EP0203008B1 - Vanne de sécurité à commande hydraulique, incorporable à un tube de production de puits pétrolier - Google Patents

Vanne de sécurité à commande hydraulique, incorporable à un tube de production de puits pétrolier Download PDF

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Publication number
EP0203008B1
EP0203008B1 EP19860401058 EP86401058A EP0203008B1 EP 0203008 B1 EP0203008 B1 EP 0203008B1 EP 19860401058 EP19860401058 EP 19860401058 EP 86401058 A EP86401058 A EP 86401058A EP 0203008 B1 EP0203008 B1 EP 0203008B1
Authority
EP
European Patent Office
Prior art keywords
valve
receiver
tubular piston
safety valve
annular joint
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.)
Expired
Application number
EP19860401058
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0203008A1 (fr
Inventor
Paul Maxime Helderle
Michel Raimond
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.)
Total Compagnie Francaise des Petroles SA
Original Assignee
Total Compagnie Francaise des Petroles SA
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 Total Compagnie Francaise des Petroles SA filed Critical Total Compagnie Francaise des Petroles SA
Publication of EP0203008A1 publication Critical patent/EP0203008A1/fr
Application granted granted Critical
Publication of EP0203008B1 publication Critical patent/EP0203008B1/fr
Expired 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
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • E21B34/105—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid
    • E21B34/106—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid the retrievable element being a secondary control fluid actuated valve landed into the bore of a first inoperative control fluid actuated valve
    • 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
    • E21B2200/05—Flapper valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1669—Tensile or sheer pin or bolt
    • Y10T137/1677—Pressure causes pin or bolt to destruct

Definitions

  • the present invention relates to safety valves hydraulically controlled and incorporated into production tubes in oil production wells. It relates more particularly to valves of the closing valve and piston tube type which, urged upwards by a return spring, can be moved, in the lower valve opening position, by hydraulic control.
  • a receptacle capable of receiving a safety valve in the body of the safety valve. recoverable auxiliary cable and an emergency sliding jacket for channeling the hydraulic valve control oil to this receptacle to control the auxiliary safety valve instead of the safety valve incorporated in the production tube, which has become faulty.
  • This auxiliary safety valve is equipped with an extension which, when the auxiliary safety valve is in the receptacle, keeps the valve in the open position.
  • the handling of the emergency jacket and then of the extension with the auxiliary safety valve constitutes a serious handicap.
  • the valve closes when the auxiliary safety valve is removed.
  • the object of the present invention is to propose a safety valve, of the closing valve type, incorporated in a production tube which, while being itself of a very reliable operation, can easily, in the event of failure, be transformed into a safety valve recoverable by cable.
  • Document US-A-3 799 258 describes a safety valve delimited by an elongated body of generally cylindrical shape, forming a longitudinal passage, the ends of which are provided so that this body can be inserted longitudinally between two successive elements of a tube production, provided in its lower part with a valve allowing the closing of the longitudinal passage in the upward direction and comprising a piston tube opening the valve which is mounted so as to be able to slide longitudinally while being urged towards a high position by a return spring and being able to be moved to a low position, to open the valve, by admitting hydraulic oil under pressure into an operating chamber of this piston tube and, above this piston tube, a tubular receptacle designed to receive internally, if necessary, an auxiliary safety valve recoverable by cable.
  • this receptacle is a longitudinally displaceable receptacle which, at its lower part, engages, telescopically and tightly, with the piston tube, said operating chamber being an annular chamber formed between said body on the one hand and the assembly of the piston tube and of said receptacle, on the other hand and extending from a lower annular seal carried by the piston tube and applied against said body to an upper annular seal carried by the receptacle and applied against said body, which, in normal operation of the safety valve, is held integral with said body by shearable screw elements and a closed through plug, arranged below said upper annular seal, which is provided externally with a locking segment thus that at least one auxiliary annular seal located below said plug and which, when closed and applied, in said passag e longitudinal, a pressure sufficient to shear the shearable elements, descends into said body in the emergency position by driving the piston tube in said low position while said upper annular seal and said auxiliary annular seal form a seal between said body
  • the piston tube and the receptacle isolate from the effluent all the active part acting on the piston tube in normal operation of the safety valve, which makes the operation of the latter very reliable. It is, moreover, very easy to transform the safety valve into a safety valve recoverable by cable, it suffices to move the receptacle downwards so that the valve remains permanently open and this receptacle can receive a conventional auxiliary safety valve, without extension, simply provided at its lower part with an adapter provided with chevron joints which are placed on either side of the opening formed in the receptacle by the removal of the plug, to ensure the hydraulic control connection of this auxiliary valve.
  • auxiliary annular seal is inactive during the normal operation of the safety valve, it is advantageous, so that it does not then undergo any mechanical stress to provide a groove in said body opposite the inactive position of this seal.
  • annular seal provided on the receptacle between said plug and said upper annular seal, is located, during normal operation of the safety valve, opposite another groove formed in said body and forms a seal. with said body when the receptacle is lowered into the emergency position.
  • a hydraulically operated safety valve is contained in a tubular valve body 1 formed of several successive parts and ending in an upper nipple 2 and a lower nipple 3 intended to be fixed respectively to one and to the other adjacent elements, not shown, on the production tube, the longitudinal passage 4 formed internally by the body ensuring the connection between the longitudinal passages of the production tube located on either side of the valve body 1.
  • a valve 5 for closing the valve is mounted on a valve holder 6 provided with an axis of articulation of the valve with valve return spring in the closed position and valve seat.
  • the valve holder 6 can be provided with other members which will be described later to fulfill various accessory functions.
  • the valve 5 can be opened by the descent of a piston tube 7, shown in FIG. 1 in the high position, in a low position shown in FIG. 2.
  • the piston tube 7, which can slide inside the valve body 1, is biased towards its high position by a return spring 8.
  • This return spring 8 is supported on the one hand at the end of a tubular part 9 secured to the body 1 and placed above the valve holder 6 and on the other hand at the end of the lower end of an upper portion 10 of the piston tube 7 fixed to a lower portion 11 of this piston tube.
  • This last portion 11 comes, in the low position of the piston tube, to keep the valve 5 in the open position and to protect the valve 5 from the flow of the effluent.
  • An emergency receptacle 12 provided internally for receiving an auxiliary safety valve recoverable by cable, is disposed in the valve body 1 above the piston tube 7 and can slide down into the body 1 if it is released from the 'shearable elements which keep it fixed to the body 1 in normal operation of the safety valve.
  • These shearable elements consist of a closed plug 13 passing through the wall of the receptacle 12 and at least one screw 14. The shear is obtained by applying sufficient pressure in the passage 4 if the emergency receptacle 12 is obstructed.
  • the lower part of the receptacle 12 enters telescopically into the upper portion 10 of the piston tube 7, an annular seal 15 ensuring a sealed lateral contact between the receptacle 12 and the piston tube 7.
  • An operating chamber 16 is formed between the valve body 1 on the one hand and the assembly of the piston tube 7 and of the receptacle 12, from a lower annular seal 17 carried by the piston tube 7 and applied against the body 1 up to to an upper annular seal 18 carried by the receptacle 12 and applied against the body 1.
  • This chamber contains the return spring 8.
  • the operating chamber 16 is supplied with hydraulic oil by an inlet 19 formed at the upper part of the body 1, in the upper nipple 2.
  • This nipple 2 is extended downwards by an internal cylindrical skirt 20 against which the upper annular seal 18 is applied while an external wall 21 provides an annular passage between it and the skirt 20 which allows a the hydraulic oil to pass into the operating chamber 16.
  • the hydraulic oil acts from top to bottom on the piston tube 7 according to differential surfaces because the diameter of the annular seal 15 is slightly less to the diameter of the lower annular seal 17.
  • An admission of pressurized hydraulic oil into the operating chamber 16 therefore acts against the return spring 8 and can bring the piston tube 7 into its low valve opening position.
  • Fig. 3 shows an auxiliary operating plug recoverable from the cable 22, the upper conventional part of which, for example with a ball valve, has been shown in elevation and which is provided at its lower part with an adapter 23 carrying chevron joints 24 and 25 which, applied against bearing surfaces of the receptacle 12 located on either side of the shearable plug 13, form between them a hydraulic oil intake chamber which is capable of receiving this hydraulic oil when the plug 13 has been sheared and ejected.
  • a basket 26 is provided in the adapter 23 to receive the plug 13 ejects.
  • Fig. 4 there is shown the auxiliary plug 22 lowered into the receptacle 12 before the latter is detached from the body 1.
  • a shoulder 27 of the operating plug 22 is then fixed in a stop profile 28 called "NO GO" of the receptacle 12.
  • the receptacle 12 is shown after shearing of the screws 14 and of the plug 13 and descent of this receptacle in the active position of the latter where it maintains the piston tube 7 in the low position for opening the valve 5.
  • the receptacle 12 is shown without the auxiliary valve or the operating plug 22.
  • the receptacle 12 is itself held in this active position by a locking segment 29 which engages in a groove 30 in the body 1.
  • auxiliary annular seal 31 provided on the receptacle 12 under the plug 13 and coming in the active position of this receptacle 12, on a surface 32 of the body 1, as seen in FIG. 5.
  • This seal 31 is located in the rest position of the receptacle 12, opposite a release groove 33 of the body 1.
  • the seal 31 is bathed in hydraulic oil and there is no mechanical stress.
  • the locking segment 29 is also bathed in hydraulic oil.
  • the seals 31 and 34 which ensure, in the active position of the receptacle the sealing on the part and other from the hole left, by the ejection of the plug 13, in the wall of the receptacle 12, undergo no stress during the rest of the receptacle 12 and are ready to play their role effectively in the event of failure of the flap valve 5.
  • the return spring 8 is well protected from the effluent and is not likely to be trapped in its housing, an excess of hydraulic oil pressure in the operating chamber tending, on the contrary, to spread the side walls delimiting the housing of the return spring.
  • the valve holder 6 is provided, in Figs. 1,2,5 5 and 6, of a lateral orifice 36 into which, depending on the uses, a pressure equalization valve 37 can be introduced on either side of the valve 5.
  • This valve 37 is closed when the piston tube 7, in the high position, has a recess 38 in front of the valve and it opens when the piston tube 7 descends and will reach the valve 5.
  • the lateral orifice 36 can also be blocked if this pressure equalization n is not necessary.
  • Fig.4 shows a valve holder 6 without side opening.
  • Fig. 8 shows a valve holder 6 which is provided with an additional annular seal 39 applying against the piston tube 7 while an inlet 40 for an additional hydraulic control line 41 is provided in the valve holder 6 above of this additional annular seal 39.
  • This hydraulic control line 41 makes it possible to compensate for the effect on the piston tube of the hydrostatic pressure in the operating chamber supplied by a main hydraulic control line 42 connected to the inlet 19 and to render the valve can be used at very great depths.
  • a jacket 43 has been installed below the valve 5, made elastic in its lower part 44 so as to fit into an internal groove 45 of the valve body 1 and provided at its upper part with a groove attachment 46 provided for hanging in an elastic lock 47, formed by dogs resiliently held by rods, carried by the valve holder 6, when the shirt 43 is released from the groove 45 and brought into line with the valve 5 open and the lock 47, as shown in FIG. 6.
  • This tool 48 operable with the cable, comprises a hooking head 49, a shoulder 50 intended to stop in the profile 28 of the body 1, a set of two half-shells 51, 52 separated by springs 53 and retained by screws 54, intended to hold the valve 5 in the open position, and two clamps 55, 56 articulated on a pivot axis 57, separated by a spring 58 and provided at their ends with a portion of a span of translation 59 and on the other hand of a feeler surface 60.
  • Fig. 8 shows the tool 48 installed in the valve and ready to mount the jacket 43.
  • the effusion 50 is retained at the bottom of the profile 28, the half-shells 51 and 52 are in line with the valve 5 opened by the piston tube 7 and the translation surfaces 59 are spaced apart under the jacket 43. The clearances are provided so that the jacket 43 can only be grasped by the tool 48.
  • Unlocking is carried out very simply by replenishing the valve with hydraulic oil.
  • the downward movement of the pston tube 7 retracts the latch 47 which releases the liner 43.
  • the latter is returned by the piston tube 7 to its low locking position.

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)
  • Fluid-Pressure Circuits (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Safety Valves (AREA)
EP19860401058 1985-05-21 1986-05-20 Vanne de sécurité à commande hydraulique, incorporable à un tube de production de puits pétrolier Expired EP0203008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8507591A FR2582374B1 (fr) 1985-05-21 1985-05-21 Vanne de securite a commande hydraulique, incorporable a un tube de production de puits petrolier
FR8507591 1985-05-21

Publications (2)

Publication Number Publication Date
EP0203008A1 EP0203008A1 (fr) 1986-11-26
EP0203008B1 true EP0203008B1 (fr) 1988-11-23

Family

ID=9319417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860401058 Expired EP0203008B1 (fr) 1985-05-21 1986-05-20 Vanne de sécurité à commande hydraulique, incorporable à un tube de production de puits pétrolier

Country Status (7)

Country Link
US (1) US4651827A (no)
EP (1) EP0203008B1 (no)
JP (1) JPS61266880A (no)
DE (1) DE3661279D1 (no)
FR (1) FR2582374B1 (no)
GB (1) GB2175333B (no)
NO (1) NO861997L (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323718A1 (de) * 2003-05-24 2004-12-23 Daimlerchrysler Ag Verfahren zum Herstellen einer Nockenwelle

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186305B (en) * 1986-02-10 1990-05-02 Otis Eng Co Surface-controlled subsurface safety valve
US5240071A (en) * 1991-04-30 1993-08-31 Shaw Jr C Raymond Improved valve assembly apparatus using travelling isolation pipe
US5137088A (en) * 1991-04-30 1992-08-11 Completion Services, Inc. Travelling disc valve apparatus
US5205361A (en) * 1991-04-30 1993-04-27 Completion Services, Inc. Up and down travelling disc valve assembly apparatus
US6102126A (en) * 1998-06-03 2000-08-15 Schlumberger Technology Corporation Pressure-actuated circulation valve
US7178599B2 (en) * 2003-02-12 2007-02-20 Weatherford/Lamb, Inc. Subsurface safety valve
US7510010B2 (en) * 2006-01-10 2009-03-31 Halliburton Energy Services, Inc. System and method for cementing through a safety valve

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762471A (en) * 1971-04-06 1973-10-02 Hydril Co Subsurface well apparatus and method
US3799258A (en) * 1971-11-19 1974-03-26 Camco Inc Subsurface well safety valve
US3763932A (en) * 1971-12-27 1973-10-09 Brown Oil Tools Surface operated, subsurface safety valve assembly
US4550780A (en) * 1972-05-23 1985-11-05 Hydril Company Pressure operated safety valve with lock means
US3786865A (en) * 1973-03-06 1974-01-22 Camco Inc Lockout for well safety valve
US4273186A (en) * 1978-11-13 1981-06-16 Otis Engineering Corporation Well safety valve system
US4294315A (en) * 1978-11-13 1981-10-13 Otis Engineering Corporation Landing nipple
US4475599A (en) * 1981-05-01 1984-10-09 Baker International Corporation Valve for subterranean wells
US4469179A (en) * 1981-12-17 1984-09-04 Otis Engineering Corporation Safety system
US4566478A (en) * 1982-04-27 1986-01-28 Otis Engineering Corporation Well safety and kill valve
US4605070A (en) * 1985-04-01 1986-08-12 Camco, Incorporated Redundant safety valve system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323718A1 (de) * 2003-05-24 2004-12-23 Daimlerchrysler Ag Verfahren zum Herstellen einer Nockenwelle
DE10323718B4 (de) * 2003-05-24 2005-04-14 Daimlerchrysler Ag Verfahren zum Herstellen einer Nockenwelle

Also Published As

Publication number Publication date
GB8611849D0 (en) 1986-06-25
GB2175333B (en) 1988-09-14
FR2582374B1 (fr) 1987-07-10
GB2175333A (en) 1986-11-26
EP0203008A1 (fr) 1986-11-26
NO861997L (no) 1986-11-24
JPS61266880A (ja) 1986-11-26
FR2582374A1 (fr) 1986-11-28
US4651827A (en) 1987-03-24
DE3661279D1 (en) 1988-12-29

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