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US20030075341A1 - Packer and method for fixation thereof in a well - Google Patents

Packer and method for fixation thereof in a well Download PDF

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Publication number
US20030075341A1
US20030075341A1 US10/069,348 US6934802A US2003075341A1 US 20030075341 A1 US20030075341 A1 US 20030075341A1 US 6934802 A US6934802 A US 6934802A US 2003075341 A1 US2003075341 A1 US 2003075341A1
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US
United States
Prior art keywords
packer
working medium
well
chamber
seal cup
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.)
Abandoned
Application number
US10/069,348
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English (en)
Inventor
Mikhail Kurlenya
Sergei Serdjukov
Khaim Tkach
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.)
INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA ROSSLISKOI AKADEMII NAUK
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA ROSSLISKOI AKADEMII NAUK reassignment INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA ROSSLISKOI AKADEMII NAUK ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KURLENYA, MIKHAIL, SEDJUKOV, SERGEI VLADIMIROVICH, TKACH, KHAIM BERKOVICH
Publication of US20030075341A1 publication Critical patent/US20030075341A1/en
Abandoned 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
    • E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/134—Bridging plugs

Definitions

  • the contemplated invention relates to the oil-producing industry and is intended for raising the producing ability of wells by intensifying oil influxes, and also for overhauling wells, for shutting-off water-bearing strata, etc.
  • a packer disclosed in Inventor's Certificate of the USSR, No. 304345, Cl. E21B33/12, published in Bulletin of Inventions No. 17, 1971, comprising a body with radial ducts, sealing members with sockets, a housing, and a fixing unit with spring-loaded slips interacting with pushers and with the toothed surface of the connecting pipe.
  • a piston rigidly connected to the pushers, and the space under the piston is communicated with the casing pipe space.
  • a disadvantage of the known packer is its low operation reliability because of possible clogging of ducts “a” and “b” and spaces “A” and “B” with particles found in the well fluid. Furthermore, the cross-section of the central duct of the packer is sharply reduced because of the concentrically arranged body, annular piston and housing.
  • a packer disclosed in Inventor's Certificate of the USSR, No. 1099047, Cl. E21B33/12, published in Bulletin of Inventions No. 23, 1984, comprising a hollow body with radial ducts, on which a packing element with a space for its drive is mounted, disposed in the body with a possibility of its axial travel, and a hollow shaft, blanked-off in its lower portion, associated with a string and provided with two rows of radial ducts for the communication of the in-string space with the annulus above the packer and with the space of the drive of the sealing element, respectively.
  • the packer is provided with a housing with radial ducts, installed above the sealing element, constituting together with the sealing element as chamber, in which a spring-loaded connecting-pipe sleeve is installed, the communication of the space above the packer with the in-pipe space being effected via the duct of the connecting-pipe sleeve.
  • a disadvantage of this prior-art packer is complexity of its construction and, as a result, a low reliability of the packer operation, since particles present in the well fluid may clog the duct “A” and the openings communicating its inner space with the upper one, as well as the upper and lower chambers.
  • the load-bearing element is provided with annular resilient seals installed coaxially on the tubular chamber in clearances between the faces of the locking flanges and the expandable cheeks.
  • the locking flanges are installed between the expandable cheeks, and on their outer cylindrical surfaces and on the inner surfaces of the expandable cheeks grooves and mating projections are made.
  • the known load-bearing element is used for breaking rocks and other monolithic objects into blocks. It cannot be used directly as a packer, because it is intended for disintegrating adjacent rocks rather than for being fixed to the well walls and for sealing the well space, due to the presence of a clearance between the expandable cheeks and the inserts, which precludes sealing along their conjugated peripheral surfaces and the well surface. Furthermore, for disintegrating rocks a concentrated force is required, which should be transmitted to the rocks, therefore the peripheral surfaces do not adjoin the rocks over the entire circumference, their contact area must be small. These properties are not required for a packer.
  • a method of fixing a packer in a well is known, which is effected for a packer whose construction is disclosed in Inventor's Certificate of the USSR, No. 252244, Cl. E21B, published in Bulletin of Inventions No. 29, 1969.
  • This method consists in that the sealing elements of the packer are wedged out by shifting one part thereof with respect to the other, the packer elements being shifted having conical surfaces (in a longitudinal section two neighboring elements have an inclined surface, and each element is made as a triangle, the base of one of the neighboring elements facing the wall of the well and the base of the other of the neighboring elements facing the longitudinal axis of the well).
  • the pins are cut off, and the packer cross-section is thereby reduced.
  • a method of fixing a packer is known, which is effected in a packing device according to Inventor's Certificate of the USSR, No. 898043, Cl. E21B33/12, published in Bulletin of Inventions No. 2, 1982.
  • This method consists in varying the radial size of the sealing element of the packing device by subjecting it to a mechanical axial effect, this effect being carried out in two steps, namely: first, the lower portion of the packing device is abutted against the well bottom by shifting one of the parts of the device with respect to the other in an axial direction; then a compression is provided by means of a hydraulic head.
  • This known method is disadvantageous in that the packing device cannot be installed high from the well bottom, because the device is controlled by the force which originates during the interaction with the face of the well. Besides, using two drives for fixing and disconnecting involves complexities in the construction and control of the packing device.
  • a disadvantage of this known method is that it does not provide reliable operation of the packer, since it is necessary to supply constantly well fluid under pressure, which, ultimately, leads to clogging the working chamber of the packer, which transmits hydraulic pressure of the fluid via the moving piston to the sealing elements of the packer.
  • the technical problem solved by the contemplated invention is to increase the reliability of fixing the packer in a well owing to the effect produced by the pressure of the working medium of the packer drive on a comparatively large area of contact of the packer with the walls of the well, and also owing to simplifying the construction of the packer and the technology of installing it in a well at any distance from the well bottom.
  • Such construction of the packer makes it possible to dispose the chamber along the longitudinal axis of the packer, this contributing to a reduction of its radial size and at the same time to increase the area of contact of the seal cup with the walls of the chamber, whereby the reliability of fixing the packer in a well is increased.
  • thermoheater it is possible to use a liquid as the working medium and a thermoheater as the element bringing the working medium from its initial aggregate state to another.
  • Such construction of the packer makes it possible to bring in the simplest manner the working medium in the form of a liquid (the initial aggregate state) into steam (another, gaseous, aggregate state).
  • the volume occupied by the working medium increases by as much as hundreds of times, or with the volume remaining the same, the pressure of gases formed on bringing the working medium from the initial aggregate state to another increases in the same proportion, this making it possible to fix the packer reliably to the walls of the well.
  • a cooler as the element bringing the working medium from its initial aggregate state to another.
  • the ice At the temperature of ⁇ 4° C. the ice will have maximum volume and ensure reliable fixing of the packer to the walls of the well.
  • a gas it is necessary to convert the latter into a liquid and then to cool it down, converting it into ice with a temperature predetermining it maximum volume.
  • Such construction of the packer makes it possible to decompose the liquid by electrolysis into gaseous components (for instance, to decompose water into oxygen and hydrogen), which will provide an increase in the volume of the working medium and, consequently, an increase of pressure in the working part of the chamber, which will expand the seal cup in a radial direction, providing thereby reliable fixing of the packer to the walls of the well.
  • gaseous components for instance, to decompose water into oxygen and hydrogen
  • a heated resistance element as the fuse.
  • Such a packer has the simplest construction and is universal, because with this resistance element it is possible both to heat the working medium if it is a liquid and to ignite it if it is combustible.
  • Such a packer is noted for a simplest construction and easy servicing.
  • gunpowder as the combustible substance. This substance is widely spread, and, having a minimum volume, is convenient in service and provides the desired effect.
  • a combustible liquid for instance, gasoline, may be used as the combustible substance. It is available at any well site, and therefore such a packer is convenient in service.
  • seal cup comprised of an element interacting with the working part of the chamber and several elements encompassing said element, all said elements being arranged coaxially.
  • the seal cup can be made elastic enough for radial deformation owing to the elasticity of the element interacting with the working part of the chamber, and rigid for increasing the wear-resistance of the elements encompassing the first said element.
  • a working medium of the seal cup drive brings the working medium from its initial aggregate state, in which the working medium occupies minimum volume, into another aggregate state, in which the working medium occupies a larger volume.
  • FIG. 1 illustrates the operation of mounting a packer in a well (in a casing pipe);
  • FIG. 2 illustrates the operation of bringing a working medium from its initial aggregate state to another, whereby there occurs radial deformation of a seal cup with the formation of a closed system (a packer with a thermocouple);
  • FIG. 3 shows a packer with a thermocouple, a thermoheater and a remote-controlled electric valve, e.g., an electromagnetic one (an open packer system);
  • FIG. 4 shows a packer with several working parts of a drive chamber, arranged along the longitudinal axis of the well;
  • FIG. 5 shows a packer with coaxial elements of a seal cup and electrodes.
  • Packer 1 (FIG. 1) secured to a suspension means (a wire rope or pipe 2 ) is mounted into a well (into a casing pipe not shown in the Figure) 3 .
  • the packer 1 comprises a body 4 with a seal cup 5 and its drive which expands the seal cup 5 in a radial direction.
  • the drive may have a single chamber 6 (FIGS. 1 - 3 ) or the chamber may consist of parts 7 and 8 (FIGS. 4, 5), (the part 7 being a preparatory one, and the part(s) 8 being working one(s)), interconnected by at least one duct 9 .
  • the chamber 6 (FIGS. 1) secured to a suspension means (a wire rope or pipe 2 ) is mounted into a well (into a casing pipe not shown in the Figure) 3 .
  • the packer 1 comprises a body 4 with a seal cup 5 and its drive which expands the seal cup 5 in a radial direction.
  • the drive may have a single chamber 6 (FIGS.
  • thermocouple 10 when converting a liquid into a solid (ice), a thermocouple 10 is required (FIGS. 1 - 3 ); when converting a liquid into a gas, a thermoheater 11 is required (FIGS. 3, 4) or electrodes 12 , 13 with a source of current (not shown in FIG.
  • oxygen and hydrogen are required for decomposing water into gaseous components (oxygen and hydrogen); when converting a solid into a gas it is necessary to produce a spark igniting the solid (oxygen for burning the solid may be in a free state in the chamber 6 or in the part 7 or be in the bound state in the solid itself), for which purpose the electrodes 12 and 13 spaced apart to a distance for a spark (breakdown) to originate therebetween, with a source of current may be used.
  • one of said parts 7 serves for accommodating the working medium in its initial aggregate state, in which it occupies a minimum volume (in the form of a liquid or a solid), and the other part 8 , the working one (FIG. 4), may be arranged along the seal cup 5 on the inside thereof, and the working medium in the gaseous state comes to said part 8 , ensuring radial deformation of the seal cup 5 .
  • the chamber 6 or the working part 8 of the chamber may be made as one part extending under the seal 5 (FIGS.
  • the chamber may have several working parts 8 , whose number corresponds to the number of contiguous surfaces of the seal cup 5 (FIGS. 4, 5).
  • the preparatory and working parts 7 , 8 of the chamber are arranged along the longitudinal axis of the packer 1 (FIGS. 4, 5).
  • the seal cup 5 may have one part contiguous with the walls of the well 3 (FIGS. 1 - 3 ) or several parts 14 - 16 (FIG. 4) contacting the walls of the well 3 and arranged in succession along the longitudinal axis.
  • An embodiment is possible (FIG.
  • seal cup 5 wherein the seal cup 5 , being of a combination-type, consists of one element 17 interacting with the working part 8 of the chamber, and of several elements 14 - 16 encompassing the element 17 and being coaxial thereto.
  • the seal cup 5 is secured on the body 4 by ring springs or yokes 18 (they may be round (FIGS. 1, 2, 5 ) or flat (FIGS. 3, 4) in cross-section.
  • the ring springs 18 may be secured at the ends of the seal cup 5 (FIGS. 1 - 3 , 5 ) or in the middle of it (FIG. 4).
  • the packer 1 may comprise a closed system (FIGS. 1, 2, 4 ) in which the working medium is not discharged to the atmosphere through the well 3 .
  • the preparatory part 7 of the chamber is hermetically closed with a plug 19 .
  • a remote-controlled valve 20 is provided (it is most expedient to use an electromagnetic valve), which, when necessary, discharges the working medium, that is in the gaseous state, into the well 3 and thence to the atmosphere.
  • Shown at 21 (FIGS. 1 - 4 ) is a cable along which electric power is supplied to the thermocouple 10 ; shown at 22 (FIGS.
  • thermoheater 11 is a cable along which electric power is supplied to the thermoheater 11 ; shown at 23 (FIGS. 3, 5) is a cable via which the electromagnetic valve 20 is controlled; shown at 24 , 25 (FIG. 5) are cables connecting the electrodes 12 , 13 to a source of current.
  • the packer 1 is lowered on the wire rope (pipe) 2 into the well (casing pipe) 3 (FIGS. 1 - 5 ) to a depth at which the packer has to be fixed.
  • a working medium is selected such that at the temperature at the site of mounting the packer 1 in the well 3 the volume of the working medium in its initial aggregate state should be minimum.
  • the working medium in its initial aggregate state occupies minimum volume, when it is in the solid or liquid aggregate state; therefore, the size of the chamber 6 and of the part 7 of the chamber (FIGS. 1 - 5 ) in which the working medium is disposed may be reduced. Then the working medium is brought from its initial aggregate state to another.
  • a liquid was used as the working medium, then it must be either converted into a solid (ice), or into a gas.
  • ice has minimum volume at the temperature of ⁇ 4° C., so that ice can be used in a closed volume for acting upon the walls surrounding it, and, consequently, on the seal cup 5 as well.
  • thermocouple 10 which brings the temperature of the liquid down below its freezing point (FIG. 1). The ice will expand the seal cup 5 , fixing the packer 1 to the walls of the well 3 (FIG. 2). It is expedient to use special liquids which ensure attaining maximum volume at minimum power consumption.
  • thermoheater 11 (FIGS. 3, 4) which will heat the liquid to a temperature not lower than its boiling point and convert it into a gas.
  • the temperature in the well 3 at the level of mounting the packer 1 will promote the heating.
  • the heating may be continued.
  • the gas pressure in the chamber 6 in the parts 7 , 8 of the chamber will be increased, and this will lead to the deformation of the seal cup 5 , and, consequently, to reliable fixing of the packer 1 to the walls of the well 3 .
  • Conversion of a liquid into a gas can also be accomplished by decomposing the liquid into hydrogen and oxygen (if the liquid employed is water). For this to be done, it is necessary to have electrodes 12 , 13 (FIG. 5) with a source of current (not shown in the Figure).
  • a particular use of any of the methods of bringing the working medium from its initial aggregate state to another will depend on the economic expedience and the degree of its development under particular conditions.
  • a solid working medium occupies minimum volume, which provides for minimizing the size of the packer 1 , simplifying its mounting into the well 3 , especially into a small-diameter casing pipe.
  • the use of a liquid working medium, e.g., of water, is easier to carry out and safer in servicing, because water is not explosion-hazardous and is available in any well 3 .
  • the packer 1 is embodied with a single chamber 6 (FIGS. 1 - 3 ), then the action of the working medium on the seal cup 5 occurs in also in the chamber 6 , this being more simple structurally.
  • the chamber consists of several parts: a preparatory part 7 and working parts 8 (FIGS. 4, 5), then in one of them, in the part 7 , the working medium is brought from one aggregate state to another, and the other part(s) 8 serve as the working one(s), that is, the action of the working medium on the seal cup 5 occurs therein.
  • the chamber has several parts 7 , 8 , there is a possibility of increasing the area of contacting the seal cup 5 by extending the latter along the longitudinal axis of the packer 1 . Another effect is a reduction of the diameter size of the packer 1 , since the chamber 7 may be arranged along the longitudinal axis of the parts 8 of the chamber.
  • the interaction of the seal cup 5 with the wall of the well 3 may be either direct (FIGS.
  • the elements 14 - 16 which may be made more wear-resistant.
  • the element of the seal cup 5 interacting with the working part 8 of the chamber, may be made elastic, while the elements encompassing said element may be made rigid, i.e., more wear-resistant.
  • the packer 1 comprises a closed system, that is, has plug 19 (FIGS. 1, 2, 4 ) which provides for the tightness of the chamber 6 or of the parts 7 , 8 of the chamber, in this case it is necessary to cool the gaseous working medium down in order to lower its pressure therein. This may be effected by natural cooling by way of the heat transfer through the walls of the chamber 6 and of the parts 7 , 8 of the chamber of the packer 1 , such a process being time-consuming. This process can be accelerated by cooling the working medium artificially with the help of the thermocouple 10 (FIGS. 1 - 3 ).
  • thermoheater 11 and thermocouple 10 in the construction of the packer 1 (FIGS. 3, 4). This will provide a better system of controlling the packer operation.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Earth Drilling (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Piles And Underground Anchors (AREA)
US10/069,348 2000-07-03 2001-07-02 Packer and method for fixation thereof in a well Abandoned US20030075341A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2000117555 2000-07-03
RU2000117555/03A RU2191249C2 (ru) 2000-07-03 2000-07-03 Пакер и способ его фиксации в скважине

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Country Status (7)

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US (1) US20030075341A1 (fr)
CN (1) CN1383468A (fr)
CA (1) CA2383978A1 (fr)
GB (1) GB2371820A (fr)
MX (1) MXPA02002095A (fr)
RU (1) RU2191249C2 (fr)
WO (1) WO2002002905A1 (fr)

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US20100089477A1 (en) * 2008-10-14 2010-04-15 Balcke-Durr Gmbh Plug for Sealed Closing of a Pipe
US20110094756A1 (en) * 2009-10-28 2011-04-28 Chevron U.S.A. Inc. Systems and methods for initiating annular obstruction in a subsurface well
US20110094755A1 (en) * 2009-10-28 2011-04-28 Chevron U.S.A. Inc. Systems and methods for initiating annular obstruction in a subsurface well
CN102539078A (zh) * 2012-02-17 2012-07-04 中国石油天然气股份有限公司 分体式可重复试验装置
WO2012136258A1 (fr) * 2011-04-07 2012-10-11 Statoil Petroleum As Garniture d'étanchéité réagissant à la température et système de production d'hydrocarbures associé
WO2012097257A3 (fr) * 2011-01-13 2012-11-08 Baker Hughes Incorporated Dispositifs de fond de puits introduits par commande électrique et mis en place par voie hydraulique
EP2853681A1 (fr) * 2013-09-30 2015-04-01 Welltec A/S Barrière annulaire thermo-expansée
JP2017049209A (ja) * 2015-09-04 2017-03-09 株式会社ミツトヨ 設置物固定機構
CN108150129A (zh) * 2018-01-08 2018-06-12 中国矿业大学 一种基于电解水的单胶囊封孔装置
CN109162664A (zh) * 2018-10-24 2019-01-08 中国石油化工股份有限公司 井下金属封隔器及其制造和使用方法
US20240287866A1 (en) * 2021-06-25 2024-08-29 Interwell Norway As Downhole well tool and method for permanently sealing a downhole well

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US7828068B2 (en) 2002-09-23 2010-11-09 Halliburton Energy Services, Inc. System and method for thermal change compensation in an annular isolator
US6854522B2 (en) 2002-09-23 2005-02-15 Halliburton Energy Services, Inc. Annular isolators for expandable tubulars in wellbores
US8307904B2 (en) * 2010-05-04 2012-11-13 Halliburton Energy Services, Inc. System and method for maintaining position of a wellbore servicing device within a wellbore
MX2013006472A (es) 2010-12-07 2013-10-01 Colgate Palmolive Co Aparato para conducir experimentos de cuidado bucal y metodo de formacion y uso del mismo.
RU2460873C1 (ru) * 2011-04-13 2012-09-10 Олег Павлович Маковеев Пороховой генератор давления и способ его применения
CN104596753B (zh) * 2015-01-20 2017-03-08 中国石油天然气股份有限公司 基于热力封隔器测试装置的热力封隔器测试方法
CN106677741B (zh) * 2017-01-06 2019-05-07 山东科技大学 一种瓦斯抽采钻孔定点密封方法

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US4438933A (en) * 1982-05-06 1984-03-27 Halliburton Company Hydraulic set high temperature isolation packer
US4441721A (en) * 1982-05-06 1984-04-10 Halliburton Company High temperature packer with low temperature setting capabilities
US5404946A (en) * 1993-08-02 1995-04-11 The United States Of America As Represented By The Secretary Of The Interior Wireline-powered inflatable-packer system for deep wells
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EA021952B1 (ru) * 2009-10-28 2015-10-30 Шеврон Ю.Эс.Эй. Инк. Система и способ создания кольцевой пробки в подземной скважине
US20110094756A1 (en) * 2009-10-28 2011-04-28 Chevron U.S.A. Inc. Systems and methods for initiating annular obstruction in a subsurface well
US20110094755A1 (en) * 2009-10-28 2011-04-28 Chevron U.S.A. Inc. Systems and methods for initiating annular obstruction in a subsurface well
WO2011056393A3 (fr) * 2009-10-28 2011-07-07 Chevron U.S.A. Inc. Systèmes et procédés de démarrage d'une obstruction annulaire dans un puits de subsurface
WO2011056394A3 (fr) * 2009-10-28 2011-09-09 Chevron U.S.A. Inc. Systèmes et procédés de démarrage d'une obstruction annulaire dans un puits de subsurface
CN102639810A (zh) * 2009-10-28 2012-08-15 雪佛龙美国公司 用于产生地下井中的环形堵塞的系统和方法
US8297368B2 (en) 2009-10-28 2012-10-30 Chevron U.S.A. Inc. Systems and methods for initiating annular obstruction in a subsurface well
WO2012097257A3 (fr) * 2011-01-13 2012-11-08 Baker Hughes Incorporated Dispositifs de fond de puits introduits par commande électrique et mis en place par voie hydraulique
US8684100B2 (en) 2011-01-13 2014-04-01 Baker Hughes Incorporated Electrically engaged, hydraulically set downhole devices
WO2012136258A1 (fr) * 2011-04-07 2012-10-11 Statoil Petroleum As Garniture d'étanchéité réagissant à la température et système de production d'hydrocarbures associé
CN102539078A (zh) * 2012-02-17 2012-07-04 中国石油天然气股份有限公司 分体式可重复试验装置
WO2015044404A3 (fr) * 2013-09-30 2015-07-02 Welltec A/S Barrière annulaire à extension thermique
EP2853681A1 (fr) * 2013-09-30 2015-04-01 Welltec A/S Barrière annulaire thermo-expansée
US10344555B2 (en) 2013-09-30 2019-07-09 Welltec Oilfield Solutions Ag Thermally expanded annular barrier, system, and method with a thermally decomposable compound
JP2017049209A (ja) * 2015-09-04 2017-03-09 株式会社ミツトヨ 設置物固定機構
CN108150129A (zh) * 2018-01-08 2018-06-12 中国矿业大学 一种基于电解水的单胶囊封孔装置
CN109162664A (zh) * 2018-10-24 2019-01-08 中国石油化工股份有限公司 井下金属封隔器及其制造和使用方法
US20240287866A1 (en) * 2021-06-25 2024-08-29 Interwell Norway As Downhole well tool and method for permanently sealing a downhole well
US12312900B2 (en) * 2021-06-25 2025-05-27 Interwell Norway As Downhole well tool and method for permanently sealing a downhole well

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WO2002002905A1 (fr) 2002-01-10
RU2191249C2 (ru) 2002-10-20
GB2371820A8 (en) 2002-08-21
GB0204728D0 (en) 2002-04-17
CN1383468A (zh) 2002-12-04
GB2371820A (en) 2002-08-07
CA2383978A1 (fr) 2002-01-10
WO2002002905B1 (fr) 2002-04-04
MXPA02002095A (es) 2003-10-14

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