EP2668403B1 - Dispositif pour transmettre, par un fluide, une pression hydraulique de travail pour actionner un dispositif hydraulique en eau profonde - Google Patents

Dispositif pour transmettre, par un fluide, une pression hydraulique de travail pour actionner un dispositif hydraulique en eau profonde Download PDF

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Publication number
EP2668403B1
EP2668403B1 EP12700609.6A EP12700609A EP2668403B1 EP 2668403 B1 EP2668403 B1 EP 2668403B1 EP 12700609 A EP12700609 A EP 12700609A EP 2668403 B1 EP2668403 B1 EP 2668403B1
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EP
European Patent Office
Prior art keywords
pressure
pressure chamber
accumulator
cylinder
piston
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Active
Application number
EP12700609.6A
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German (de)
English (en)
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EP2668403A1 (fr
Inventor
Martin Groben
Elmar Betzler
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.)
Hydac Technology GmbH
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Hydac Technology GmbH
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Publication of EP2668403A1 publication Critical patent/EP2668403A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • 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
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • E21B33/064—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers specially adapted for underwater well heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/006—Compensation or avoidance of ambient pressure variation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/405—Housings

Definitions

  • the invention relates to a device for transmitting a hydraulic working pressure in a hydraulic fluid for pressure actuation of hydraulic devices in deep-sea systems with the features in the preamble of claim 1.
  • BOP low-out preventer
  • US 6 202 753 B1 discloses a generic device for transmitting a hydraulic working pressure in a pressure fluid for pressure actuation of hydraulic devices of deep-sea systems, in particular deep water boreholes, wherein in a cylinder arrangement there is a first pressure space for the pressure fluid, a piston arrangement which can be moved to change the volume of this pressure space and at least a second pressure space, The ambient pressure of the deep sea can be acted upon for a movement of the piston arrangement generating the working pressure in the first pressure chamber, whereby there is a pressure accumulator assigned to the cylinder arrangement, the movable separating element of which applies the deep sea pressure to the second pressure chamber, the cylinder arrangement being coaxial with one another by an intermediate one separating bodies located there have separate cylinder parts for each piston, which have a piston guided through the separating body tange are connected to each other and each adjoin one of the pressure chambers on both sides, the first and second pressure chambers each being located between the separating body and one or the other piston, with the piston delimiting the first pressure
  • the invention has for its object to provide a device of the type under consideration, while maintaining the advantages as they result from the transmission of the working pressure Grown up on the spot, ensuring improved operational safety.
  • this object is achieved by a device which has the features of claim 1 in its entirety.
  • An essential special feature of the invention is, according to the characterizing part of patent claim 1, that the movable separating element of the pressure accumulator separates a space connected to the sea water from an actuating space which contains an actuating fluid and is in communication with the second pressure space, and that the bladder accumulator or hydraulic accumulator Has corrosion-resistant storage housing in the form of an elongated storage cylinder which is arranged parallel and adjacent to the cylinder arrangement and extends along the entire length of the cylinder part containing the second pressure chamber.
  • the working pressure in the cylinder arrangement is not generated or transmitted by means of the sea water acting directly on the piston arrangement, but a pressure accumulator is connected upstream of the cylinder arrangement, from which an actuating fluid which is under the deep sea pressure can be supplied to the cylinder arrangement.
  • the pressure accumulator has a space connected to the sea water, which is separated by a movable separating element from the space containing the actuating fluid, which is in communication with the corresponding pressure space of the cylinder arrangement in order to apply the deep-sea pressure to it by means of the actuating fluid and thus causing the piston movement that creates the working pressure.
  • a bladder accumulator or hydraulic accumulator is provided, which is advantageously equipped with a bladder, for example made of plastic or a synthetic rubber.
  • the arrangement is such that the bladder accumulator or hydraulic accumulator has a storage housing in the form of an elongated storage cylinder, which is arranged parallel and adjacent to the cylinder arrangement and extends along the entire length of the cylinder part containing the second pressure chamber.
  • the pressure accumulator can advantageously have a separating element which is insensitive to the action of sea water, the parts of the upstream pressure accumulator coming into contact with salt water either being made of stainless steel or coated.
  • a water-glycol mixture can be provided as the actuating fluid in the pressure accumulator.
  • a liquid has a corrosion-preventing effect, has a friction-reducing effect, like a lubricant, and at the same time offers frost protection, which eliminates the risk of malfunctions due to icing, which could occur due to cooling during expansion processes.
  • a pressure vessel connected to the prestressing pressure space for the gas under the prestressing pressure.
  • the gas volume of the additional pressure vessel is available for the cylinder arrangement, which supports the piston movement taking place over the entire stroke of the piston to generate the working pressure.
  • the pressure vessel can be formed by a cylindrical tubular body which is arranged parallel and adjacent to the cylinder parts of the cylinder arrangement.
  • the diameter of the tubular body is preferably larger than the cylinder diameter of the cylinder arrangement, so that there is a relatively large additional volume of the gas under prestressing pressure.
  • a line can be formed in the end piece, which is located at the closed end of the prestressing pressure chamber, which connects this to the pressure vessel via a hole in the associated closed end of the tubular body and in the closed end of the prestressing pressure chamber.
  • the exemplary embodiment of the device according to the invention shown in the drawing is intended for use with a so-called "blow-out preventer” (BOP), which is arranged as a safety system in a deep-water drilling at a great depth of sea, for example 3600 m.
  • BOP low-out preventer
  • the device can be of considerable size for such applications.
  • the cylinder arrangement forming the main part of the device, which is denoted as a whole by 1 in the drawing, can for example have a length in the range of 4 m.
  • the cylinder arrangement 1 is designed in the manner of a double-piston accumulator, with a first cylinder part 3 and a second cylinder part 5, which are arranged coaxially to one another and are connected to one another via a separating body 7, which seals the first cylinder part 3 and second cylinder part 5 against one another.
  • a piston rod 9 extends through the separating body 7, to which a piston 11, which is displaceable in the first cylinder part 3, and a piston 13, which is displaceable in the second cylinder part 5, are attached at one end.
  • the piston rod 9 is guided through the separating body 7 under sealing.
  • the cylinder part 3 is closed at the end by a closure part 15 and the cylinder part 5 by a closure part 17.
  • the cylinder arrangement 1 defines four internal pressure spaces, namely between the separating body 7 and the piston 13 located in the second cylinder part 5 a first pressure space 19 which contains the pressure fluid which is provided for actuating the BOP.
  • a pressure vessel 27 in the form of a cylindrical tubular body is arranged next to the cylinder arrangement 1, parallel to and closely adjacent thereto, and has the same length as the cylinder arrangement 1, but a larger diameter, preferably twice the diameter thereof.
  • the pressure vessel 27 is closed at the end by closure parts 29 and 31.
  • the mutually aligned closed ends of the cylinder parts 3 and 5 and of the pressure container 27, that is to say the respective closure parts 15 and 29 as well as 17 and 31, are each connected to one another via an end piece 33 or 35.
  • the pressure vessel chamber 27 is also connected to the preload pressure chamber 23 via the end piece 35.
  • the device completes a corrosion-resistant pressure accumulator 37, in the exemplary embodiment in the form of a bladder accumulator or hydraulic accumulator, with an elongated plastic-coated accumulator housing 39 which extends along the pressure container 27, parallel and adjacent to it, with a length which is approximately the length of the adjacent first cylinder part 3 corresponds.
  • the actuation chamber 43 is connected via a pressure line 49 to an actuation inlet 51, which is connected to the first pressure chamber 21 via a channel in the separating body 7 of the cylinder arrangement 1.
  • a low gas pressure preferably negative pressure
  • N 2 gas filling
  • the actuating fluid in the actuating space 43 of the bladder accumulator or hydraulic accumulator 37 it is filled with a water-glycol mixture.
  • the first pressure space 21 is accordingly biased via the line 49 from the pressure accumulator 37 by the actuating fluid with an actuation pressure of 360 bar.
  • the pressure accumulator 27 and thus the preload Pressure chamber 23 of the cylinder arrangement 1 is filled with a prestressing pressure (N 2 ) gas.
  • N 2 prestressing pressure
  • the sea water pressure in the second pressure chamber 21 of, for example, 360 bar (3600 m water depth) and a low pressure pressure chamber 25 the displacement movement of the pistons 11, 13 is therefore in Fig.
  • a pressure level of substantially more than 600 bar is available in order to provide the working pressure in the hydraulic fluid contained in the first pressure chamber 19, which is therefore also available at the working outlet 63 of the separating body 7. Due to the relatively large volume of the biasing gas, which is available in the pressure vessel 27 thanks to the supply volume, the entire piston stroke path can be assisted by the biasing pressure.
  • the function of the device according to the invention is not only particularly reliable because, thanks to the pressure reservoir 37, the seawater is separated from the cylinder arrangement 1, but the hydraulic working pressure is also generated particularly efficiently thanks to the supply volume of the prestressing gas pressure available in the pressure vessel 27.

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  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Claims (8)

  1. Installation de transmission d'une pression de travail hydraulique d'un liquide sous pression pour l'actionnement par la pression de dispositifs hydrauliques d'installations en eau profonde, notamment de forages en eau profonde, dans laquelle, dans un agencement (1) de cylindre, il y a premier espace (19) sous pression pour le liquide sous pression, un agencement (9, 11, 13) de piston mobile pour modifier le volume de cet espace (19) sous pression, ainsi qu'au moins un deuxième espace (21) sous pression, qui, pour un déplacement, donnant la pression de travail dans le premier espace (19) sous pression, de l'agencement (9, 11, 13) de piston, peut être soumis à la pression ambiante de l'eau profonde, dans laquelle il y a un accumulateur (37) de pression, qui est associé à l'agencement (1) de cylindre, qui contient un fluide d'actionnement et qui est en communication avec le deuxième espace (21) sous pression, afin de soumettre celui-ci à la pression de l'eau profonde au moyen du fluide d'actionnement, dans laquelle l'agencement (1) de cylindre a, pour chaque piston (11, 13), deux parties (3, 5) de cylindre, coaxiales l'une à l'autre, séparées l'une de l'autre par un séparateur (7) se trouvant entre elles, qui sont reliées l'une à l'autre par une tige (9) de piston traversant de manière étanche le séparateur (7) et qui sont voisines des deux côtés, respectivement, de l'un des espaces (19, 21) sous pression, le premier (19) et le deuxième espaces (21) sous pression se trouvant, respectivement, entre le séparateur (7) et l'un (13) ou l'autre piston (11), dans laquelle, entre le piston (13), délimitant le premier espace (19) sous pression et l'extrémité (17) fermée de la partie (5) de cylindre concernée, se trouve un espace (23) sous pression de précontrainte pour du gaz, comme de l'azote (N2), se trouvant sous une pression de précontrainte,
    caractérisée en ce que l'accumulateur de pression est un accumulateur à vessie ou un hydro-accumulateur, le séparateur (41) mobile de l'accumulateur (37) de pression séparant un espace (45) pouvant communiquer avec l'eau de mer d'un espace (43) d'actionnement, qui contient le fluide d'actionnement et qui communique avec le deuxième espace (21) sous pression, et en ce que l'accumulateur à vessie ou l'hydro-accumulateur (37) a une enveloppe (39) d'accumulateur, qui résiste à la corrosion, sous la forme d'un cylindre accumulateur s'étendant en longueur, qui est disposé parallèlement à l'agencement (1) de cylindre et en en étant voisin et qui s'étend le long de la partie (3) du cylindre comportant le deuxième espace (21) sous pression sur toute la longueur de cette partie.
  2. Installation suivant la revendication 1, caractérisée en ce que l'accumulateur (37) de pression a un séparateur (41) insensible à l'action de l'eau de mer.
  3. Installation suivant la revendication 1 ou 2, caractérisée en ce qu'il est prévu un mélange eau-glycol comme fluide d'actionnement dans l'accumulateur (37) de pression.
  4. Installation suivant l'une des revendications précédentes,
    caractérisée en ce qu'un espace (25) de pression sous basse pression, pour un gaz, comme N2, se trouvant sous une pression basse, de préférence en dépression, se trouve entre le piston (11) délimitant le deuxième espace (21) sous pression et l'extrémité (15) fermée de la partie (3) de cylindre concernée.
  5. Installation suivant l'une des revendications précédentes,
    caractérisée en ce qu'il y a un réservoir (27) sous pression pour le gaz sous la pression de précontrainte, qui communique avec l'espace (23) sous la pression de précontrainte.
  6. Installation suivant la revendication 5, caractérisée en ce que le récipient sous pression est formé d'une pièce (27) tubulaire cylindrique, qui est disposée parallèlement aux parties (3, 5) de cylindre de l'agencement (1) de cylindre et en en étant étroitement voisine.
  7. Installation suivant la revendication 6, caractérisée en ce que la pièce (27) tubulaire s'étend sur toute la longueur de l'agencement (1) de cylindre et en ce que les extrémités (15, 17) fermées, alignées l'une sur l'autre, des parties (3, 5) de cylindre de l'agencement (1) de cylindre et de la pièce (27) tubulaire, sont reliées entre elles, respectivement, par un embout (33, 35).
  8. Installation suivant la revendication 7, caractérisée en ce que, dans l'embout (35), qui se trouve à l'extrémité (17) fermée de l'espace (23) sous pression de précontrainte, est formé un conduit (57), qui, en passant par un trou (59, 61) dans l'extrémité (31) fermée associée de la pièce (27) tubulaire et dans l'extrémité (17) fermée de l'espace (23) sous pression de précontrainte, met celui-ci en communication avec le récipient (27) sous pression.
EP12700609.6A 2011-01-25 2012-01-17 Dispositif pour transmettre, par un fluide, une pression hydraulique de travail pour actionner un dispositif hydraulique en eau profonde Active EP2668403B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011009276A DE102011009276A1 (de) 2011-01-25 2011-01-25 Vorrichtung zum Übertragen eines hydraulischen Arbeitsdruckes in einer Druckflüssigkeit zur Druckbetätigung hydraulischer Einrichtungen von Tiefseeanlagen
PCT/EP2012/000166 WO2012100915A1 (fr) 2011-01-25 2012-01-17 Dispositif pour transmettre une pression de fonctionnement hydraulique dans un fluide sous pression pour commander par pression des dispositifs hydrauliques d'installations en haute mer

Publications (2)

Publication Number Publication Date
EP2668403A1 EP2668403A1 (fr) 2013-12-04
EP2668403B1 true EP2668403B1 (fr) 2020-03-18

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EP12700609.6A Active EP2668403B1 (fr) 2011-01-25 2012-01-17 Dispositif pour transmettre, par un fluide, une pression hydraulique de travail pour actionner un dispositif hydraulique en eau profonde

Country Status (4)

Country Link
US (1) US9488198B2 (fr)
EP (1) EP2668403B1 (fr)
DE (1) DE102011009276A1 (fr)
WO (1) WO2012100915A1 (fr)

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DE102013011115A1 (de) 2013-07-03 2015-01-08 Hydac Technology Gmbh Vorrichtung zum Einstellen eines Mediendruckes gegenüber einem Umgebungsdruck
CN103742466B (zh) * 2013-12-02 2017-05-31 成都欧迅科技股份有限公司 高压舱液压控制系统
CN103615787B (zh) * 2013-12-02 2016-07-06 成都欧迅科技股份有限公司 高压舱体温度控制系统
US9664207B2 (en) * 2014-05-09 2017-05-30 Reel Power Licensing Corp. Gas handling method for dual bottle subsea accumulators
CN107614893B (zh) * 2015-04-15 2020-08-11 卷轴动力许可公司 活塞式蓄能器囊设备系统和方法
US9587455B2 (en) 2015-04-15 2017-03-07 Reel Power Licensing Corp. Piston accumulator bladder apparatus system and method
USD797169S1 (en) * 2015-08-08 2017-09-12 Abduz Zahid Pulsation dampener bladder
WO2017062040A1 (fr) * 2015-10-09 2017-04-13 Fmc Technologies, Inc. Accumulateur
DE102016008882A1 (de) 2016-07-20 2018-01-25 Hydac Technology Gmbh Spannzylindervorrichtung
DE102017206498A1 (de) * 2017-04-18 2018-10-18 Robert Bosch Gmbh Druckkompensationseinrichtung eingerichtet für Anwendungen unter Wasser
EP3938659B1 (fr) * 2019-03-12 2023-10-25 Reel Power Licensing Corp. Accumulateur à piston sous-marin
CN115023533A (zh) * 2019-11-11 2022-09-06 J.雷.麦克德莫特股份有限公司 用于水下系统的破坏性联接系统和方法

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Also Published As

Publication number Publication date
US20130340421A1 (en) 2013-12-26
DE102011009276A1 (de) 2012-07-26
US9488198B2 (en) 2016-11-08
WO2012100915A1 (fr) 2012-08-02
EP2668403A1 (fr) 2013-12-04

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