EP0055183A1 - Dispositif de siège de vanne réagissant à la pression - Google Patents

Dispositif de siège de vanne réagissant à la pression Download PDF

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Publication number
EP0055183A1
EP0055183A1 EP81402038A EP81402038A EP0055183A1 EP 0055183 A1 EP0055183 A1 EP 0055183A1 EP 81402038 A EP81402038 A EP 81402038A EP 81402038 A EP81402038 A EP 81402038A EP 0055183 A1 EP0055183 A1 EP 0055183A1
Authority
EP
European Patent Office
Prior art keywords
valve
seal
diameter
pressure
housing
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Withdrawn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
EP81402038A
Other languages
German (de)
English (en)
Inventor
Howard L. Mcgill
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.)
Schlumberger Technology Corp
Original Assignee
Schlumberger Technology Corp
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 Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Publication of EP0055183A1 publication Critical patent/EP0055183A1/fr
Withdrawn legal-status Critical Current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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/04—Ball valves

Definitions

  • This invention relates generally to full-bore ball valves that are used, for,example, to control the flow of well fluids during a drill stem test, and particularly to a new and improved ball valve seat and seal assembly of the type described that is constructed and arranged such that when the valve is closed it will hold a predominant fluid pressure acting from either above or below the ball element.
  • a drill stem test of an earth formation that has been intersected by a well bore may be considered as a temporary completion of the well.
  • a packer and a test valve are run into the well on a pipe string and the packer is set to isolate the interval to be tested from the hydrostatic head of the well fluids thereabove.
  • the test valve then is opened and closed to alternately flow and shut in the well; while a pressure recorder is used to record pressure data as a function of time. From the pressure record various highly useful parameters such as permeablity and initial reservoir pressure can be determined.
  • test valve it is fairly typical for the test valve to include a ball-type closure element to control formation fluid flow.
  • a ball valve has the advantage as opposed to other types of closure elements such as a sliding sleeve valve or the like, of providing when open an unobstructed vertical passage through the test tool to enable high flow rates of formation fluids as well as the capability for conducting other well services such as pressure surveys and perforating without withdrawing the equipment from the well.
  • the valve must hold the greater pressure from below as the test tools are run into the well in order to maintain the pipe string initially as a low pressure region into which the well fluids can produce when the valve is opened.
  • the valve also should have the capability for holding a greater pressure from above to enable pressure testing of the pipe string as it is being assembled at the surface and lowered into the well.
  • a greater pressure from above also will be imposed when a fluid recovery in the pipe string is being reverse circulated therefrom during the final shut-in period. Of course, the leakage of such pressure will disturb or spoil the shut-in pressure measurements that are being recorded.
  • a predominant pressure may be applied to the test valve from above when using a tubing pressure operated reverse circulating valve of the type disclosed and claimed in Upchurch application Serial No. 253,786, assigned to the assignee of the present invention.
  • a ball valve closure has not been as effective as other types of closures in holding pressure from both directions because it is designed to close upwardly against a valve seat that surrounds the flow passage. Although pressure from below may tend to force the valve element against the seat and thus tighten the closure against leakage, it will be realized that pressure form above may have the opposite effect and tend to cause the ball element to leak.
  • valve apparatus adapted for use in a well bore, comprising: tubular housing means defining a flow passage; valve means rotatable about an axis that is transverse to said flow passage between open and closed positions; seat means surrounding said flow passage and having a seat surface and seal means coacting with said valve means in said closed position to block fluid flow through said flow passage; and pressure responsive means for forcing said seat surface against said valve means in response to a predominate pressure either upstream or downstream of said valve means.
  • an apparatus in which the present invention may be embodied includes inner and outer tubular housings 9 and 10 which together constitute a valve body 11 having a flow passage 12 extending longitudinally therethrough.
  • a seat assembly indicated generally at 13 is mounted within the body 11 and surrounds the flow passage 12 for cooperation with a ball valve element 14.
  • the ball element 14 has a bore 15 extending therethrough and is mounted for rotation about an axis that is transverse to the flow passage 12 between a closed position where the bore is disposed at right angles to the flow passage and an open position where the bore of the ball is aligned with the flow passage.
  • the ball element 14 can be mounted for rotation on suitable means such as trunions 16 that extend for opposite side walls 17 of the ball into circular recesses 18 that are formed in the walls of the body 11.
  • the ball element 14 can be rotated between its open and closed positions by any suitable means such as an actuator sleeve 20 which can rotate about the longitudinal axis of the body and which carries a ring 21 that is appropriately fixed to its upper end.
  • the ring 21 has an inclined pin 22 that projects inwardly toward the center of the ball element 14.
  • the pin 22 can have a roller 23 mounted thereon which engages within a rectangular slot 24 extending circumferentially of the ball in the outer periphery thereof.
  • the ball element can be rotated to the open position in response to the rotation of the sleeve 20 in one direction and to the closed position by rotation of the sleeve in the opposite direction.
  • this particular means for rotating the ball is only one of a number of different structures that might be used and is described herein for purposes of illustration and not in a limitive sense.
  • the seat assembly 13 includes a retainer ring 25 that is provided with a spherical annular lower surface 26 which engages the outer periphery of the ball 14.
  • a composite seal assembly 30 that engages the the outer peripheral wall of ball valve 14 may be located in a groove 31 that opens through the lower surface 26.
  • the seal assembly 30 may be any suitable elastomer device for preventing fluid leakage when the valve is in the closed position, but preferably is constructed as disclosed and claimed in Meek application Serial No. 214,473, assigned to the assignee of the present invention.
  • the retainer ring 25 is biased toward the ball element 14 by helical coil spring 32 that reacts between an upper end surface of the retainer ring 25 and a downwardly facing shoulder 34 on the housing 9.
  • the retainer ring 25 has a reduced diameter upper portion 35 that provides an annular seal surface 36 whose diameter is denoted as A.
  • the parts are sized and arranged such that the diameter A is smaller than the diameter of sealing engagement of the seal assembly 30 against the ball element 14, which is denoted as B.
  • a piston ring 38 that is mounted between the upper portion 35 and the housing 11 is movable relatively along the housing between an upper position where the upper end of the ring 38 abuts a downwardly facing shoulder 39-on the housing, and a lower position where the lower end surface 40 thereof abuts against an upwardly facing shoulder 41 on the retainer ring 25.
  • a seal 42 engages the upper portion of the retainer ring 25 on the diameter A, whereas another seal 43 engages the inner wall surface 44 of the housing 9 on having a seal diameter denoted as C.
  • the seal diameter C is greater than the diameter B.
  • the parts are assembled as shown in the drawings with the lower surface 26 of the retainer ring 13 and the composite seal assembly 30 engaging the outer surface of the ball element 14.
  • the ball valve assembly as disclosed herein is to be used, for example, in a drill stem testing operation
  • the ball initially is in the closed position as the tools are being run into the well to test depth.
  • the region of the flow passage 12 located above the ball element 14 is at atmospheric or other low pressure with respect to the region below the ball element, which normally will contain well fluids at hydrostatic pressure.
  • the relatively high fluid pressure upstream or below the ball valve 14 will act via the annular clearance space 45 between the retainer ring 25 and the housing wall 39 on the lower face of the piston ring 38 and on the upwardly facing shoulder 41 of the retainer ring.
  • the pressure causes the piston 25 to shift upwardly into engagement with the housing shoulder 39 to thereby transfer upward force cue to such pressure to the housing 11.
  • the pressure also acts downwardly on the shoulder 41 over a transverse cross-sectional area that is defined by the difference in diameters of sealing engagement A and B as downward force on the retainer ring 25 to hold the same tightly seated against the outer periphery of the ball valve element 14. The downward force is aided by the bias force of the spring 32.
  • the pressure responsive valve seat assembly of the present invention is uniquely arranged to coact with the ball valve element 14 to prevent fluid leakage therepast, irregardless of whether the predominant fluid pressure is acting on the ball element from below or above.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Safety Valves (AREA)
  • Taps Or Cocks (AREA)
  • Check Valves (AREA)
EP81402038A 1980-12-23 1981-12-21 Dispositif de siège de vanne réagissant à la pression Withdrawn EP0055183A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22024180A 1980-12-23 1980-12-23
US220241 1980-12-23

Publications (1)

Publication Number Publication Date
EP0055183A1 true EP0055183A1 (fr) 1982-06-30

Family

ID=22822705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81402038A Withdrawn EP0055183A1 (fr) 1980-12-23 1981-12-21 Dispositif de siège de vanne réagissant à la pression

Country Status (4)

Country Link
EP (1) EP0055183A1 (fr)
AU (1) AU7878181A (fr)
BR (1) BR8108355A (fr)
ES (1) ES508245A0 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174857A2 (fr) * 1984-09-12 1986-03-19 Halliburton Company Outil de puits avec structure de support de vanne
WO1997048880A2 (fr) * 1996-06-17 1997-12-24 Petroline Wellsystems Limited Appareil de fond
AU761991B2 (en) * 1996-06-17 2003-06-12 Weatherford/Lamb Inc. Downhole apparatus
CN110905456A (zh) * 2018-09-18 2020-03-24 中国石油天然气股份有限公司 加压延时投球装置
CN111425165A (zh) * 2020-04-29 2020-07-17 中国石油大学(华东) 煤层气保压取心的圆弧闭合球阀密封装置
WO2021054939A1 (fr) * 2019-09-17 2021-03-25 Halliburton Energy Services, Inc. Agencement de suralimentation à double effet
CN115234229A (zh) * 2022-07-29 2022-10-25 山东省煤田地质局第一勘探队 一种应用于地热井抽水试验的定点取样装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741249A (en) * 1971-03-22 1973-06-26 Baker Oil Tools Inc Ball valve with resilient seal
GB1400057A (en) * 1971-12-15 1975-07-16 Acf Ind Inc Fluid flow control valve having fluid pressure actuated sealing members
US4137936A (en) * 1977-05-21 1979-02-06 Taimei Kinzoku Kogyo Kabushiki Kaisha Ball valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741249A (en) * 1971-03-22 1973-06-26 Baker Oil Tools Inc Ball valve with resilient seal
GB1400057A (en) * 1971-12-15 1975-07-16 Acf Ind Inc Fluid flow control valve having fluid pressure actuated sealing members
US4137936A (en) * 1977-05-21 1979-02-06 Taimei Kinzoku Kogyo Kabushiki Kaisha Ball valve

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174857A2 (fr) * 1984-09-12 1986-03-19 Halliburton Company Outil de puits avec structure de support de vanne
EP0174857A3 (en) * 1984-09-12 1988-06-22 Halliburton Company Well tool with improved valve support structure
AU761991B2 (en) * 1996-06-17 2003-06-12 Weatherford/Lamb Inc. Downhole apparatus
WO1997048880A3 (fr) * 1996-06-17 1998-04-09 Petroline Wellsystems Ltd Appareil de fond
GB2331115A (en) * 1996-06-17 1999-05-12 Petroline Wellsystems Ltd Downhole apparatus
GB2331115B (en) * 1996-06-17 2001-01-10 Petroline Wellsystems Ltd Downhole apparatus
US6223824B1 (en) 1996-06-17 2001-05-01 Weatherford/Lamb, Inc. Downhole apparatus
AU734369B2 (en) * 1996-06-17 2001-06-14 Weatherford/Lamb Inc. Downhole apparatus
WO1997048880A2 (fr) * 1996-06-17 1997-12-24 Petroline Wellsystems Limited Appareil de fond
CN110905456A (zh) * 2018-09-18 2020-03-24 中国石油天然气股份有限公司 加压延时投球装置
WO2021054939A1 (fr) * 2019-09-17 2021-03-25 Halliburton Energy Services, Inc. Agencement de suralimentation à double effet
GB2601254A (en) * 2019-09-17 2022-05-25 Halliburton Energy Services Inc Double acting boost arrangement
US11448326B2 (en) 2019-09-17 2022-09-20 Halliburton Energy Services, Inc. Double acting boost arrangement
GB2601254B (en) * 2019-09-17 2023-06-14 Halliburton Energy Services Inc Double acting boost arrangement
CN111425165A (zh) * 2020-04-29 2020-07-17 中国石油大学(华东) 煤层气保压取心的圆弧闭合球阀密封装置
CN115234229A (zh) * 2022-07-29 2022-10-25 山东省煤田地质局第一勘探队 一种应用于地热井抽水试验的定点取样装置

Also Published As

Publication number Publication date
ES8300925A1 (es) 1982-11-01
ES508245A0 (es) 1982-11-01
BR8108355A (pt) 1982-10-13
AU7878181A (en) 1982-07-01

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT NL

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: 19830606

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MCGILL, HOWARD L.