EP0411260A2 - Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Kabelschnelllösbarkeit - Google Patents

Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Kabelschnelllösbarkeit Download PDF

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Publication number
EP0411260A2
EP0411260A2 EP90109715A EP90109715A EP0411260A2 EP 0411260 A2 EP0411260 A2 EP 0411260A2 EP 90109715 A EP90109715 A EP 90109715A EP 90109715 A EP90109715 A EP 90109715A EP 0411260 A2 EP0411260 A2 EP 0411260A2
Authority
EP
European Patent Office
Prior art keywords
cable
anchoring member
passage
member according
safety
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.)
Granted
Application number
EP90109715A
Other languages
English (en)
French (fr)
Other versions
EP0411260A3 (en
EP0411260B1 (de
Inventor
Christian Wittrisch
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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
Priority claimed from FR8706542A external-priority patent/FR2614932B1/fr
Priority claimed from FR8706543A external-priority patent/FR2614933B1/fr
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of EP0411260A2 publication Critical patent/EP0411260A2/de
Publication of EP0411260A3 publication Critical patent/EP0411260A3/fr
Application granted granted Critical
Publication of EP0411260B1 publication Critical patent/EP0411260B1/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/06—Releasing-joints, e.g. safety joints
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
    • E21B17/025—Side entry subs
    • 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
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • 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
    • E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
    • 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
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
    • E21B33/072—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools

Definitions

  • the present invention relates to a drill string equipment, such as a drill string, comprising a side window connection for the passage of a cable from the inside to the outside of the rods, with hydraulic sealing around the cable.
  • a side window fitting is, for example, used in the technique described in French patents 2,501,777 and its first two additions FR-A-2,522,059 and FR-A-2,564,893.
  • a logging probe (or an intervention tool) is initially fixed to the lower part of a drill string which is lowered into the well as it is formed.
  • a side window fitting passes the cable from the interior to the exterior of the rods.
  • the measurement recording (or intervention in the well) is carried out by moving the entire drill string from the surface.
  • the present invention provides a connection allowing the circulation of fluid in the lower part of the drill string, in particular for the movement of parts, tools, load bars, etc. connected by cable to surface installations.
  • This equipment for drill pipe sets comprises a connection with a side window, the connection having an upper end and a lower end, and being adapted to be incorporated into a drill string, said window allowing the passage of a cable.
  • the connector comprises means providing a seal around the cable with the window and making it possible to isolate an area inside the fitting, the inside area being located under said sealing means and opening out at the level of the lower end in a lower part of the drill string, and in that the zone has a lateral opening adapted to be connected to a pumping installation.
  • the sealing means may include two complementary parts adapted to be sealed to the fluid passages from the interior to the exterior and vice versa and adapted to be placed around a cable, the two parts defining an interior shape, these means sealing comprising internal means adapted to cooperate with the internal shape and the cable to make a seal between the cable and the two complementary parts, said sealing means further comprising external means adapted to cooperate with the two parts and the fitting for sealing.
  • the connector may include a cable anchoring member to said connector.
  • the anchoring member may include means adapted to release the cable under the action of a remote control.
  • the release means may be implemented under the action of a traction exerted by the cable.
  • the anchoring member may be expandable to allow the cable to be released.
  • the section of the cable located to the right of the two complementary parts may be straight and have an axis substantially parallel to the axis of said fitting.
  • the section of the cable located to the right of the two complementary parts may have an axis substantially coincident with the axis of said connector.
  • the anchoring member and the sealing means can be integrated with one another.
  • the diameter of the upper elements may be substantially equal to or less than the diameter of the lower elements.
  • the present invention also relates to equipment for a drill string comprising a side window connection, allowing the passage of a cable, this connection having an upper end and a lower end, and being adapted to be incorporated into a drill string comprising upper elements cooperating with said upper end and comprising lower elements cooperating with said lower end.
  • This equipment is characterized in particular in that the outside diameter of the upper elements of the drill string is less than the exterior diameter of the lower elements of the drill string.
  • This connection can be adapted so that the lower and upper elements have a substantially common generator.
  • the diameter of the upper elements may be substantially equal to or less than the diameter of the lower elements.
  • the present invention relates to a method of using said equipment and is in particular characterized in that a circulation of fluid is produced in the lower part of the drill string by connecting, by the lateral opening, the lower part of the drill string. rods at the pumping facility.
  • the present invention also provides a safety anchor for a cable.
  • This member is particularly suitable for being placed inside a fitting with side window.
  • This safety anchoring member comprises a body and a clamping element defining a passage for the cable, this passage having a variable section over at least part of the length of the passage, the anchoring member being retained at the interior of the support by releasable immobilization means, the body cooperating with the clamping element to reduce the cable cross-section, for clamping this cable.
  • This anchoring member also comprises at least one stop, adapted to modify the section by displacement of the clamping element relative to the body by resting on the support and on a surface of the element, the surface having a shape adapted to increase the section of the passage and to anchor the cable when the immobilization means release the anchoring member and when a sufficient translation of the body is produced relative to the support.
  • the body can be adapted to move the clamping element during the translation of the body.
  • the means for immobilizing the anchoring member and the cable can be released by remote control.
  • the release of the immobilization means can be obtained under the action of a traction exerted by the cable from the surface.
  • the immobilization means may include a shearable pin beyond a certain stress threshold.
  • the surface of the anchoring element may comprise at least one part inclined at a certain angle relative to the oriented axis of translation of the anchoring element relative to the support, the inclined part being oriented in the direction s deviating from the passage and the angle of inclination, between the oriented axes of the translation and of the inclined part, will be an acute angle.
  • the surface of the anchoring element can be crenellated and include at least one notch and the stop can be adapted to penetrate into the notch when the translation is carried out.
  • the anchoring member can be adapted to a lateral introduction of the cable into the passage.
  • the anchoring member may include means providing a seal around the cable with the interior of the support.
  • the reference 1 represents the connection with side window screwed by its upper 1a and lower 1b ends respectively to an upper element 2 and a lower element 3 of the drill string.
  • This connector has a side window 5 allowing the passage of an electric cable 4 from the outside to the inside of the rods, by relying on two guide rollers 6a and 6b.
  • This cable is, for example, of a type used for logs or interventions carried out according to the technique described in patent FR-A-2,501,777 and its aforementioned additions.
  • the upper end 1a may include a plug allowing the upper element 2 to be closed.
  • the member 8 seals around the cable 4 between a zone 9 inside the fitting 1 and the outside of the fitting.
  • the inner zone 9 opens into the lower part of the drill string, through the lower element 3.
  • This inner zone 9 is in communication with a lateral opening 10 located in the connector and which can be connected to an installation of pumping adapted to produce in particular a circulation of fluid for the displacement of tools and of measuring or intervention instruments connected or not to the cable 4.
  • One of these instruments can be a load bar comprising an electrical connector adapted to cooperate with another complementary electrical connector.
  • the member 8 also ensures the anchoring of the cable 4 to said connector 1.
  • the means of the connector 1 specifically intended for sealing and carried by the member 8 comprise two complementary parts (8a, 8b) assembled by screws 7 and adapted to be placed around the cable (4) and to be watertight at the passage of fluid from the inside to the outside and vice versa.
  • the interior of these two parts is bored so as to be able to place deformable rings 16 and a compression ring 17 therein and to keep these rings locked in a direction. All these rings, or some of them only, are split so that they can be put in place once the cable passes through the fitting 1.
  • a nut 18, comprising a lateral opening for its introduction around the cable 4 and on the member 8, makes it possible to compress the deformable washers 16 so as to produce a seal.
  • the assembly suitable for producing the internal sealing means and comprising the two complementary parts 8a, 8b, the deformable washers 16, the compression washer 17 with half-moon and, the nut 18 corresponds to the cable gland generally retained for this usage.
  • the external sealing means comprise the two complementary parts or body 8a, 8b cooperating with one or more external seals 14, such as an O-ring, and the internal wall of fitting 1.
  • the anchoring member specifically intended for immobilizing the cable 4 relative to the connector 1 and carried by the member 8 comprises the two complementary parts or body 8a, 8b, and a clamping element 8c actuated by clamping screws 12.
  • One 8b of the complementary parts or body 8a, 8b has a flared recess opening onto the cable 4 and in which the clamping element 8c is positioned which, under the action of the stud screws 12, prevents the cable 4 from move.
  • These screws 12 include sealing means preventing any passage of fluid between their body and the holes in which they are housed.
  • the sealing and anchoring member 8 further comprises a lug 19 cooperating with a groove 20 located in the connector 1, both adapted to allow relative movement when the cable is detached.
  • the member 8 is immobilized relative to the connector 1 by a shearable pin 11 which allows, by its shearing, to release the member 8 in translation when a traction is exerted on the cable 4.
  • the equipment is implemented as follows, while the side entry fitting is accessible, for example when it is close to the surface.
  • the clamping screws act as adjustable stops, but fixed stops could also be used.
  • the cable can be clamped by wedging the anchoring member, or more precisely the clamping member, inside the connector, by axial pressure on said member. , or by self-pinching the cable once the jamming has started.
  • the cable runs freely inside the member 8 and the connector 1, until the cable can be completely removed and thus be able to perform operations, such as unlocking the column, which the presence of the cable would prevent.
  • the clearance surfaces 13 shown in FIGS. 1A and 1B have a slope whose inclination is adapted to increase the clearance between the anchoring element 8c and the pins of the screws 12 when the member 8 follows the movement of the cable printed by a pull on it.
  • the angle alpha between the oriented axes of the translation OT and of the inclined part is an acute angle.
  • the apex of this acute angle is oriented towards the bottom of the well, that is to say in the opposite direction to that in which the traction intended to release the cable will be exerted.
  • FIG. 3 represents a second embodiment of the clamping element, in which the release surfaces comprise a part without inclination 13a on which the stud of one of the screws 12 rests, followed by a part 13b , such that the clearance between the stud and the anchoring element 8c increases suddenly.
  • the surface therefore assumes a crenellated shape 13a, 13b, where the vertices 13a correspond to the clamping positions of the clamping element 8c, and where the notches 13b correspond to the cable release positions.
  • the inclined release surfaces allow both the release of the cable after a slight displacement of the member 8 and greater precision in the tensile threshold to be exerted to shear the pin 11.
  • the axes of the screws 12 may be substantially perpendicular to the relief surfaces 13.
  • the surface area of the studs in contact with the inclined parts of the relief surface 13, or in contact with the parts 13a according to the second embodiment, will be as large as possible.
  • This reduction in diameter allows a cable to run along the upper elements of the drill string to the upper end of the well, especially when the lower and upper elements of the drill string are offset.
  • An advantageous offset can be obtained when the lower and upper elements have a substantially common generator.
  • Hoods can be used to apply the cable to these upper parts of the drill string.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Earth Drilling (AREA)
  • Food-Manufacturing Devices (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Ropes Or Cables (AREA)
EP90109715A 1987-05-07 1988-05-05 Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Kabelschnelllösbarkeit Expired - Lifetime EP0411260B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR8706542A FR2614932B1 (fr) 1987-05-07 1987-05-07 Equipement pour train de tiges de forage comportant un raccord a fenetre laterale
FR8706543 1987-05-07
FR8706542 1987-05-07
FR8706543A FR2614933B1 (fr) 1987-05-07 1987-05-07 Organe d'ancrage de securite d'un cable sur un support
EP88401093A EP0294252B1 (de) 1987-05-07 1988-05-05 Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Verfahren für deren Anwendung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP88401093.5 Division 1988-05-05

Publications (3)

Publication Number Publication Date
EP0411260A2 true EP0411260A2 (de) 1991-02-06
EP0411260A3 EP0411260A3 (en) 1993-01-13
EP0411260B1 EP0411260B1 (de) 1995-11-22

Family

ID=26225969

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90109715A Expired - Lifetime EP0411260B1 (de) 1987-05-07 1988-05-05 Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Kabelschnelllösbarkeit
EP88401093A Expired - Lifetime EP0294252B1 (de) 1987-05-07 1988-05-05 Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Verfahren für deren Anwendung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88401093A Expired - Lifetime EP0294252B1 (de) 1987-05-07 1988-05-05 Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Verfahren für deren Anwendung

Country Status (5)

Country Link
US (1) US4913227A (de)
EP (2) EP0411260B1 (de)
CA (1) CA1330935C (de)
DE (2) DE3870313D1 (de)
NO (1) NO302429B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033120A1 (en) * 1994-05-28 1995-12-07 Kenneth Mackintosh A well entry tool
WO2005059296A3 (en) * 2003-12-17 2005-09-22 Baker Hughes Inc Side entry sub hydraulic wireline cutter

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913227A (en) 1987-05-07 1990-04-03 Institut Francais Du Petrole Equipment for a drill pipe string including a side entry sub, a safety member for anchoring a cable on a support, and a method of using the equipment
FR2652857B1 (fr) * 1989-10-11 1993-06-04 Inst Francais Du Petrole Dispositif de blocage pour un cable traversant la paroi d'un tube tel qu'un raccord a fenetre laterale.
US6202764B1 (en) * 1998-09-01 2001-03-20 Muriel Wayne Ables Straight line, pump through entry sub
US6315044B1 (en) 1998-11-12 2001-11-13 Donald W. Tinker Pre-milled window for drill casing
WO2000060212A1 (en) 1999-04-01 2000-10-12 Baker Hughes Incorporated Pipe conveyed logging system and method
US6269879B1 (en) * 2000-03-20 2001-08-07 Harper Boyd Sleeve liner for wireline entry sub assembly
US7096961B2 (en) 2003-04-29 2006-08-29 Schlumberger Technology Corporation Method and apparatus for performing diagnostics in a wellbore operation
US7721798B2 (en) * 2005-07-19 2010-05-25 Tesco Corporation Wireline entry sub
JP5517446B2 (ja) * 2008-12-19 2014-06-11 東洋製罐株式会社 パウチの製造方法及びパウチ
US9404343B2 (en) * 2010-10-05 2016-08-02 Packers Plus Energy Services Inc. Wireline conveyed apparatus for wellbore fluid treatment
CN106089137A (zh) * 2016-08-16 2016-11-09 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 一种连续油管用节流牵引器及其应用
CN111980678B (zh) * 2020-09-15 2024-09-10 中交第二公路勘察设计研究院有限公司 一种剪切式水平定向钻进地质勘察孔内测井仪器保护装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501777A1 (fr) 1981-03-13 1982-09-17 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales
FR2502236A1 (en) 1981-03-17 1982-09-24 Inst Francais Du Petrole Tubular connection for drilling string - for introducing flexible line inside the borehole with reduced wear on the line
FR2522059A2 (fr) 1981-03-13 1983-08-26 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales
GB2135719A (en) 1983-02-22 1984-09-05 Exxon Production Research Co Drill string sub
FR2564893A2 (fr) 1984-05-25 1985-11-29 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales.
EP0294252A1 (de) 1987-05-07 1988-12-07 Institut Français du Pétrole Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Verfahren für deren Anwendung

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US3401749A (en) * 1966-09-06 1968-09-17 Dresser Ind Method and apparatus for moving wire-line tools through deviated well bores
US4062551A (en) * 1975-12-05 1977-12-13 Jim Base Cable seal unit for earth-boring drill strings
US4200297A (en) * 1976-09-13 1980-04-29 Sperry-Sun, Inc. Side entry clamp and packoff
US4388969A (en) * 1980-12-01 1983-06-21 Nl Industries, Inc. Borehole pipe side entry method and apparatus
US4524834A (en) * 1982-06-22 1985-06-25 Smith International, Inc. Cablehead side entry sub
US4603578A (en) * 1984-10-10 1986-08-05 Gearhart Industries, Inc. Side entry sub with tension release wireline cable clamp
US4607693A (en) * 1985-02-11 1986-08-26 Schlumberger Technology Corporation Side-entry sub
FR2581699B1 (fr) * 1985-05-13 1988-05-20 Inst Francais Du Petrole Equipement pour train de tiges, tel qu'un train de tiges de forage, comprenant un raccord a fenetre laterale pour le passage d'un cable
US4681162A (en) * 1986-02-19 1987-07-21 Boyd's Bit Service, Inc. Borehole drill pipe continuous side entry or exit apparatus and method
US4678038A (en) * 1986-03-07 1987-07-07 Rankin E Edward Side entry sub well logging apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501777A1 (fr) 1981-03-13 1982-09-17 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales
FR2522059A2 (fr) 1981-03-13 1983-08-26 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales
FR2502236A1 (en) 1981-03-17 1982-09-24 Inst Francais Du Petrole Tubular connection for drilling string - for introducing flexible line inside the borehole with reduced wear on the line
GB2135719A (en) 1983-02-22 1984-09-05 Exxon Production Research Co Drill string sub
FR2564893A2 (fr) 1984-05-25 1985-11-29 Inst Francais Du Petrole Methode et dispositif pour effectuer, a l'aide d'outils specialises, des operations telles que des mesures, dans des portions de puits fortement inclinees sur la verticale, ou horizontales.
EP0294252A1 (de) 1987-05-07 1988-12-07 Institut Français du Pétrole Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Verfahren für deren Anwendung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033120A1 (en) * 1994-05-28 1995-12-07 Kenneth Mackintosh A well entry tool
US5803191A (en) * 1994-05-28 1998-09-08 Mackintosh; Kenneth Well entry tool
WO2005059296A3 (en) * 2003-12-17 2005-09-22 Baker Hughes Inc Side entry sub hydraulic wireline cutter

Also Published As

Publication number Publication date
NO302429B1 (no) 1998-03-02
DE3854719D1 (de) 1996-01-04
DE3854719T2 (de) 1996-07-25
US4913227A (en) 1990-04-03
EP0411260A3 (en) 1993-01-13
CA1330935C (fr) 1994-07-26
DE3870313D1 (de) 1992-05-27
NO881959L (no) 1988-11-08
EP0294252A1 (de) 1988-12-07
NO881959D0 (no) 1988-05-05
EP0294252B1 (de) 1992-04-22
EP0411260B1 (de) 1995-11-22

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