EP0140938A1 - Etrangleur de production sous-marine et verin d'actionnement - Google Patents

Etrangleur de production sous-marine et verin d'actionnement

Info

Publication number
EP0140938A1
EP0140938A1 EP84901665A EP84901665A EP0140938A1 EP 0140938 A1 EP0140938 A1 EP 0140938A1 EP 84901665 A EP84901665 A EP 84901665A EP 84901665 A EP84901665 A EP 84901665A EP 0140938 A1 EP0140938 A1 EP 0140938A1
Authority
EP
European Patent Office
Prior art keywords
stem
actuator
chamber
assembly
bonnet
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.)
Withdrawn
Application number
EP84901665A
Other languages
German (de)
English (en)
Inventor
John D. Muchow
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.)
Hydril LLC
Original Assignee
Hydril LLC
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 Hydril LLC filed Critical Hydril LLC
Publication of EP0140938A1 publication Critical patent/EP0140938A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/025—Chokes or valves in wellheads and sub-sea wellheads for variably regulating fluid flow
    • 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/04—Valve arrangements for boreholes or wells in well heads in underwater well heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston

Definitions

  • This invention relates generally to control valves, and more particularly to chokes which serve to dissipate the energy of high pressure fluid, as for example fluid rising in a well.
  • Choke valves are commonly connected to the well head at the well surface to dissipate the energy of high pressure fluid, the latter commonly entrain ⁇ ing small particles loosened from the underground well formation. Such material can and does destructive- ly erode the choke valve due to exposure to the fluid flow when the valve is partly open, i.e. in fluid energy dissipating position.
  • a multiposition choke valve characterized as operable under water, as for example in off-shore well environments, and by high-reliability; low wear; simplicity as regards structure and opera ⁇ tion, and by ease of removal of valve parts subjected to wear, for repair.
  • an im ⁇ proved actuator mechanism to operate the valve, i.e. relatively move valve telescoping elements between open and closed positions, with high mechanical ad ⁇ vantage due to the extremely high fluid flow forces en ⁇ countered, i.e. resisting valve closure, and in view of the dissipation of flow energy at and within one or both valve elements (sleeve and nozzle elements, for example) .
  • the invention aims to provide an improved multiposition choke valve apparatus meeting
  • the apparatus of the invention in ⁇ cludes, in combination: a) a valve body defining an interior chamber and inlet and outlet fluid flow parts communicable with that chamber, b) a tubular carrier received in said chamber to be axially removable therefrom, c) a tubular nozzle retained in the carrier, d) a flow control sleeve axially movable in the carrier relative to the nozzle and in telescopic relation therewith to control fluid flow from the inlet flow port to said outlet port via said nozzle wherein fluid flow energy is dissipated, e) and means for so moving said flow control sleeve.
  • a further feature of the invention relates to providing for he removability of a bonnet and actuator mechanism from the valve body, and at the same time to enable removal of the afore-mentioned b) , c) and d) elements from the body interior and with the bonnet.
  • Fig. 1 is an elevation showing a production choke valve assembly connected with a well head in ⁇ stallation
  • Fig. 2 is an enlarged plan view taken in sec- tion on lines 2-2 of Fig. 1;
  • Fig. 3 is an elevation taken in section on lines 3-3 of Fig. 2; showing the valve in open position;
  • Fig. 4 is an enlarged section in plan view on lines 4-4 of Fig. 3;
  • Fig. 5 is an elevation on lines 5-5 of Fig.
  • Fig * 6 is a section in elevation on lines 6-6
  • Fig. 7 is an elevation in section on lines 7-7 of Fig. 3;
  • Fig. 8 is a section taken on lines 8-8 of Fig. 7;
  • Fig. 9 is a view like Fig. 3, and showing the valve in closed position
  • Fig. 10 is an enlarged view of a portion of Fig. 3.
  • a choke valve 10 is shown as sidewardly mounted at 11 to a well head 12, which may be located sub-surface, as proximate to the ocean floor.
  • the tubing is adapted to receive pressurized production fluid, as for example petroleum or gas typically containing sand, or other abrasive particles.
  • Arrow 14 designates rising pressurized flow passing from the tubing to the production choke valve.
  • theillustrated choke valve 10 is shown to include a valve body 15 and body cap or bonnet 16 interfitting the body at 17.
  • a removable C-clamp 18 retains the bonnet to the body, the clamp bridging the body and bonnet flanges 15a. and 16a.
  • a tubular carrier 19 is axially received in cylindrical chamber defined by counterbore 20 formed by the body, as shown. The lowermost or forwardmost extent 19a_ of the carrier is received in or pilots in body bore 21.
  • the uppermost or rearwardmost portion 19b of the carrier is removable attached, as by pins 22 to telescopically interfitting portion 16b of the bonnet, whereby the carrier may be axially removed from the body after release of the clamp 18 and upon axial retraction of the bonnet.
  • Chamber 20 includes an annular portion 20a. ex ⁇ tending annularly about an intermediate portion of car- rier 19 that has a number of ports 19£ through its wall. so the fluid received via body side inlet port 24 in body 15 is passed via ports 19c: into the annular in ⁇ terior space or sub-chamber 25 within the carrier. The latter is communicable via body outlet port 26 to a sump or other area.
  • a tubular (sliding seat) nozzle 27 is retained on the carrier to pass the flow from annular space 25 into the nozzle interior 28, for subsequent endwise flow to port 26.
  • That nozzle has an annular wall 27a projecting upwardly into space 25, wall 27a_ defining a number of flow passing side openings through the wall, there being a first group of such openings 28 spaced circumferentially about axis 29, and a second group of openings 30 spaced about axis 29 and axially offset from openings 28. These two groups are adapted to pass the flow in streams which are directed radially inwardly to impinge upon one another and dissipate flow energy, within the nozzle interior 28a_.
  • the nozzle is retained as by rings 31-34 to the internal flanged extent 19d ⁇ of the carrier.
  • An annular seal 35 is carried by the nozzle to protrude or extend for peripheral engagement by a control sleeve (stopper) 36, the non-metallic seal located below or beyond the openings 28 and 30 so as to be out of the direct flow path of the abrasive wall fluid, which typically con ⁇ tains abrasive cuttings particles, whereby seal life is enhanced.
  • the seal is also located up-stream of the orifice openings 28 and 30, in a low velocity flow area or zone.
  • the nozzle may consist of wear resistant ma ⁇ terial, such as tungsten carbide.
  • the flow control sleeve 36 is located for axial movement within space 25 in the carrier, and rela ⁇ tive to the nozzle, to control well fluid flow from the port 24 to port 26 via the nozzle.
  • the sleeve 36 which may also consist of tungsten carbide, is movable- telescopically relative to the nozzle, and preferably slidably at the outer side of the latter between re ⁇ tracted or fully open position (as seen in Figs. 3 and 7, and fully advanced or closed position as seen in Fig. 9 and as indicated by broken lines 36 • in Fig. 7).
  • a rearward stop 200 limits sleeve retraction, the stop provided by an annular part 201 in the carrier.
  • a partially advanced position of the sleeve '36 is shown at 36", wherein row of openings 30 remains partly open.
  • the sleeve pressurally engages the seal 35 in fully advanced position 36', to close off flow through the nozzle.
  • openings 28 and 30 are sufficiently close to the lowermost extent 25a. of space 25 to cause the flow to create turbulence in that zone 25a_ to flush sand, and other particles therefrom, but at the same time not to cause such a direct flow impingement on the seal as would undesirably quickly wear it away.
  • Means is also provided to move or displace the sleeve 36 as described, such means typically in ⁇ cluding a stem 42 projecting beyond (i.e. rearwardly of) the carrier 19, together with threaded structure 43 for effecting endwise advancement and retraction of the stem in response to stem rotation.
  • the stem is attached to the sleeve 36 as via structure 202 associated with reduced diameter cylinder203 slidably guided at 204 in part 201.
  • the stem is guided in tubu ⁇ lar part 206 carrying lubricated gland 202a.
  • Actuator mechanism is shown at 44 as having operative connection with the stem 42 to so rotate the stem.
  • Such actuator mechanism is shown to include two fluid pressure op- erated linear actuators 50 and 51, together with a linear- to-rotary motion converter 52 operatively coupled between the actuator or actuators, and the stem, to rotate the latter (see Figs. 2 and 4) .
  • a tension spring or springs 55 connected between terminal 56a of shaft extension 56, and a fixed transverse frame 67.
  • fluid pressure may be admitted to the actuator cylinder 50c_.as via piping 68 from an accumulator 69 to aid the return motion.
  • Underwater sea pressure may be admitted via pipe 71 to one side of a bladder 70 in the accumulator, whereby that pressure is transmitted to the working fluid at the opposite side of the bladder, for aiding the return stroking.
  • Numeral 73 in Fig. 2 designates a source of pressurized fluid, and valving, to control application of that pressure via piping 75 to the cylinder 5 ⁇ £ to drive the piston and shaft in direction 54.
  • the accumulator 69 is supported at 69a, within the housing 91.
  • the linear-to-rotary motion converter 52 may include means to rotate the. shaft in the opposite rotary direction.
  • forward stroking of the piston 51a and shaft 51b of actuator 51 in direction 74 causes operation of a cor ⁇ responding pawl, plunger and spring mechanism associated with a flange 78a_ on an associated collar 78, so that collar 78 and a like reversely directed ratchet wheel become coupled together and are rotated clockwise (in Fig. 4).
  • the stem extension 42a is rotated clockwise.
  • These elements form a second unit of the converter 52. See also stop bolts 110 and 111 limiting return rotation of collars 58 and 78.
  • a tension spring or springs 81 connected between terminal 82b of a shaft extension 82, and fixed frame 67.
  • fluid pressure may be ad ⁇ mitted to cylinder 5l£ as via piping 68 from the ac- cumulator 69, to aid the retraction.
  • Numeral 84 in Fig. 2 designates a source of pressurized fluid, and valving, to control application of that pressure via piping 85 to the cylinder 5l£, to drive the piston and shaft in direction 74.
  • threading 86 for moving the valve control sleeve 36 axially in a closing direction; and as the stem 42 is rotated in the opposite direction, the thread- ing 86 causes the sleeve 36 is moved axially oppositely.
  • threading 86 includes external threads 86a_ on the stem 42, and internal threads 86b on annuli 87 and 88. The latter may be carried in a counterbore 89 in cap or bonnet 16. Also provided is means to maintain the fluid pressure within the interior 90 of the enclosing housing
  • OMF ⁇ 91 at the same or approximately the same pressure as that of the surrounding environment, such as sub ⁇ surface sea pressure.
  • an accumulator 92 is supported at 92a, and has an inlet 93 exposed to outside or underwater pressure. That pressure is transmitted via pipe 94 to a bladder 95 within the accumulator, for transfer to hyperbaric pressure at the opposite side of the bladder. That side of the accumulator communicates via outlet 96 with the housing interior 90. Accordingly, pressure equal ⁇ ization between the exterior and interior is achieved. Oil (as for example water soluble oil) may fill in ⁇ terior 90. Housing 91 attaches at 97 to the bonnet 16.
  • means is provided to sense the axial position of the stem 42 and stem extension 42a_, whereby the positioning of the sleeve 36 relative to nozzle 27 is determinable.
  • Such means is shown to include a plunger 98 having an end surface or nose 98a. yieldably urged (as by spring 101) against tapered surface 100 on the stem 42 (or 42ci) , whereby the plung ⁇ er is variably displaced in accordance with stem axial advancement or retraction.
  • Auxiliary means senses plunger variable displacement for producing an output signal corresponding thereto. See for example the housing 102 containing a magnetic sensor 103 (including coil 104 within which the plunger 105 is movable to provide variable impedance to AC) .
  • the potentiometer output signal at 106 is transmitted via cable 107 to output junction 108, for transmission to an indicator, shown schematically at 109 in Fig. 3.
  • Fig. 10 means is shown as- sociated with the stem further extension 42a' to be manually turned for rotating the stem in override mode. and independently of operation of the actuator mech ⁇ anism 44. The latter is typically in rest position during such manual operation.
  • Such means may take the form of a polygonal head 120 integral with the stem extension 42a_',,- and adapted to be wrench or tool gripped for rotating the stem.
  • Numeral 121 indicates such a tool or wrench.
  • FIG. 10 Also illustrated in Fig. 10 are indicia (see marks 122 on a sleeve 123 connected to the stem extension 42a_') associated with the stem 42 to be ro ⁇ tated therewith and relative to a non-rotatable marker 124 (on a fixed plate 125) .
  • This provides visual indication of axial positions of the stem and valve sleeve 36 (relative to openings 28 and 30) upon completed incremental strokings of the actuator mechanism.
  • sleeve 123 may be rotated through an angle ⁇ to advance helically spaced markers 122 into successive registra ⁇ tion with fixed marker 124.
  • Such markers 122 may be labeled or coded as indicated to correspond to axial positions of sleeve 36, the precise closing positions of the sleeve 36 may be ascertained, visually.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)

Abstract

Un montage de vanne et d'étrangleur à positions multiples comporte: a) un corps de vanne (15) délimitant une chambre intérieure (20) et des orifices d'écoulement de fluide d'admission (24) et d'évacuation (26) pouvant communiquer avec cette chambre, b) un support tubulaire (19) reçu dans la chambre de manière à pouvoir en être retiré axialement, c) une buse tubulaire (27) fixée dans le support, d) un manchon de régulation de l'écoulement (36) déplaçable axialement dans le support par rapport à la buse et placé de manière téléscopique par rapport à celle-ci afin de permettre la régulation de l'écoulement de fluide provenant de l'orifice d'écoulement d'admission allant jusqu'à l'orifice d'évacuation en passant par la buse où l'énergie d'écoulement du fluide est dissipée, e) ainsi qu'un mécanisme pour déplacer le manchon de régulation d'écoulement. Le mécanisme auquel il est fait référence peut comporter un vérin allant d'une position linéaire à une position rotative.
EP84901665A 1983-04-04 1984-04-02 Etrangleur de production sous-marine et verin d'actionnement Withdrawn EP0140938A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48162283A 1983-04-04 1983-04-04
US481622 1983-04-04

Publications (1)

Publication Number Publication Date
EP0140938A1 true EP0140938A1 (fr) 1985-05-15

Family

ID=23912707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84901665A Withdrawn EP0140938A1 (fr) 1983-04-04 1984-04-02 Etrangleur de production sous-marine et verin d'actionnement

Country Status (3)

Country Link
EP (1) EP0140938A1 (fr)
NO (1) NO844817L (fr)
WO (1) WO1984003922A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1233979B (it) * 1989-03-08 1992-04-22 Biffi Spa Attuatore per valvole sottomarine
US6302128B1 (en) 1997-02-21 2001-10-16 Hydril Company Bi-directional rotary output actuator
CA2552170C (fr) 2005-07-19 2010-08-17 Master Flo Valve Inc. Garniture d'ecoulement inverse pour duse
US20170314374A1 (en) * 2016-04-27 2017-11-02 Cynthia Ann Lundberg Variable aperture flow control mechanism for gas lift valves

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1992732A (en) * 1933-12-12 1935-02-26 Barrett Arthur Valve
US2841119A (en) * 1949-12-12 1958-07-01 Segerstad Carl Gustaf Hard Af Operating mechanism
US3330294A (en) * 1964-11-23 1967-07-11 Manning Oscar Replacement valve
CA1101823A (fr) * 1978-06-05 1981-05-26 Eugene O. Lee Traduction non-disponible
US4540022A (en) * 1982-06-01 1985-09-10 Harry R. Cove Choke for drilling or production use

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8403922A1 *

Also Published As

Publication number Publication date
WO1984003922A1 (fr) 1984-10-11
NO844817L (no) 1984-12-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

17P Request for examination filed

Effective date: 19850328

17Q First examination report despatched

Effective date: 19860627

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19861031

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MUCHOW, JOHN, D.