1998-08-24 2000-03-01 Weatherford Lamb Methods and apparatus for facilitating the connection of tubulars using a top drive
GB2340859A (en) 1998-08-24 2000-03-01 Weatherford Lamb Method and apparatus for facilitating the connection of tubulars using a top drive
US6076606A (en) 1998-09-10 2000-06-20 Weatherford/Lamb, Inc. Through-tubing retrievable whipstock system
US7188687B2 (en) 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
DE69926802D1 (de) 1998-12-22 2005-09-22 Weatherford Lamb Verfahren und vorrichtung zum profilieren und verbinden von rohren
GB2345074A (en) 1998-12-24 2000-06-28 Weatherford Lamb Floating joint to facilitate the connection of tubulars using a top drive
GB2347441B (en) 1998-12-24 2003-03-05 Weatherford Lamb Apparatus and method for facilitating the connection of tubulars using a top drive
US6857487B2 (en) 2002-12-30 2005-02-22 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US6896075B2 (en) 2002-10-11 2005-05-24 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
RU2166058C2 (ru) * 1999-06-01 2001-04-27 Общество с ограниченной ответственностью "Биттехника" Клиновой отклонитель
AU776634B2 (en) 1999-12-22 2004-09-16 Weatherford Technology Holdings, Llc Drilling bit for drilling while running casing
US6598678B1 (en) 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
GB0010378D0 (en) 2000-04-28 2000-06-14 Bbl Downhole Tools Ltd Expandable apparatus for drift and reaming a borehole
EP1278932B1 (en) * 2000-05-05 2006-02-22 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
GB2365463B (en) 2000-08-01 2005-02-16 Renovus Ltd Drilling method
RU2183248C1 (ru) * 2000-12-25 2002-06-10 Ооо "Нефтьинвестсервис" Клин-отклонитель
US6684953B2 (en) 2001-01-22 2004-02-03 Baker Hughes Incorporated Wireless packer/anchor setting or activation
US6715567B2 (en) 2001-05-02 2004-04-06 Weatherford/Lamb, Inc. Apparatus and method for forming a pilot hole in a formation
GB0206227D0 (en) 2002-03-16 2002-05-01 Weatherford Lamb Bore-lining and drilling
US6994176B2 (en) 2002-07-29 2006-02-07 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
US6899186B2 (en) 2002-12-13 2005-05-31 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7303022B2 (en) 2002-10-11 2007-12-04 Weatherford/Lamb, Inc. Wired casing
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
US6953096B2 (en) 2002-12-31 2005-10-11 Weatherford/Lamb, Inc. Expandable bit with secondary release device
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
GB2414502B (en) 2003-02-27 2007-10-17 Weatherford Lamb Drill shoe
GB2415724B (en) 2003-03-05 2007-05-30 Weatherford Lamb Full bore lined wellbores
US7503397B2 (en) 2004-07-30 2009-03-17 Weatherford/Lamb, Inc. Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
CA2677247C (en) 2003-03-05 2012-09-25 Weatherford/Lamb, Inc. Casing running and drilling system
GB2416360B (en) 2003-03-05 2007-08-22 Weatherford Lamb Drilling with casing latch
US7370707B2 (en) 2003-04-04 2008-05-13 Weatherford/Lamb, Inc. Method and apparatus for handling wellbore tubulars
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7264067B2 (en) 2003-10-03 2007-09-04 Weatherford/Lamb, Inc. Method of drilling and completing multiple wellbores inside a single caisson
CA2492626C (en) * 2004-01-16 2010-04-20 Weatherford/Lamb, Inc. Flexible wellbore broach
US7284617B2 (en) 2004-05-20 2007-10-23 Weatherford/Lamb, Inc. Casing running head
RU2263196C1 (ru) * 2004-06-07 2005-10-27 Открытое акционерное общество "Акционерная нефтяная компания "Башнефть" Устройство для забуривания боковых стволов из обсаженной скважины
RU2281371C1 (ru) * 2005-02-01 2006-08-10 Общество с ограниченной ответственностью "Биттехника" Отклонитель
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US7575049B2 (en) 2006-05-15 2009-08-18 Baker Hughes Incorporated Exit window milling assembly with improved restraining force
GB2438200B (en) * 2006-05-16 2010-07-14 Bruce Mcgarian A whipstock
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
US7810568B2 (en) * 2006-10-19 2010-10-12 Baker Hughes Incorporated Method of making a window in a tubular using an expandable watermelon mill
US7571769B2 (en) * 2007-02-23 2009-08-11 Baker Hughes Incorporated Casing window milling assembly
US20090139721A1 (en) * 2007-11-30 2009-06-04 Baker Hughes Incorporated Bottom Hole Assembly for Casing Window Milling
RU2366793C1 (ru) * 2008-04-10 2009-09-10 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Устройство для забуривания боковых стволов из скважины
GB2467176B (en) 2009-01-27 2013-03-20 Bruce Mcgarian Apparatus and method for setting a tool in a borehole
US8069920B2 (en) * 2009-04-02 2011-12-06 Knight Information Systems, L.L.C. Lateral well locator and reentry apparatus and method
US7971645B2 (en) * 2009-04-03 2011-07-05 Baker Hughes Incorporated Four mill bottom hole assembly
RU2414580C1 (ru) * 2009-12-22 2011-03-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Отклонитель извлекаемый
CN102162343B (zh) * 2011-04-14 2014-02-12 中国海洋石油总公司 一种套管开窗铣鞋
RU2469172C1 (ru) * 2011-07-08 2012-12-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Клиновой отклонитель для забуривания боковых стволов из скважины
RU2469171C1 (ru) * 2011-07-15 2012-12-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Устройство для забуривания боковых стволов из скважины
US8763685B2 (en) 2011-07-25 2014-07-01 Baker Hughes Incorporated Whipstock assembly and method for low side exit
RU2472913C1 (ru) * 2011-08-19 2013-01-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Отклоняющее устройство для забуривания боковых стволов из скважины
RU2473768C1 (ru) * 2011-08-19 2013-01-27 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Устройство для забуривания боковых стволов из скважины
RU2477779C1 (ru) * 2011-10-13 2013-03-20 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Отклонитель клиновой
US9347268B2 (en) * 2011-12-30 2016-05-24 Smith International, Inc. System and method to facilitate the drilling of a deviated borehole
CN102747977A (zh) * 2012-07-20 2012-10-24 长江大学 一种水力套管内切割装置
WO2014109962A1 (en) 2013-01-08 2014-07-17 Knight Information Systems, Llc Multi-window lateral well locator/reentry apparatus and method
US9512677B2 (en) 2013-03-08 2016-12-06 Gtherm, Inc. System and method for creating lateral heat transfer appendages in a vertical well bore
US10415326B2 (en) * 2015-10-26 2019-09-17 Josh Chevalier Downhole drilling assembly with concentric alignment feature
WO2017146736A1 (en) 2016-02-26 2017-08-31 Halliburton Energy Services, Inc. Whipstock assembly with a support member
RU2661925C1 (ru) * 2017-07-27 2018-07-23 Федеральное государственное бюджетное учреждение науки Институт машиноведения им. А.А. Благонравова Российской академии наук (ИМАШ РАН) Устройство для установки обсадных фильтров в глубоких перфорационных каналах-волноводах
CN108397137A (zh) * 2018-03-01 2018-08-14 中国海洋石油集团有限公司 一种造斜工具及其制造方法
US11136843B1 (en) 2020-03-25 2021-10-05 Baker Hughes Oilfield Operations Llc Casing exit anchor with redundant activation system
US11414943B2 (en) 2020-03-25 2022-08-16 Baker Hughes Oilfield Operations Llc On-demand hydrostatic/hydraulic trigger system
US11162314B2 (en) 2020-03-25 2021-11-02 Baker Hughes Oilfield Operations Llc Casing exit anchor with redundant activation system
US11702888B2 (en) 2020-03-25 2023-07-18 Baker Hughes Oilfield Operations Llc Window mill and whipstock connector for a resource exploration and recovery system
US11421496B1 (en) 2020-03-25 2022-08-23 Baker Hughes Oilfield Operations Llc Mill to whipstock connection system
US11131159B1 (en) 2020-03-25 2021-09-28 Baker Hughes Oilfield Operations Llc Casing exit anchor with redundant setting system
US11162315B2 (en) 2020-03-25 2021-11-02 Baker Hughes Oilfield Operations Llc Window mill and whipstock connector for a resource exploration and recovery system
US11725482B2 (en) 2021-10-22 2023-08-15 Baker Hughes Oilfield Operations Llc Electrically actuated tubular cleaning system
US11732539B2 (en) 2021-10-22 2023-08-22 Baker Hughes Oilfield Operations Llc Electrically activated whipstock interface system
US11753892B2 (en) * 2021-10-22 2023-09-12 Baker Hughes Oilfield Operations Llc Electrically activated downhole anchor system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020471A (en) * 1934-12-03 1935-11-12 Leslie A Layne Whipstock packer
US2105722A (en) * 1935-11-20 1938-01-18 George J Barrett Well-boring apparatus
US2216963A (en) * 1939-10-09 1940-10-08 Joseph E Sinclair Means for cutting windows in well casings
US2509144A (en) * 1945-08-10 1950-05-23 Donovan B Grable Well plugging and whipstocking
US2667332A (en) * 1952-03-31 1954-01-26 Oilwell Drain Hole Drilling Co Flexible shaft well drilling equipment
US2882015A (en) * 1957-06-10 1959-04-14 J E Hill Directional window cutter for whipstocks
US3115935A (en) * 1960-03-18 1963-12-31 Jefferson M Hooton Well device
US3116799A (en) * 1960-08-01 1964-01-07 Drilling Control Corp Whipstock apparatus and method of using the same
US3397746A (en) * 1965-12-30 1968-08-20 Directional Service Co Of Peru Circulating mill guide
US3908759A (en) * 1974-05-22 1975-09-30 Standard Oil Co Sidetracking tool
US4031974A (en) * 1975-05-27 1977-06-28 Rapidex, Inc. Boring apparatus capable of boring straight holes
US4266621A (en) * 1977-06-22 1981-05-12 Christensen, Inc. Well casing window mill
US4304299A (en) * 1980-07-21 1981-12-08 Baker International Corporation Method for setting and orienting a whipstock in a well conduit
US4285399A (en) * 1980-07-21 1981-08-25 Baker International Corporation Apparatus for setting and orienting a whipstock in a well conduit
US4397355A (en) * 1981-05-29 1983-08-09 Masco Corporation Whipstock setting method and apparatus
US4765404A (en) * 1987-04-13 1988-08-23 Drilex Systems, Inc. Whipstock packer assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6302198B1 (en) 1999-10-22 2001-10-16 Canadian Downhole Drill System One trip milling system

Also Published As

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EP0434924A1 (de) 1991-07-03
CA2033048A1 (en) 1991-06-23
NO905506L (no) 1991-06-24
US5109924A (en) 1992-05-05
NO905506D0 (no) 1990-12-20
DE3942438A1 (de) 1991-07-11
DE3942438C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-01-30

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