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WO1993018277A1 - Tracteur assurant la progression d'un equipement de traitement et de mesure a l'interieur d'un trou de forage - Google Patents

Tracteur assurant la progression d'un equipement de traitement et de mesure a l'interieur d'un trou de forage Download PDF

Info

Publication number
WO1993018277A1
WO1993018277A1 PCT/DK1993/000092 DK9300092W WO9318277A1 WO 1993018277 A1 WO1993018277 A1 WO 1993018277A1 DK 9300092 W DK9300092 W DK 9300092W WO 9318277 A1 WO9318277 A1 WO 9318277A1
Authority
WO
WIPO (PCT)
Prior art keywords
tractor
motor
borehole
battery
converter
Prior art date
Application number
PCT/DK1993/000092
Other languages
English (en)
Inventor
Jørgen HALLUNDBAEK
Original Assignee
Htc A/S
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 Htc A/S filed Critical Htc A/S
Priority to AU38883/93A priority Critical patent/AU3888393A/en
Publication of WO1993018277A1 publication Critical patent/WO1993018277A1/fr

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
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure 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
    • 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
    • E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/30—Deferred-action cells
    • H01M6/36—Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells

Definitions

  • the invention concerns a hydraulically driven tractor for advancing processing and/or measuring equipment in a pre- drilled hole in a subterranean formation, comprising a section filled with hydraulic oil and containing a hydraulic pump for the hydraulic system of the tractor, an electric motor for operating the pump and a battery for energizing the motor.
  • a known method of solving this problem comprises the use of a thin-walled steel pipe wound on a drum and pressur- ized to obtain a sufficiently great stiffness.
  • a natural solution might comprise using a self-propelling tractor of the type which is described in the Applicant's international patent application PCT/DK89/00213, for pull- ing or pushing the measuring equipment through the borehole.
  • This tractor is intended to exert the necessary pressure on a drill bit while pulling the drill string after it in the drilled hole, and it thus has a consider- able traction force.
  • the wheels of the tractor are pressed against the wall of the borehole and are caused to rotate by means of a hydraulic system having a hydraulic pump, which is normally driven by a mud motor when the tractor is used in connection with a drilling operation. If the tractor is to be used solely for advancing measuring tools in the borehole, no drilling mud is available for driving a mud motor, and instead this may expediently be replaced by an electric motor.
  • the power supply for such an electric motor may e.g. be obtained from the surface via a cable which, however, is usually not capable of transferring a power greater than about 500 watts, partly because the cable is wound on a drum, partly because it offers great resistence owing to its length.
  • a considerable voltage drop must thus be expected along the cable, so that an applied voltage of 600 volts at the surface may be reduced to 150 volts down in the borehole where the tools are present.
  • an applied voltage of 600 volts at the surface may be reduced to 150 volts down in the borehole where the tools are present.
  • a solution to these problems might be that the tractor brought its own power supply in the form of a battery which, however, cannot, or only with great difficulty, operate directly under the extremely servere working con ⁇ ditions in the borehole, and a battery supplying DC is not useful as a power source for an electric motor which is to be capable of working in the same difficult environment.
  • the new and unique features of the invention remedying these drawbacks are that the motor is an open AC motor, that a converter is inserted between the motor and the battery for converting the DC of the battery to AC, and that the battery and the converter are incorporated in an air-filled pressure container.
  • a control relay may advantageously be incor ⁇ porated in the pressure container to start and stop the motor via signals through the cable from the surface, as desire .
  • fig. 1 schematically shows a fraction of a vertical section through a subterranean formation with a borehole in which a self-propelling tractor pulls a number of measuring tools
  • fig. 2 schematically shows the tractor of fig. 1 on an enlarged scale
  • fig. 3 shows a fraction of a section for the tractor of figs. 1 and 2 with its power assembly.
  • Fig. 1 shows a subterranean formation 1 with a borehole 2, which initially extends vertically down into the formation and then through a bend horizontally.
  • a tractor 4 drives in the borehole, pulling a trail 5 of three hooked-up measuring tools.
  • a tower 6 with a drum 7 is mounted on the surface 3 and on the borehole 2, a wireline 8, whose lowermost end is connected with the measuring tool trail 5, being wound on said drum.
  • the wireline 8 is in turn connected via an electric connection 9 with a measuring station, which, in this case, is in the form of a vehicle containing the necessary means for recording and inter ⁇ preting the measurement signals received from the borehole.
  • Fig. 2 is an enlarged view of the actual tractor 4 with a portion of the front part of the trail 5 being indicated in dashed lines.
  • the tractor 4 substantially consists of a front traction section 11 and a rear power section 12.
  • the traction section 11 may e.g. be arranged like the appara- tus described in the Applicant's previously mentioned international patent application PCT/DK89/00213, it being observed that the invention can be used in connection with any appartus of this type.
  • the traction section 11 is self-propelling and has wheels 13 capable of running on the wall 14 of the borehole. The wheels are driven by a hydraulic system which likewise keeps the wheels pressed against the wall of the borehole, so that they can trans ⁇ fer the necessary traction force to it.
  • Fig. 3 shows an enlarged section through the power section 12 of the tractor. Outwardly this has a wall 15 and is filled with hydraulic oil under pressure, which may e.g. be 1300 bars in deep boreholes.
  • a compensator (not shown), which is of a known type and will therefore not be mentioned more fully here, is provided in the power sec ⁇ tion to equalize the pressure with respect to the sur ⁇ roundings.
  • the power section comprises a hydraulic pump 16 inserted with hydraulic pipes 17 into the hydraulic cir ⁇ cuit of the traction section 11 to the wheels 13.
  • the hydraulic pump 16 is driven via a shaft 18 by an electric motor 19.
  • a battery 20 serves to energize the motor 19.
  • the power section is connected with the measuring tools and measuring station on the surface via a wire 21 having the necessary electric cables 22, which are run into a cable distributor 23 and from this via other electric cables 24 to optional measuring tools arranged in front of the tractor.
  • the battery is connected by electric cables 25, 26 and 27, respectively, to the electric motor 19 via an electric converter 28 and a control relay 29, which is in turn connected with the measuring station 10 on the surface via a control line 30, the cable distributor 23 and the electric cables 22.
  • the power section 12 is filled with hydrau ⁇ lic oil under a very high pressure, which may be up to 1300 bars, and it will therefore not be expedient to use a fully encapsulated electric motor whose shaft lead-in will have difficulty in maintaining a tight seal against the huge pressure difference.
  • the electric motor 19 is there ⁇ fore of an open design and interiorly completely filled with hydraulic oil.
  • a DC motor is not suitable for working with the commutator thus immersed in oil, and instead an AC motor is used without a commutator.
  • the DC current from the battery 20 is therefore converted to AC current in the converter 28 before being fed to the electric motor 19.
  • the battery 20, the converter 28 and the control relay 29 are moreover encapsulated in an air-filled pressure con ⁇ tainer 31, since these electric components cannot stand being exposed in the hydraulic oil because of i.a. the high pressure in it.
  • a tractor for an 8 1/2" borehole may typically have the following specifications:
  • the above-mentioned tractor will be capable of pulling 20 to 30 meters of measuring tools as well as a minimum of
  • the tractor drives for- wardly in the borehole at a constant speed, irrespective of the load, so that the wireline correspondingly runs in the hole at a constant rate over the distance in which the tractor is active.
  • Normal down rate of the standard measuring tools is about 3000 m/h, and a normal retraction rate with the wireline is about 600 m/h.
  • the speed of the tractor is expediently fixed at 1000 m/h to limit the power requirement.

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)
  • Geophysics (AREA)
  • Earth Drilling (AREA)

Abstract

Tracteur (4) à traction hydraulique, assurant la progression d'un équipement et/ou de traitement (5) dans une formation souterraine. Le tracteur (4) comporte un compartiment (12) occupé par un fluide hydraulique et abritant une pompe hydraulique (16) pour un système hydraulique (17), un moteur électrique (19) animant la pompe (16) et une batterie (20) pour alimenter le moteur (19). Ledit moteur (19) est un moteur à courant alternatif à circuit ouvert, et un convertisseur (28) assure la conversion du courant continue de la batterie en courant alternatif, entre le moteur et la batterie (20). La batterie (20) et le convertisseur (28) sont incorporés dans un conteneur étanche en surpression (31). Le tracteur est conçu pour travailler aux températures et aux pressions extrêmement élevées qui se rencontrent à l'intérieur des trous de forage. On réalise une économie considérable en moyens et en temps en utilisant un tel tracteur en lieu et place d'un train de sondes pour assurer la progression des instruments de mesure à l'intérieur du trou de forage.
PCT/DK1993/000092 1992-03-13 1993-03-12 Tracteur assurant la progression d'un equipement de traitement et de mesure a l'interieur d'un trou de forage WO1993018277A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38883/93A AU3888393A (en) 1992-03-13 1993-03-12 A tractor for advancing processing and measuring equipment in a borehole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK0341/92 1992-03-13
DK92341A DK34192D0 (da) 1992-03-13 1992-03-13 Traktor til fremfoering af bearbejdnings- og maaleudstyr i et borehul

Publications (1)

Publication Number Publication Date
WO1993018277A1 true WO1993018277A1 (fr) 1993-09-16

Family

ID=8092433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1993/000092 WO1993018277A1 (fr) 1992-03-13 1993-03-12 Tracteur assurant la progression d'un equipement de traitement et de mesure a l'interieur d'un trou de forage

Country Status (2)

Country Link
DK (1) DK34192D0 (fr)
WO (1) WO1993018277A1 (fr)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330162A (en) * 1997-10-13 1999-04-14 Inst Francais Du Petrole Apparatus for displacing logging equipment within an inclined borehole
FR2769664A1 (fr) 1997-10-13 1999-04-16 Inst Francais Du Petrole Methode et systeme de mesure comportant une extension semi-rigide
WO1999066172A1 (fr) 1998-06-12 1999-12-23 Shell Internationale Research Maatschappij B.V. Procede et systeme de mesure dans un conduit de transport de fluide
WO2000046481A3 (fr) * 1999-02-05 2001-02-15 Petroleum Eng Services Tracteur de fond
WO1999066171A3 (fr) * 1998-06-12 2001-11-08 Shell Int Research Procede et systeme pour deplacer un equipement a l'interieur et au travers d'un conduit
WO2003034522A1 (fr) * 2001-10-12 2003-04-24 Expo North Sea Limited Fonctionnement d'elements a base d'electrolyte
US6758279B2 (en) 1995-08-22 2004-07-06 Western Well Tool, Inc. Puller-thruster downhole tool
GB2401130A (en) * 2003-04-30 2004-11-03 Weatherford Lamb A traction apparatus
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US6953086B2 (en) 2000-11-24 2005-10-11 Weatherford/Lamb, Inc. Bi-directional traction apparatus
US7036610B1 (en) 1994-10-14 2006-05-02 Weatherford / Lamb, Inc. Apparatus and method for completing oil and gas wells
US7174974B2 (en) 1998-12-18 2007-02-13 Western Well Tool, Inc. Electrically sequenced tractor
WO2002091535A3 (fr) * 2001-05-09 2007-10-25 Tracto Technik Dispositif et procede pour tirer des cables dans des tubes
GB2418946B (en) * 2003-07-16 2007-11-07 Schlumberger Holdings Open hole tractor with tracks
US7348892B2 (en) * 2004-01-20 2008-03-25 Halliburton Energy Services, Inc. Pipe mounted telemetry receiver
US7392859B2 (en) 2004-03-17 2008-07-01 Western Well Tool, Inc. Roller link toggle gripper and downhole tractor
US7624808B2 (en) 2006-03-13 2009-12-01 Western Well Tool, Inc. Expandable ramp gripper
EP2282002A3 (fr) * 2000-02-15 2011-05-04 Exxonmobil Upstream Research Company Corp-URC-SW-3 Verfahren und vorrichtung zum stimulieren und manipulieren von formationsabschnitten
EP2458137A1 (fr) * 2010-11-24 2012-05-30 Welltec A/S Unité de fonds de puits sans fil
EP2458138A1 (fr) * 2010-11-24 2012-05-30 Welltec A/S Système de fonds de puits doté d'une unité sans fil
EP2505769A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Panneau de service
EP2505767A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ressort à sécurité intégrée
EP2505771A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ensemble formant bras
EP2505772A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ensemble hydraulique
EP2505770A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Élément de couple
EP2505768A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ressort à sécurité intégrée
DK177312B1 (en) * 2009-11-24 2012-11-19 Maersk Olie & Gas Apparatus and system and method for measuring data in a well propagating below the surface
US8944161B2 (en) 2000-05-18 2015-02-03 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US20150167416A1 (en) * 2012-06-14 2015-06-18 Halliburton Energy Services, Inc. Well Tractor
US9447648B2 (en) 2011-10-28 2016-09-20 Wwt North America Holdings, Inc High expansion or dual link gripper
US9488020B2 (en) 2014-01-27 2016-11-08 Wwt North America Holdings, Inc. Eccentric linkage gripper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433986A (en) * 1966-06-13 1969-03-18 Reda Pump Co Oil filled elongated submergible electric motor
DK137935B (da) * 1972-07-18 1978-06-05 Mobil Oil Corp Fremgangsmåde ved og anlæg til styring fra jordoverfladen af måleoperationer i et borehul.
US4499955A (en) * 1983-08-12 1985-02-19 Chevron Research Company Battery powered means and method for facilitating measurements while coring
US4763259A (en) * 1985-03-29 1988-08-09 Panex Corporation Memory processing systems for well tools
US4833354A (en) * 1988-06-13 1989-05-23 Trw Inc. Oil-filled submergible electric pump motor with unvarnished stator structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433986A (en) * 1966-06-13 1969-03-18 Reda Pump Co Oil filled elongated submergible electric motor
DK137935B (da) * 1972-07-18 1978-06-05 Mobil Oil Corp Fremgangsmåde ved og anlæg til styring fra jordoverfladen af måleoperationer i et borehul.
US4499955A (en) * 1983-08-12 1985-02-19 Chevron Research Company Battery powered means and method for facilitating measurements while coring
US4763259A (en) * 1985-03-29 1988-08-09 Panex Corporation Memory processing systems for well tools
US4833354A (en) * 1988-06-13 1989-05-23 Trw Inc. Oil-filled submergible electric pump motor with unvarnished stator structure

Cited By (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7165634B2 (en) 1994-10-14 2007-01-23 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7048050B2 (en) 1994-10-14 2006-05-23 Weatherford/Lamb, Inc. Method 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
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US6758279B2 (en) 1995-08-22 2004-07-06 Western Well Tool, Inc. Puller-thruster downhole tool
US7273109B2 (en) 1995-08-22 2007-09-25 Western Well Tool Puller-thruster downhole tool
US7156181B2 (en) * 1995-08-22 2007-01-02 Western Well Tool, Inc. Puller-thruster downhole tool
US7059417B2 (en) 1995-08-22 2006-06-13 Western Well Tool, Inc. Puller-thruster downhole tool
GB2330162B (en) * 1997-10-13 2002-03-13 Inst Francais Du Petrole Logging method and system in a horizontal passage
US6179058B1 (en) 1997-10-13 2001-01-30 Institut Francis Du Petrole Measuring method and system comprising a semi-rigid extension
GB2330162A (en) * 1997-10-13 1999-04-14 Inst Francais Du Petrole Apparatus for displacing logging equipment within an inclined borehole
FR2769665A1 (fr) 1997-10-13 1999-04-16 Inst Francais Du Petrole Methode et systeme de mesure dans un conduit horizontal
FR2769664A1 (fr) 1997-10-13 1999-04-16 Inst Francais Du Petrole Methode et systeme de mesure comportant une extension semi-rigide
US6173787B1 (en) 1997-10-13 2001-01-16 Institut Francais Du Petrole Method and system intended for measurements in a horizontal pipe
US6241028B1 (en) 1998-06-12 2001-06-05 Shell Oil Company Method and system for measuring data in a fluid transportation conduit
EA003317B1 (ru) * 1998-06-12 2003-04-24 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Способ и устройство для введения оборудования в трубопровод и перемещения его по трубопроводу
US6454011B1 (en) 1998-06-12 2002-09-24 Shell Oil Company Method and system for moving equipment into and through a conduit
WO1999066171A3 (fr) * 1998-06-12 2001-11-08 Shell Int Research Procede et systeme pour deplacer un equipement a l'interieur et au travers d'un conduit
US6675888B2 (en) 1998-06-12 2004-01-13 Shell Oil Company Method and system for moving equipment into and through an underground well
WO1999066172A1 (fr) 1998-06-12 1999-12-23 Shell Internationale Research Maatschappij B.V. Procede et systeme de mesure dans un conduit de transport de fluide
US7185716B2 (en) 1998-12-18 2007-03-06 Western Well Tool, Inc. Electrically sequenced tractor
US7174974B2 (en) 1998-12-18 2007-02-13 Western Well Tool, Inc. Electrically sequenced tractor
WO2000046481A3 (fr) * 1999-02-05 2001-02-15 Petroleum Eng Services Tracteur de fond
US6273189B1 (en) 1999-02-05 2001-08-14 Halliburton Energy Services, Inc. Downhole tractor
EP2282002A3 (fr) * 2000-02-15 2011-05-04 Exxonmobil Upstream Research Company Corp-URC-SW-3 Verfahren und vorrichtung zum stimulieren und manipulieren von formationsabschnitten
US9228403B1 (en) 2000-05-18 2016-01-05 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US9988868B2 (en) 2000-05-18 2018-06-05 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US8944161B2 (en) 2000-05-18 2015-02-03 Wwt North America Holdings, Inc. Gripper assembly for downhole tools
US6953086B2 (en) 2000-11-24 2005-10-11 Weatherford/Lamb, Inc. Bi-directional traction apparatus
WO2002091535A3 (fr) * 2001-05-09 2007-10-25 Tracto Technik Dispositif et procede pour tirer des cables dans des tubes
US7427452B2 (en) 2001-10-12 2008-09-23 Expro North Seal Limited Operating electrolyte based components
WO2003034522A1 (fr) * 2001-10-12 2003-04-24 Expo North Sea Limited Fonctionnement d'elements a base d'electrolyte
GB2401130B (en) * 2003-04-30 2006-11-01 Weatherford Lamb A traction apparatus
US7051587B2 (en) 2003-04-30 2006-05-30 Weatherford/Lamb, Inc. Traction apparatus
GB2401130A (en) * 2003-04-30 2004-11-03 Weatherford Lamb A traction apparatus
GB2418946B (en) * 2003-07-16 2007-11-07 Schlumberger Holdings Open hole tractor with tracks
US7348892B2 (en) * 2004-01-20 2008-03-25 Halliburton Energy Services, Inc. Pipe mounted telemetry receiver
US7392859B2 (en) 2004-03-17 2008-07-01 Western Well Tool, Inc. Roller link toggle gripper and downhole tractor
US7607497B2 (en) 2004-03-17 2009-10-27 Western Well Tool, Inc. Roller link toggle gripper and downhole tractor
US7624808B2 (en) 2006-03-13 2009-12-01 Western Well Tool, Inc. Expandable ramp gripper
US9476274B2 (en) 2009-11-24 2016-10-25 Maersk Olie Og Gas A/S Apparatus and system and method of measuring data in a well extending below surface
DK177312B1 (en) * 2009-11-24 2012-11-19 Maersk Olie & Gas Apparatus and system and method for measuring data in a well propagating below the surface
WO2012069541A1 (fr) * 2010-11-24 2012-05-31 Welltec A/S Système de fond de puits comprenant une unité sans fil
CN103228861A (zh) * 2010-11-24 2013-07-31 韦尔泰克有限公司 具有无线单元的井下系统
EP2458137A1 (fr) * 2010-11-24 2012-05-30 Welltec A/S Unité de fonds de puits sans fil
US9957789B2 (en) 2010-11-24 2018-05-01 Welltec A/S Downhole system having a wireless unit
EP2458138A1 (fr) * 2010-11-24 2012-05-30 Welltec A/S Système de fonds de puits doté d'une unité sans fil
US9328577B2 (en) 2010-11-24 2016-05-03 Welltec A/S Wireless downhole unit
WO2012069540A1 (fr) * 2010-11-24 2012-05-31 Welltec A/S Unité de fond de puits sans fil
US9097087B2 (en) 2011-03-30 2015-08-04 Welltec A/S Fail-safe spring
US9708873B2 (en) 2011-03-30 2017-07-18 Welltec A/S Hydraulic assembly
WO2012130940A1 (fr) * 2011-03-30 2012-10-04 Welltec A/S Panneau d'entretien
WO2012130944A1 (fr) * 2011-03-30 2012-10-04 Welltec A/S Assemblage hydraulique
EP2505767A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ressort à sécurité intégrée
WO2012130942A1 (fr) * 2011-03-30 2012-10-04 Welltec A/S Ressort à sécurité intégrée
CN103459762A (zh) * 2011-03-30 2013-12-18 韦尔泰克有限公司 液压组件
CN103459763A (zh) * 2011-03-30 2013-12-18 韦尔泰克有限公司 模块化井下工具
CN103477022A (zh) * 2011-03-30 2013-12-25 韦尔泰克有限公司 臂组件
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EP2505772A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ensemble hydraulique
EP2505771A1 (fr) * 2011-03-30 2012-10-03 Welltec A/S Ensemble formant bras
WO2012130945A1 (fr) * 2011-03-30 2012-10-04 Welltec A/S Ensemble bras
WO2012130939A1 (fr) * 2011-03-30 2012-10-04 Welltec A/S Outil de forage modulaire
RU2585775C2 (ru) * 2011-03-30 2016-06-10 Веллтек А/С Работающий на кручение элемент
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US9512688B2 (en) 2011-03-30 2016-12-06 Welltec A/S Arm assembly
US9518437B2 (en) 2011-03-30 2016-12-13 Welltec A/S Modular downhole tool
RU2605106C2 (ru) * 2011-03-30 2016-12-20 Веллтек А/С Гидравлический агрегат
US9447648B2 (en) 2011-10-28 2016-09-20 Wwt North America Holdings, Inc High expansion or dual link gripper
EP2847416A4 (fr) * 2012-06-14 2016-09-21 Halliburton Energy Services Inc Tracteur de puits
US9777545B2 (en) * 2012-06-14 2017-10-03 Halliburton Energy Services, Inc. Well tractor
US20150167416A1 (en) * 2012-06-14 2015-06-18 Halliburton Energy Services, Inc. Well Tractor
US9488020B2 (en) 2014-01-27 2016-11-08 Wwt North America Holdings, Inc. Eccentric linkage gripper
US10156107B2 (en) 2014-01-27 2018-12-18 Wwt North America Holdings, Inc. Eccentric linkage gripper
US10934793B2 (en) 2014-01-27 2021-03-02 Wwt North America Holdings, Inc. Eccentric linkage gripper
US11608699B2 (en) 2014-01-27 2023-03-21 Wwt North America Holdings, Inc. Eccentric linkage gripper
US12024964B2 (en) 2014-01-27 2024-07-02 Wwt North America Holdings, Inc. Eccentric linkage gripper

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