EP2668403A1 - 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 - Google Patents

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

Info

Publication number
EP2668403A1
EP2668403A1 EP12700609.6A EP12700609A EP2668403A1 EP 2668403 A1 EP2668403 A1 EP 2668403A1 EP 12700609 A EP12700609 A EP 12700609A EP 2668403 A1 EP2668403 A1 EP 2668403A1
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure chamber
cylinder
accumulator
piston
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
EP12700609.6A
Other languages
German (de)
English (en)
Other versions
EP2668403B1 (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
Original Assignee
Hydac Technology GmbH
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 Hydac Technology GmbH filed Critical Hydac Technology GmbH
Publication of EP2668403A1 publication Critical patent/EP2668403A1/fr
Application granted granted Critical
Publication of EP2668403B1 publication Critical patent/EP2668403B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 of deep-sea systems, in particular deep water wells, wherein in a cylinder arrangement a first pressure chamber for the Druck Berlin- speed, a movable volume to change the volume of this pressure chamber piston assembly and at least a second pressure chamber are present, which can be acted upon for a working pressure in the first pressure chamber generating movement of the piston assembly with the ambient pressure of the deep sea.
  • BOP low-out preventer
  • the invention has the object to provide a device of the type considered available, while maintaining the advantages, as they arise from the transmission of the working pressure in place, an improved reliability guaranteed.
  • an essential feature of the invention is therefore that, in contrast to the prior art, the working pressure in the cylinder assembly is not generated or transmitted by means of directly acting on the piston assembly seawater, but that the cylinder assembly is preceded by a pressure accumulator, from which the Zylinderano- tion an actuating fluid, which is under the deep sea pressure, can be fed.
  • the pressure accumulator has a space connected to the seawater, which is separated by a movable separating element of the actuating fluid-containing space which is in communication with the corresponding pressure chamber of the cylinder assembly to apply this by means of the actuating fluid to the deep sea pressure and to effect the piston movement, which produces the working pressure.
  • a space connected to the seawater which is separated by a movable separating element of the actuating fluid-containing space which is in communication with the corresponding pressure chamber of the cylinder assembly to apply this by means of the actuating fluid to the deep sea pressure and to effect the piston movement, which produces the working pressure.
  • the accumulator may have a insensitive to the action of seawater separator, wherein the coming into contact with salt water parts of the upstream pressure accumulator either made of stainless steel or coated.
  • a bladder accumulator or hydraulic accumulator can be provided, which is equipped with a bladder, for example made of plastic or a synthetic rubber.
  • a water-glycol mixture in a particularly advantageous manner may be provided as actuating fluid in the accumulator, a water-glycol mixture.
  • a liquid has anti-corrosive effect, acts as a friction-reducing lubricant, and at the same time provides antifreeze protection, which eliminates the risk of icing due to cooling during expansion operations.
  • the cylinder arrangement is provided in the form of a double-piston accumulator, the arrangement can advantageously be such that it comprises two mutually coaxial, separated by a separating body between them cylinder parts for each piston, which via a sealing member guided through the sealed piston rod together are connected and each adjacent to a pressure chamber on both sides, of which the first and the second pressure chamber are each between the separating body and the one and the other piston.
  • Preliminary pressure chamber for pressurized gas, such as N2.
  • pressurized gas such as N2.
  • a pressure vessel connected to the bias pressure space is provided for the gas under the bias pressure.
  • the gas volume of the additional pressure vessel is available for the cylinder arrangement, which supports the piston movement taking place to generate the working pressure over the entire stroke of the piston.
  • the pressure vessel may be formed by a cylindrical tubular body which is arranged parallel and adjacent to the cylinder parts of the cylinder assembly.
  • the diameter of the tubular body is greater than the cylinder diameter of the cylinder arrangement, so that a relatively large additional volume of the under bias pressure gas is present.
  • a line may be formed, which in each case has a bore in the associated closed end of the tube. body and in the closed end of the bias pressure chamber connects this with the pressure vessel.
  • the arrangement can advantageously be made 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 cylindrical part containing the second pressure chamber over its entire length.
  • FIG. 1 shows a schematically simplified drawn longitudinal section of an embodiment of the device according to the invention
  • the illustrated in the drawing embodiment of the device according to the invention is intended for use in a so-called.
  • "Blow-out Preventer” BOP
  • BOP Blow-out Preventer
  • the cylinder arrangement forming the main part of the device, which as a whole is designated 1 in the drawing, can, for example, have a length of 4 m.
  • the cylinder assembly 1 is formed in the manner of a double piston accumulator, with a first cylinder part 3 and a second cylinder part 5, which are arranged coaxially with each other and connected to each other via a separating body 7, the first cylinder part 3 and second cylinder part 5 against each other.
  • a piston rod 9 Through the separating body 7 extends a piston rod 9, to which at one end a piston 1 1, which is displaceable in the first cylinder part 3, and a piston 13, which is displaceable in the second cylinder part 5, are fixed.
  • the piston rod 9 is guided under sealing by the separating body 7.
  • 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 assembly 1 defines four internal pressure chambers, namely, between the separator 7 and the piston 13 located in the second cylinder part 5, a first pressure chamber 19 which contains the pressure fluid intended to actuate the BOP.
  • a bias pressure chamber 23 and between the closure part 15 of the first cylinder part 3 and the associated piston 1 1 as the fourth pressure chamber a low pressure pressure chamber 25th
  • a pressure vessel 27 is arranged in the form of a cylindrical tubular body, which has the same length as the cylinder assembly 1, but a larger diameter, preferably twice
  • the pressure vessel 27 is end by Closures 29 and 31 closed.
  • the Druck investigatinger- space 27 is also connected via the end piece 35 with the biasing pressure chamber 23.
  • the device completes a corrosion-resistant pressure accumulator 37, in the embodiment in the form of a bladder or hydraulic accumulator, with an elongate plastic-coated storage housing 39 which extends along the pressure vessel 27, parallel thereto and adjacent thereto, with a length approximately the length of the adjacent one first cylinder part 3 corresponds.
  • the bladder or membrane 41 which is used as a separating element in the pressure accumulator 27 and made of a material insensitive to seawater, for example plastic or elastomer, separates the interior of the pressure accumulator 37 into an actuating chamber 43 and a seawater chamber 45, which has a non-return valve 47 which enables the water to enter is formed in the manner of a poppet valve, is in communication with the surrounding seawater.
  • the operating space 43 is connected via a pressure line 49 to an actuating input 51, which is connected via a channel in the separating body 7 of the cylinder assembly 1 with the first pressure chamber 21 in connection.
  • a low gas pressure preferably negative pressure
  • N2 gas filling
  • the first pressure chamber 21 is accordingly via the line 49 from the pressure accumulator 37 forth by the actuating fluid with an actuating pressure of 360 bar biased.
  • a biasing terminal 55 on the end piece 35 which connects the closure parts 17 and 31 on the cylinder part 5 and the pressure vessel 27, and lines 57 in the end piece 35 and holes 59 and 61 in the closure parts 31 and 1 7 are the Druckspei- rather 27 and thus the bias pressure chamber 23 of the cylinder assembly 1 is filled with a bias pressure (N2) gas.
  • N2 bias pressure
  • the seawater pressure in the second pressure chamber 21, for example, 360 bar (3600 m water depth) and a low pressure pressure chamber 25 prevailing negative pressure therefore stands for the sliding movement of the piston 1 1, 1 third in Figure 1 to the left a pressure level of substantially more than 600 bar available to provide the working pressure in the first pressure chamber 19 in the hydraulic fluid contained, which is thus also available at the working outlet 63 of the separating body 7. Due to the relatively large volume of the biasing gas, which is thanks to the supply volume in the pressure vessel 27 is available, the entire Kolbenhubweg can be supported by biasing pressure.
  • the function of the device according to the invention is not only particularly reliable, because thanks to the accumulator 37, the seawater is separated from the cylinder assembly 1, but the generation of the hydraulic working pressure is also thanks to the available in the pressure vessel 27 supply volume of the bias gas pressure particularly efficient.

Landscapes

  • 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)
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 true EP2668403A1 (fr) 2013-12-04
EP2668403B1 EP2668403B1 (fr) 2020-03-18

Family

ID=45509445

Family Applications (1)

Application Number Title Priority Date Filing Date
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)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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US4649704A (en) * 1984-12-24 1987-03-17 Shell Offshore Inc. Subsea power fluid accumulator
DE19617950A1 (de) * 1996-05-04 1997-11-13 Hydac Technology Gmbh Kolbenspeicher mit Gasvorspannung
US6202753B1 (en) * 1998-12-21 2001-03-20 Benton F. Baugh Subsea accumulator and method of operation of same
US6418970B1 (en) 2000-10-24 2002-07-16 Noble Drilling Corporation Accumulator apparatus, system and method
US7108006B2 (en) * 2001-08-24 2006-09-19 Vetco Gray Inc. Subsea actuator assemblies and methods for extending the water depth capabilities of subsea actuator assemblies
US6834680B2 (en) * 2002-12-09 2004-12-28 Benton F. Baugh Method of purging liquids from piston accumulators
US20050155658A1 (en) * 2004-01-20 2005-07-21 White Andrew J. Hermetically sealed pressure balanced accumulator
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US7934561B2 (en) * 2007-04-10 2011-05-03 Intermoor, Inc. Depth compensated subsea passive heave compensator
US8833465B2 (en) * 2008-08-04 2014-09-16 Cameron International Corporation Subsea differential-area accumulator
US8479774B2 (en) * 2011-07-22 2013-07-09 Benton Frederick Baugh Accumulator with single direction seal
US8726644B2 (en) * 2011-09-25 2014-05-20 Peter Nellessen Control of underwater actuators using ambient pressure

Also Published As

Publication number Publication date
US20130340421A1 (en) 2013-12-26
EP2668403B1 (fr) 2020-03-18
DE102011009276A1 (de) 2012-07-26
US9488198B2 (en) 2016-11-08
WO2012100915A1 (fr) 2012-08-02

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