EP1920133B1 - Safety device for an oil well and associated safety installation - Google Patents
Safety device for an oil well and associated safety installation Download PDFInfo
- Publication number
- EP1920133B1 EP1920133B1 EP06808057A EP06808057A EP1920133B1 EP 1920133 B1 EP1920133 B1 EP 1920133B1 EP 06808057 A EP06808057 A EP 06808057A EP 06808057 A EP06808057 A EP 06808057A EP 1920133 B1 EP1920133 B1 EP 1920133B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- housing
- conduit
- pressurising
- hydraulic
- 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 - Fee Related
Links
- 238000009434 installation Methods 0.000 title claims abstract description 8
- 239000003129 oil well Substances 0.000 title abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 5
- 241000282472 Canis lupus familiaris Species 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B34/16—Control means therefor being outside the borehole
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
-
- 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
- E21B2200/05—Flapper valves
Definitions
- Such a device is used to put together the document US 4,691,776 , in safety a well of production of oil or another fluid (notably gas, steam, water), in particular when this well is eruptive and can be brought to be closed quickly in the event of failure of the surface installation, this failure producing the cutoff of an opening control signal.
- oil or another fluid notably gas, steam, water
- US 4,002,202 a device of the aforementioned type, which is lowered into a casing of production of an oil well, by means of a working line to the cable.
- This device comprises a valve housing, a holding rod in the open position of the valve and electromagnetic coils actuating the holding rod.
- the coils are fixed outside the casing at a determined point of this casing, and are electrically connected to the surface by electric cables.
- the valve When an electrical control signal is received by the electromagnetic coils, the valve is held in the open position by the holding rod, against a return spring.
- Also known safety device of the same type controlled by a hydraulic control line extending outside the casing from the surface.
- the safety device must be positioned at a certain point in the well, opposite the actuating coils, and the coils must be connected to the surface by the power supply lines, or must be positioned facing the arrival of the hydraulic pipe.
- An object of the invention is therefore to provide an autonomous safety device, comprising a safety valve that can be installed and anchored at any point of the well regardless of the architecture of the completion equipping it, and can be ordered from the surface.
- the subject of the invention is a device according to claim 1.
- the device according to the invention may comprise one or more of the features which are the subject of claims 2 to 12.
- the invention also relates to a safety installation for a fluid operating well according to claim 13.
- proximal means relatively closer to the surface of the soil
- distal means relatively closer to the bottom of a well in the ground.
- the autonomous safety device 10 is intended to be lowered into an oil well 12 using means 14 for deployment to the cable.
- the device 10 is placed at a selected point of the well 12, for example located at a depth of between 10 m and 1000 m, replacing a defective safety valve, or to add an intermediate safety valve.
- the well 12 comprises a first conduit 16 called “casing” formed in the subsoil 18 and a second conduit or tube 20 called “production casing” set substantially in the center of the first duct 16.
- the well 12 further comprises a wellhead 22 at the surface for selectively closing off the first conduit 16 and the second conduit 20.
- the second conduit 20 is of shorter length than the first conduit 16. It opens at a point 23 of the first conduit 16 located in a distal portion of the well 12. Annular packing elements 24 are arranged between the first conduit 16 and the second leads to the vicinity of point 23.
- the second conduit 20 delimits internally a plurality of circular grooves or annular housing 26A, 26B hooking, designated by the term "landing nipple". These housings 26A, 26B are located at points spaced longitudinally along the conduit 20.
- the second duct 20 is devoid of housings 26A, 26B, and the device 10 is anchored directly against a smooth wall of duct 20.
- the deployment means 14 of the device 10 comprise a cable working line 30, a surface winch 32 for deployment or the retraction of line 30 into well 12, and line orientation pulleys 34 mounted on wellhead 22.
- the line 30 is for example formed by a single-strand smooth cable type "piano wire”, commonly referred to by the term “slickline”, with or without electrical insulation on its outer surface.
- the line 30 comprises, at its distal end, a laying train 31 of the device 10.
- the line 30 is a mechanically reinforced electrical cable, commonly referred to by the term “electric line”, or a helical hollow cable, commonly referred to as “coiled tubing”.
- the winch 32 and the pulleys 34 allow the deployment of the working line 30 successively in the second conduit 20, then in the first conduit 16 through the wellhead 22.
- the deployment means 14 have been removed and the well 12 comprises means 35 for transmitting a control signal of the safety device 10.
- the signal of control is an electromagnetic signal and the means 35 are arranged on the surface.
- this signal is an acoustic signal.
- the safety device 10 comprises a safety valve housing 40, means 42 for holding the safety valve in an open position, and a hydraulic cylinder 44 for actuating the holding means 42.
- the device 10 comprises also a hydraulic unit 46 removably attached to a distal end of the housing 40, the unit 46 comprising means 48 for controlling the cylinder 44, and batteries 49 for the power supply of the unit 46.
- the valve housing 40 comprises a tubular body 50 of longitudinal axis XX 'defining internally a longitudinal passage through 52 for circulation of a petroleum fluid, means 54 for connection to the laying train 31, mounted at a proximal end of the body 50, and means 56 for anchoring the device 10 in the second conduit 20.
- the housing 40 further comprises, in the vicinity of its distal end, a shutter valve 58 of the passage 52.
- the body 50 comprises, moving from a proximal end, right on the Figure 3 , towards a distal end to the left on the Figure 3 , a proximal tubular portion 60, a central portion 62 for guiding and supporting a valve, and a distal portion 64 for connection to the hydraulic unit 46.
- the median portion 62 defines a proximal sheath 66 mounted in the tubular portion 60 and delimiting a transverse annular surface 68 directed towards the body 60.
- the medial portion 62 also defines a distal annular shoulder 70 directed toward the distal portion 64 and a cylindrical guide surface 72 extending between the proximal surface 68 and the distal shoulder 70.
- the cylindrical surface 72 delimits, between the distal shoulder 70 and the proximal surface 68, an annular housing which receives a proximal seal 73.
- the distal tubular portion 64 defines a lateral opening 74 for retracting a valve, which opens into the passage 52, an annular shoulder 76 oriented towards the distal end of the body 40, and a lateral passage 78 for mounting the central unit.
- the portion 64 has at its distal end a distal opening which opens into the flow passage 52.
- the connecting means 54 comprise a receiving head 80 of the laying train 31 delimiting an internal housing 82.
- the head 80 is screwed to the proximal end of the tubular portion 60.
- the housing 82 opens out distally into the passage 52 and proximally through a proximal opening 84. Thus a fluid can enter the central passage 52 of the housing 40 when the laying train 31 is disposed away from the housing 82.
- the anchoring means 56 comprise locking mandrels 86 or "dogs" designated by the term “lock mandrel”.
- the dogs 86 protrude radially outside the head 80 and have a shape complementary to that of the latching housings 26A, 26B formed in the second conduit 20.
- the anchoring means 56 also comprise a compressible annular lining (not shown) for sealing between the wall of the duct 20 and the head 80.
- the shut-off valve 58 comprises an annular seat 88 mounted integral with the body 50 in the passage 52, and a valve 90 movable between an open position of the passage 52, and a closed position of the passage 52.
- the valve 58 comprises also a return spring 92 of the valve 90 to its closed position.
- the valve seat 88 is fixed in the passage 52 and provides a mechanical connection between the middle portion 62 and the distal tubular portion 64. As illustrated by FIG. Figure 3A , a proximal annular surface 93 of the seat extends facing the distal surface 70 of the medial portion 62. A distal conical annular surface 94 of the seat 88 is flush with the wall of the distal portion 64 at the side opening 74 of reception.
- the valve 90 is rotatable about a horizontal axis perpendicular to the axis X-X 'situated in the vicinity of the distal surface 94 of the seat 88.
- valve 90 In the open position of the valve 90, the valve 90 extends substantially in the extension of the tubular portion 64 to seal the lateral opening 74 and release the passage 52.
- valve 90 In the closed position, shown on the Figure 6 , the valve 90 extends in a plane substantially perpendicular to the longitudinal axis XX 'of the valve housing 40. It rests on the distal conical annular surface 94 to close the passage 52.
- the spring 92 continuously urges the valve 90 to its closed position.
- the means 42 for holding the valve in its open position comprise a cylindrical sleeve 98 mounted to be movable in translation along the axis XX 'in the passageway 52, between a resting proximal position and a distal opening position of the valve 58.
- the means 42 further comprises, mounted on the sleeve 98, a distal piston 100 of pressurization, a proximal stop 102 for guiding the sleeve, and a coil spring 104 for returning the sleeve towards its proximal position.
- the sleeve 98 extends longitudinally in the body 40 facing the proximal tubular portion 60, the medial portion 62 and, in its proximal position, the distal portion 64. As illustrated by FIG. Figure 4 it comprises an outer surface 106 of cross section substantially complementary to the guide surface 72 of the middle part 62, so that the middle portion 62 guides the sleeve 98 during its displacement between its proximal position and its distal position.
- the surface 106 defines with the seat 88, an annular space 107. It comprises an annular rib 107B which delimits a distal housing oriented towards the seat 88. The housing receives a seal 108 which distally closes the annular space 107. The space 107 is closed proximally by the proximal seal 73.
- the distal annular piston 100 is slidably mounted on the sleeve 98 between the outer surface 106 and the proximal tubular portion 60. It delimits a distal annular surface 110 which extends opposite the proximal surface 68. It also delimits an annular surface. proximal 112 on which rests a distal end of the spring 104.
- the proximal annular abutment 102 is mounted integral with the proximal end of the sleeve 98. It extends between the sleeve 98 and the tubular portion 60.
- the abutment 102 slides in the tubular portion 60 and delimits a distal annular surface 114 on which 'bears against the proximal end of the spring 104.
- the stop 102 comprises a scraper seal 115 placed in abutment on the tubular part 60.
- the seal 108 extends near the proximal surface 93 of the seat 88. Furthermore, the stop 102 is located in the vicinity of the receiving head 80. The distance between the piston 100 and the stop 102 is then maximum.
- the spring 104 is prestressed, so that it exerts a minimum restoring force on the piston 100 and on the stop 102. In this position, the annular rib 107B of the sleeve 98 abuts against the shoulder 70.
- the distal edge of the sleeve 98 is disposed facing the seat 88, proximally relative to the valve 90.
- a distal portion of the sleeve 98 extends opposite the lateral opening 74.
- the distal edge of the sleeve 98 rests on the abutment shoulder 76 of the distal portion 64.
- the sleeve 98 covers the valve 90.
- the seal 108 is distally distal from the proximal surface 93 of the valve seat 88.
- the hydraulic cylinder 44 comprises a pressurizing chamber 120 and a reserve and discharge tank 122 which are hydraulically connected to the central unit 46 by respective connecting lines 124A, 124B.
- the cover 122 and the chamber 120 contain a hydraulic control fluid of the jack 44.
- the chamber 120 comprises an intermediate space 121 of constant volume and the annular space 107 of variable volume.
- the intermediate space 121 extends between the body 50 and the sleeve 98. It is delimited proximally by the distal shoulder 70 of the medial portion 62, by the proximal surface 93 of the seat 88, and by the outer surface 106 of the sleeve. .
- the space 121 is connected to the annular space 107.
- the distance between the proximal seal 73 and the distal seal 108 is minimal and the volume of the chamber 120 is minimal. In the distal position of the sleeve 98, this distance is maximum and the volume of the chamber 120 is maximum.
- the sheet 122 extends between the body 50 and the sleeve 98 proximally relative to the chamber 120. It is delimited by the proximal tubular portion 60, the proximal surface 68 of the medial portion 62, the surface 106, and by the distal surface 110 of the piston 100.
- the volume of the cover 122 depends on the longitudinal position of the piston 100 along the sleeve 98 and the body 50.
- the lines 124A, 124B extend outside the body 50 along this body. They open out distally at the lateral passage 78 for mounting the central unit 46. Furthermore, the distal connection conduit 124A opens proximally into the intermediate space 121 of the chamber 120 through the medial portion 62. The proximal connection conduit 124B opens proximally into the sheet 122 through the middle portion 62.
- the central unit 46 comprises a tubular housing 125 receiving a hydraulic electro-pump 126 and a pipe 128 for selectively pressurizing the chamber 120, connecting the electropump 126 to the distal connection pipe 124A.
- the tubular housing 125 protrudes distally outside the body 50 along the X-X 'axis. Its proximal end is inserted into the distal opening of the distal portion 64 and received in the mounting passage 78 for attachment to the distal portion 64 of the body 50.
- the electropump 126 connects the proximal connection line 124B to an inlet of the line 128, to connect the cover 122 to the line 128.
- the pressurizing line 128 comprises, from upstream to downstream, from the electropump 126 to the chamber 120, a zero leakage check valve 130, and an upstream portion 128A on which a safety line is punctured. 132 and a first discharge line 134 received in the housing 125.
- the conduit 128 further comprises a downstream portion 128B on which a rapid discharge conduit 136 and an accumulator 138, received in the tubular housing 125, are stitched.
- the safety line 132 is stitched on the upstream portion of the pressure line 128 at the outlet of the valve 130. It opens at the inlet of the proximal connection pipe 124B.
- the safety pipe 132 is provided, from upstream to downstream, with a pressure switch 140 and a pressure relief valve 142.
- the first discharge pipe 134 is stitched on the upstream portion 128A of the pipe 128 downstream of the pipe 132.
- the pipe 134 is provided with a normally open, controlled, safety valve 144, which opens into the proximal connection pipe 124B .
- the solenoid valve 144 is electrically connected to the control means 48.
- the fast discharge line 136 is stitched on the pressure line 128 via a bypass valve 146 defining the upstream portion 128A and the downstream portion 128B on the line 128.
- the valve 146 comprises a primary inlet 148 and a primary outlet 150 opening respectively in the upstream portion 128A of the pressurizing pipe 128 to the electropump 126, and in the downstream portion 128B of the pipe 128 to the chamber 120
- the valve 146 further comprises a secondary outlet 152 connected to the rapid discharge line 136.
- the minimum flow section through the downstream portion 128B, the secondary outlet 152 and through the rapid discharge conduit 136 is much greater than the maximum flow section through the upstream portion 128A, the solenoid valve 144 and through the first discharge line 134, for example at least twice as much.
- control means 48 are received in the tubular housing 125. They comprise a receiver 154 and a control unit 156 of the jack 44.
- the receiver 154 is adapted to receive a valve opening command signal transmitted from the surface and to transmit an order to the control unit 156, for the maintenance of the valve 90 in its open position, as long as the signal command is received by the receiver 154.
- the receiver 154 is also able to receive a temporary silence signal from the well 12 and to transmit an order to the control unit 156, to temporarily hold the valve 90 in its open position even in the absence of a signal valve opening.
- the control unit 156 is electrically connected to the solenoid valve 144, to the electropump 126, and to the pressure switch 140 for controlling the jack 44.
- valve housing 40 of a size adapted to fit into the second conduit 20 is selected.
- a hydraulic unit 46 common to valve housings 40 of different diameters is fixed in the lateral passage 78 and is hydraulically connected to the distal ends of the conduits 124A and 124B.
- the autonomous device 10 according to the invention is thus formed.
- the deployment means 14 are disposed on the wellhead 22.
- the laying train 31 is mounted on the receiving head 80 at the proximal end of the valve housing 40.
- valve housing 40, the holding means 42, the hydraulic actuator 44 and the hydraulic unit 46 integral with the housing 40, forming the device 10 are then introduced into the second conduit 20 and are thus lowered simultaneously under the control. from work line to cable 30.
- the device 10 When the device 10 reaches a desired position in the second duct 20, for example when the anchoring means 56 are arranged opposite a latching housing 26B, the working line to the cable 30 is stopped.
- the anchoring means 56 are then activated by the operator to lock the housing 40 in position in the duct 20.
- the hitching dogs 86 are inserted in the housing 26B and a tight connection is made between the housing 40 and the second conduit 20.
- the valve 90 is held in its closed position of the passage 52, the sleeve 98 being in its proximal position.
- the safety device 10 then closes the second conduit 20 in a sealed manner.
- the receiver 154 When the receiver 154 receives the valve opening control signal, it transmits an activation command to the control unit 156. The unit 156 then activates the electropump 126 and the solenoid valve 144 to introduce into it. the chamber 120 a portion of the liquid contained in the tarpaulin 122. The volume of the tarpaulin 122 decreases, which causes the distal displacement of the piston 100.
- the priming of the electropump 126 is favored by the presence of the biased spring 104 which presses on the piston 100 when the sleeve 98 is in its proximal position, to slightly compress the fluid contained in the cover 122.
- the pressure in the chamber 120 increases and is applied in the annular space 107, between the proximal seal 73 and the distal seal 108, which causes the displacement the sleeve 98 to its distal position, against the return spring 104 which is compressed between the piston 100 and the stop 102.
- valve 90 When the sleeve 98 has reached its position in abutment against the abutment shoulder 76, the valve 90 is wedged against the distal portion 64 and closes the lateral opening 74, as illustrated by FIG. Figure 3 .
- the pressure in the chamber 120 increases to a threshold value detected by the pressure switch 140 and transmitted to the unit 156.
- the control unit 156 determines that the pressure in the chamber 120 is greater than the threshold value it cuts off the electric pump 126.
- the solenoid valve 144 is kept closed as long as the receiver 154 receives a valve opening control signal.
- control unit 156 again activates the electropump 126 to raise the pressure in the chamber 120 to the threshold value.
- the accumulator 138 makes it possible to compensate for the pressure variations in the chamber 120, due in particular to the temperature variations in the housing 40.
- valve opening command signal emitted by the transmitting means 35 is cut off.
- the control unit 156 determines whether a temporary silence signal has been transmitted before the closing of the valve opening control signal. In the absence of such a silence signal, the control unit 156 deactivates the solenoid valve 144 which then resumes its normally open position.
- the fluid contained in the upstream portion 128A of the pipe 128, upstream of the primary inlet 148 of the rapid relief valve 146 is then reintroduced into the tank 122 via the first discharge line 134 and the proximal connection pipe 124B.
- the pressure at the level of the primary inlet 148 therefore decreases to a value less than that prevailing at the primary outlet 150.
- the secondary outlet 152 of the quick-release valve 146 opens, and the primary inlet 148 closes.
- the fluid contained in the pressurizing chamber 120 therefore discharges very rapidly into the tank 122 via the downstream portion 128B of the pipe 128, the primary outlet 150, the secondary outlet 152, the rapid discharge pipe 136 and the proximal connection 124B.
- the return spring 104 moves the sleeve 98 to its proximal position very rapidly. Note that a single spring 104 is necessary to pressurize the cover 122 when the pump 104 is deactivated, and to allow the return of the sleeve 98 to its proximal position in the event of a surface incident. The length of the housing 40 is thus reduced. Furthermore, the volume of the sheet 122 increasing after the opening of the quick-release valve 146, the difference in length of the spring 104 bearing proximally on the piston 100 between the proximal position and the distal position of the sleeve 98 is less than race of the sleeve 98 between these positions.
- the biasing spring 92 then returns the valve 90 to its closed position across the passage 52, as illustrated by FIG. Figure 6 .
- Well 12 is thus secured.
- control unit 156 maintains for a fixed time the solenoid valve 144 closed and the chamber 120 under pressure, despite the absence of control signal.
- the valve 90 remains in the open position.
- This mode of operation preserves the production of the well 12, even if an intervention that requires the absence of any control signal must be performed on another neighboring well.
- control unit 156 If a control signal is again issued, the control unit 156 is reset, so that the interruption of the control signal again causes the shutter 90 to close.
- an autonomous safety device 10 easily installed and anchored in a well. 12 by a cable working line 30.
- This device comprises a valve housing 40, means 42 for holding the valve in an open position, and hydraulic actuating means 44, 46 for holding means 42, integral with the housing 40, for their simultaneous movement in the well 12.
- Such a device 10 can be used at any point of the well 12, without the need to bring hydraulic or electrical control lines, either to replace a defective valve existing in the well 12, or to install a new valve in the well 12 without having to reassemble the production casing.
- the arrangement of the hydraulic unit 46 under the valve housing clears the fluid flow passage 52 within the valve housing and opens a passage 52 of sufficient diameter for the production of hydrocarbons or the passage of tools to at the valve 90.
- the structure of the hydraulic unit 46 is adapted for its connection to valve housings 40 of different diameters. Moreover, its structure consumes little energy, for autonomous operation of the device 10 of a long duration, between 6 months and 2 years without it being necessary to raise the device 10 to the surface.
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Abstract
Description
Un tel dispositif est utilisé pour mettre ainsi que le document
On connaît de
Lorsqu'un signal de commande électrique est reçu par les bobines électromagnétiques, la vanne est maintenue en position d'ouverture par la tige de maintien, à l'encontre d'un ressort de rappel.When an electrical control signal is received by the electromagnetic coils, the valve is held in the open position by the holding rod, against a return spring.
En l'absence de signal de commande, le ressort de rappel se déploie pour déplacer la tige, ce qui permet l'obturation rapide de la vanne.In the absence of a control signal, the return spring deploys to move the rod, which allows the valve to be closed rapidly.
On connaît également un dispositif de sécurité du même type, piloté par une ligne de commande hydraulique s'étendant à l'extérieur du tubage depuis la surface.Also known safety device of the same type, controlled by a hydraulic control line extending outside the casing from the surface.
De tels dispositifs ne donnent pas entière satisfaction. Le dispositif de sécurité doit être positionné en un point déterminé du puits, en regard des bobines d'actionnement, et les bobines doivent être liées à la surface par les lignes d'alimentation électrique, ou doit être positionné en regard de l'arrivée de la conduite hydraulique.Such devices are not entirely satisfactory. The safety device must be positioned at a certain point in the well, opposite the actuating coils, and the coils must be connected to the surface by the power supply lines, or must be positioned facing the arrival of the hydraulic pipe.
Un but de l'invention est donc de fournir un dispositif autonome de sécurité, comprenant une vanne de sécurité pouvant être installée et ancrée en n'importe quel point du puits quelle que soit l'architecture de la complétion équipant ce dernier, et pouvant être commandée depuis la surface.An object of the invention is therefore to provide an autonomous safety device, comprising a safety valve that can be installed and anchored at any point of the well regardless of the architecture of the completion equipping it, and can be ordered from the surface.
A cet effet, l'invention a pour objet un dispositif selon la revendication 1.For this purpose, the subject of the invention is a device according to claim 1.
Le dispositif selon l'invention peut comprendre l'une ou plusieurs des caractéristiques qui font l'object des revendications 2 à 12.The device according to the invention may comprise one or more of the features which are the subject of
L'invention a également pour objet une installation de sécurité pour un puits d'exploitation de fluides selon la revendication 13.The invention also relates to a safety installation for a fluid operating well according to claim 13.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels:
- la
Figure 1A est une vue en coupe suivant un plan vertical médian d'un puits de pétrole équipé d'un dispositif de sécurité selon l'invention, lors de l'exploitation du puits ; - la
Figure 1B est une vue analogue à laFigure 1A , lors de l'installation du dispositif dans le puits ; - la
Figure 2 est une vue de côté du dispositif de sécurité représenté sur laFigure 1A et sur laFigure 1B ; - la
Figure 3 est une vue en coupe suivant un plan vertical médian d'un détail du dispositif de laFigure 2 ; - la
Figure 3A est une vue d'un détail marqué IIIA sur laFigure 3 ; - la
Figure 4 est une vue en coupe transversale suivant le plan IV-IV de laFigure 3 ; - la
Figure 5 est une vue schématique des moyens d'actionnement hydrauliques du disposif de laFigure 2 ; et - la
Figure 6 est une vue analogue à laFigure 3 dans laquelle la vanne du dispositif de sécurité est obturée.
- the
Figure 1A is a sectional view along a median vertical plane of an oil well equipped with a safety device according to the invention, during the operation of the well; - the
Figure 1B is a view similar to theFigure 1A , when installing the device in the well; - the
Figure 2 is a side view of the safety device shown on theFigure 1A and on theFigure 1B ; - the
Figure 3 is a sectional view along a median vertical plane of a detail of the device of theFigure 2 ; - the
Figure 3A is a view of a detail marked IIIA on theFigure 3 ; - the
Figure 4 is a cross-sectional view along plane IV-IV of theFigure 3 ; - the
Figure 5 is a schematic view of the hydraulic actuation means of the device of theFigure 2 ; and - the
Figure 6 is a view similar to theFigure 3 in which the valve of the safety device is closed.
Dans tout ce qui suit, le terme « proximal » signifie relativement plus proche de la surface du sol, alors que le terme « distal » signifie relativement plus proche du fond d'un puits ménagé dans le sol.In what follows, the term "proximal" means relatively closer to the surface of the soil, while the term "distal" means relatively closer to the bottom of a well in the ground.
Le dispositif de sécurité autonome 10 selon l'invention, représenté sur les
Le dispositif 10 est placé en un point choisi du puits 12, par exemple situé à une profondeur comprise entre 10 m et 1000 m, en remplacement d'une vanne de sécurité défectueuse, ou pour ajouter une vanne intermédiaire de sécurité.The
Comme illustré par les
Le puits 12 comprend en outre une tête de puits 22 en surface pour obturer sélectivement le premier conduit 16 et le deuxième conduit 20.The
Le deuxième conduit 20 est de longueur inférieure à celle du premier conduit 16. Il débouche en un point 23 du premier conduit 16 situé dans une partie distale du puits 12. Des éléments de garnissage 24 annulaires sont disposés entre le premier conduit 16 et le deuxième conduit 20 au voisinage du point 23.The
Ces éléments 24 obturent de manière étanche l'espace annulaire 25 défini entre les conduits 16 et 20.These elements 24 sealingly seal the
Le deuxième conduit 20 délimite intérieurement une pluralité de gorges circulaires ou logements annulaires 26A, 26B d'accrochage, désignés par le terme anglais « landing nipple ». Ces logements 26A, 26B sont situés en des points espacés longitudinalement le long du conduit 20.The
En variante, le deuxième conduit 20 est dépourvu de logements 26A, 26B, et le dispositif 10 est ancré directement contre une paroi lisse du conduit 20.In a variant, the
Comme illustré par la
La ligne 30 est par exemple formée par un câble lisse monobrin de type «corde à piano », communément désigné par le terme anglais « slickline », avec ou sans isolant électrique sur sa surface extérieure. La ligne 30 comprend, à son extrémité distale, un train de pose 31 du dispositif 10.The
En variante, la ligne 30 est un câble électrique renforcé mécaniquement, communément désigné par le terme anglais « electric line », ou un câble creux hélicoïdal, communément désigné par le terme anglais « coiled tubing ».Alternatively, the
Le treuil 32 et les poulies 34 permettent le déploiement de la ligne de travail 30 successivement dans le deuxième conduit 20, puis dans le premier conduit 16 à travers la tête de puits 22.The
Comme illustré par la
Comme illustré par la
Comme illustré par la
Le boîtier 40 comprend en outre, au voisinage de son extrémité distale, une vanne d'obturation 58 du passage 52.The
Le corps 50 comprend, en se déplaçant depuis une extrémité proximale, à droite sur la
Comme illustré par la
La partie médiane 62 délimite également un épaulement annulaire distal 70 dirigé vers la partie distale 64 et une surface cylindrique 72 de guidage s'étendant entre la surface proximale 68 et l'épaulement distal 70.The
La surface cylindrique 72 délimite, entre l'épaulement distal 70 et la surface proximale 68, un logement annulaire qui reçoit un joint 73 d'étanchéité proximal.The
En se déplaçant distalement le long de l'axe X-X' sur la
Les moyens de liaison 54 comprennent une tête de réception 80 du train de pose 31 délimitant un logement 82 interne. La tête 80 est vissée à l'extrémité proximale de la partie tubulaire 60.The
Le logement 82 débouche distalement dans le passage 52 et proximalement par une ouverture proximale 84. Ainsi un fluide peut pénétrer dans le passage central 52 du boîtier 40 lorsque le train de pose 31 est disposé à l'écart du logement 82.The
Les moyens d'ancrage 56 comprennent des mandrins ou « chiens » latéraux 86 de verrouillage désignés par le terme anglais « lock mandrel ». Les chiens 86 font saillie radialement à l'extérieur de la tête 80 et présentent une forme complémentaire à celle des logements d'accrochage 26A, 26B ménagés dans le deuxième conduit 20.The anchoring means 56 comprise locking
Les moyens d'ancrage 56 comprennent également une garniture annulaire compressible (non représentée) destinée à réaliser l'étanchéité entre la paroi du conduit 20 et la tête 80.The anchoring means 56 also comprise a compressible annular lining (not shown) for sealing between the wall of the
La vanne d'obturation 58 comprend un siège annulaire 88 monté solidaire du corps 50 dans le passage 52, et un clapet 90 mobile entre une position d'ouverture du passage 52, et une position d'obturation du passage 52. La vanne 58 comprend également un ressort de rappel 92 du clapet 90 vers sa position d'obturation.The shut-off
Le siège de vanne 88 est fixé dans le passage 52 et réalise une liaison mécanique entre la partie médiane 62 et la partie tubulaire distale 64. Comme illustré par la
Le clapet 90 est mobile en rotation autour d'un axe horizontal perpendiculaire à l'axe X-X' situé au voisinage de la surface distale 94 du siège 88.The
Dans la position d'ouverture du clapet 90, le clapet 90 s'étend sensiblement dans le prolongement de la partie tubulaire 64 pour obturer l'ouverture latérale 74 et libérer le passage 52.In the open position of the
Dans la position d'obturation, représentée sur la
Le ressort 92 sollicite en permanence le clapet 90 vers sa position d'obturation.The
Les moyens de maintien 42 de la vanne dans sa position d'ouverture comprennent un manchon 98 cylindrique monté mobile en translation le long de l'axe X-X' dans le passage 52, entre une position proximale de repos et une position distale d'ouverture de la vanne 58. Les moyens 42 comprennent en outre, montés sur le manchon 98, un piston distal 100 de pressurisation, une butée proximale 102 de guidage du manchon, et un ressort hélicoïdal 104 de rappel du manchon vers sa position proximale.The means 42 for holding the valve in its open position comprise a
Le manchon 98 s'étend longitudinalement dans le corps 40 en regard de la partie tubulaire proximale 60, de la partie médiane 62 et, dans sa position proximale, de la partie distale 64. Comme illustré par la
Comme illustré par la
Le piston annulaire distal 100 est monté coulissant sur la manchon 98 entre la surface extérieure 106 et la partie tubulaire proximale 60. Il délimite une surface annulaire distale 110 qui s'étend en regard de la surface proximale 68. Il délimite par ailleurs une surface annulaire proximale 112 sur laquelle s'appuie une extrémité distale du ressort 104.The distal
La butée annulaire proximale 102 est montée solidaire de l'extrémité proximale du manchon 98. Elle s'étend entre le manchon 98 et la partie tubulaire 60. La butée 102 coulisse dans la partie tubulaire 60 et délimite une surface annulaire distale 114 sur laquelle s'appuie l'extrémité proximale du ressort 104. La butée 102 comprend un joint de raclage 115 disposé en appui sur la partie tubulaire 60.The proximal
Dans la position proximale du manchon 98, représentée sur la
Dans cette position, le bord distal du manchon 98 est disposé en regard du siège 88, proximalement par rapport au clapet 90.In this position, the distal edge of the
Dans la position distale du manchon 98, représentée sur la
Dans cette position, une partie distale du manchon 98 s'étend en regard de l'ouverture latérale 74. Le bord distal du manchon 98 s'appuie sur l'épaulement de butée 76 de la partie distale 64. Le manchon 98 couvre le clapet 90. Par ailleurs, le joint 108 est éloigné distalement de la surface proximale 93 du siège 88 de vanne.In this position, a distal portion of the
Comme illustré par les
La chambre 120 comprend un espace intermédiaire 121 de volume constant et l'espace annulaire 107 de volume variable.The
L'espace intermédiaire 121 s'étend entre le corps 50 et le manchon 98. Il est délimité proximalement par l'épaulement distal 70 de la partie médiane 62, par la surface proximale 93 du siège 88, et par la surface extérieure 106 du manchon. L'espace 121 est raccordé à l'espace annulaire 107.The
Dans la position proximale du manchon 98, la distance entre le joint proximal 73 et le joint distal 108 est minimale et le volume de la chambre 120 est minimal. Dans la position distale du manchon 98, cette distance est maximale et le volume de la chambre 120 est maximal.In the proximal position of the
La bâche 122 s'étend entre le corps 50 et le manchon 98 proximalement par rapport à la chambre 120. Elle est délimitée par la partie tubulaire proximale 60, par la surface proximale 68 de la partie médiane 62, par la surface 106, et par la surface distale 110 du piston 100.The
Le volume de la bâche 122 dépend de la position longitudinale du piston 100 le long du manchon 98 et du corps 50.The volume of the
Comme illustré par la
Comme illustré par la
Le boîtier tubulaire 125 fait saillie distalement à l'extérieur du corps 50 le long de l'axe X-X'. Son extrémité proximale est introduite dans l'ouverture distale de la partie distale 64 et reçue dans le passage de montage 78, pour sa fixation à la partie distale 64 du corps 50.The
L'électro-pompe 126 raccorde la conduite de raccordement proximale 124B à une entrée de la conduite 128, pour relier la bâche 122 à la conduite 128.The
La conduite de mise en pression 128 comprend, d'amont en aval, depuis l'électro-pompe 126 vers la chambre 120, un clapet anti-retour à fuite nulle 130, et une partie amont 128A sur laquelle sont piquées une conduite de sécurité 132 et une première conduite de décharge 134 reçues dans le boîtier 125. La conduite 128 comprend en outre une partie aval 128B sur laquelle sont piquées une conduite de décharge rapide 136 et un accumulateur 138, reçus dans le boîtier tubulaire 125.The pressurizing
La conduite de sécurité 132 est piquée sur la partie amont de la conduite de mise en pression 128 à la sortie du clapet 130. Elle débouche à l'entrée de la conduite de raccordement proximale 124B. La conduite de sécurité 132 est munie, d'amont en aval, d'un manocontact 140 et d'un clapet de surpression 142.The
La première conduite de décharge 134 est piquée sur la partie amont 128A de la conduite 128 en aval de la conduite 132. La conduite 134 est munie d'une électrovanne pilotée 144 de sécurité, normalement ouverte, qui débouche dans la conduite de raccordement proximale 124B.The
L'électrovanne 144 est raccordée électriquement aux moyens de commande 48.The
La conduite de décharge rapide 136 est piquée sur la conduite de mise en pression 128 par l'intermédiaire d'un clapet de dérivation 146, délimitant la partie amont 128A et la partie aval 128B sur la conduite 128.The
Le clapet 146 comprend une entrée primaire 148 et une sortie primaire 150 débouchant respectivement dans la partie amont 128A de la conduite de mise en pression 128 vers l'électro-pompe 126, et dans la partie aval 128B de la conduite 128 vers la chambre 120. Le clapet 146 comprend en outre une sortie secondaire 152 raccordée à la conduite de décharge rapide 136.The
Lorsque la pression qui règne au niveau de l'entrée primaire 148 est supérieure ou sensiblement égale à la pression qui règne au niveau de la sortie primaire 150, la sortie secondaire 152 est obturée, de sorte que l'entrée primaire 148 est raccordée hydrauliquement à la sortie primaire 150.When the pressure prevailing at the
Au contraire, lorsque la pression qui règne au niveau de l'entrée primaire 148 est inférieure à la pression qui règne au niveau de la sortie primaire 150, l'entrée primaire 148 est obturée et la sortie primaire 150 est raccordée hydrauliquement à la sortie secondaire 152 et donc à la bâche 122, par l'intermédiaire de la conduite 124B.In contrast, when the pressure at the
La section d'écoulement minimale à travers la partie aval 128B, la sortie secondaire 152 et à travers la conduite de décharge rapide 136 est très supérieure à la section d'écoulement maximale à travers la partie amont 128A, l'électrovanne 144 et à travers la première conduite de décharge 134, par exemple au moins deux fois supérieure.The minimum flow section through the
Comme illustré par la
Le récepteur 154 est apte à recevoir un signal de commande d'ouverture de vanne émis depuis la surface et à transmettre un ordre à l'unité de commande 156, pour le maintien du clapet 90 dans sa position d'ouverture, tant que le signal de commande est reçu par le récepteur 154.The
Le récepteur 154 est également apte à recevoir un signal de mise sous silence temporaire du puits 12 et à transmettre un ordre à l'unité de commande 156, pour maintenir temporairement le clapet 90 dans sa position d'ouverture même en l'absence de signal d'ouverture de vanne.The
L'unité de commande 156 est reliée électriquement à l'électrovanne 144, à l'électro-pompe 126, et au manocontact 140 pour la commande du vérin 44.The
Le fonctionnement du dispositif autonome de sécurité 10 selon l'invention, pour remplacer une vanne défectueuse dans le puits 12 va maintenant être décrit.The operation of the self-contained
Initialement, un boîtier de vanne 40 de dimension adaptée pour s'insérer dans le deuxième conduit 20 est sélectionné.Initially, a
Une centrale hydraulique 46 commune à des boîtiers de vanne 40 de diamètres différents est fixée dans le passage latéral 78 et est raccordée hydrauliquement aux extrémités distales des conduites 124A et 124B.A
Le dispositif autonome 10 selon l'invention est ainsi formé.The
Puis, en référence à la
Le boîtier de vanne 40, les moyens de maintien 42, le vérin hydraulique 44 d'actionnement et la centrale hydraulique 46 solidaires du boîtier 40, formant le dispositif 10, sont alors introduits dans le deuxième conduit 20 et sont ainsi descendus simultanément sous la commande de la ligne de travail au câble 30.The
Lorsque le dispositif 10 atteint une position désirée dans le deuxième conduit 20, par exemple lorsque les moyens d'ancrage 56 sont disposés en regard d'un logement d'accrochage 26B, la ligne de travail au câble 30 est stoppée.When the
Les moyens d'ancrage 56 sont alors activés par l'opérateur pour bloquer en position le boîtier 40 dans le conduit 20.The anchoring means 56 are then activated by the operator to lock the
A cet effet, les chiens d'accrochage 86 sont insérés dans les logements 26B et une liaison étanche est réalisée entre le boîtier 40 et le deuxième conduit 20.For this purpose, the hitching
Puis, le train de pose 31 est libéré des moyens de liaison 54, pour dégager l'ouverture 84 à l'entrée du passage 52. Les moyens de déploiement 14 sont alors retirés (
Le clapet 90 est maintenu dans sa position d'obturation du passage 52, le manchon 98 étant dans sa position proximale.The
Le dispositif de sécurité 10 obture alors le deuxième conduit 20 de manière étanche.The
Dès que l'opérateur du puits souhaite ouvrir le deuxième conduit 20, il active les moyens d'émission 35 en surface pour émettre un signal de commande d'ouverture de vanne.As soon as the operator of the well wishes to open the
Lorsque le récepteur 154 reçoit le signal de commande d'ouverture de vanne, il transmet un ordre d'activation à l'unité de commande 156. L'unité 156 active alors l'électro-pompe 126 et l'électrovanne 144 pour introduire dans la chambre 120 une partie du liquide contenu dans la bâche 122. Le volume de la bâche 122 diminue, ce qui provoque le déplacement distal du piston 100.When the
A cet égard, l'amorçage de l'électro-pompe 126 est favorisé par la présence du ressort de rappel 104 précontraint qui appuie sur le piston 100 lorsque le manchon 98 est dans sa position proximale, pour comprimer légèrement le fluide contenu dans la bâche 122.In this regard, the priming of the
Une fois l'électro-pompe 126 amorcée et l'électrovanne 144 fermée, la pression dans la chambre 120 augmente et s'applique dans l'espace annulaire 107, entre le joint proximal 73 et le joint distal 108, ce qui provoque le déplacement du manchon 98 vers sa position distale, à l'encontre du ressort de rappel 104 qui se comprime entre le piston 100 et la butée 102.Once the
Lors de ce déplacement, le bord distal du manchon 98 pousse le clapet 90, et le déplace de sa position d'obturation à sa position d'ouverture, à l'encontre du ressort de sollicitation 92.During this movement, the distal edge of the
Lorsque le manchon 98 a atteint sa position en butée contre l'épaulement de butée 76, le clapet 90 est calé contre la partie distale 64 et obture l'ouverture latérale 74, comme illustré par la
Par ailleurs, la pression dans la chambre 120 augmente jusqu'à une valeur seuil détectée par le manocontact 140 et transmise à l'unité 156. Lorsque l'unité de commande 156 détermine que la pression dans la chambre 120 est supérieure à la valeur seuil, elle coupe l'électro-pompe 126.On the other hand, the pressure in the
L'électrovanne 144 est maintenue obturée tant que le récepteur 154 reçoit un signal de commande d'ouverture de vanne.The
Si la pression dans la chambre 120 diminue en dessous d'une valeur de redémarrage de l'électro-pompe 126, l'unité de commande 156 active de nouveau l'électro-pompe 126 pour remonter la pression dans la chambre 120 jusqu'à la valeur seuil.If the pressure in the
Toutefois, la présence d'un clapet anti-retour à fuite nulle 130 diminue le temps de fonctionnement de l'électro-pompe 126 et augmente l'autonomie du dispositif 10.However, the presence of a zero
L'accumulateur 138 permet de compenser les variations de pression dans la chambre 120, dues notamment aux variations de température dans le boîtier 40.The
En cas d'incident en surface, le signal de commande d'ouverture de vanne émis par les moyens d'émission 35 est coupé.In the event of a surface incident, the valve opening command signal emitted by the transmitting means 35 is cut off.
Dès que le récepteur 154 ne reçoit plus ce signal, l'unité de commande 156 détermine si un signal de mise sous silence temporaire a été émis avant la coupure du signal de commande d'ouverture de vanne. En l'absence d'un tel signal de mise sous silence., l'unité de commande 156 désactive l'électrovanne 144 qui reprend alors sa position normalement ouverte.As soon as the
En référence à la
La pression qui règne au niveau de l'entrée primaire 148 diminue donc à une valeur inférieure à celle qui règne à la sortie primaire 150.The pressure at the level of the
Par suite, la sortie secondaire 152 du clapet de décharge rapide 146 s'ouvre, et l'entrée primaire 148 se ferme. Le fluide contenu dans la chambre de mise en pression 120 se décharge donc très rapidement dans la bâche 122 via la partie aval 128B de la conduite 128, la sortie primaire 150, la sortie secondaire 152, la conduite de décharge rapide 136 et la conduite de raccordement proximale 124B.As a result, the
La pression dans la chambre 120 diminuant rapidement, le ressort de rappel 104 déplace le manchon 98 vers sa position proximale de manière très rapide. On notera qu'un seul ressort 104 est nécessaire pour pressuriser la bâche 122 lorsque la pompe 104 est désactivée, et pour permettre le rappel du manchon 98 vers sa position proximale en cas d'incident en surface. La longueur du boîtier 40 est ainsi diminuée. Par ailleurs, le volume de la bâche 122 augmentant après l'ouverture du clapet de décharge rapide 146, la différence de longueur du ressort 104 en appui proximal sur le piston 100 entre la position proximale et la position distale du manchon 98 est inférieure à la course du manchon 98 entre ces positions.As the pressure in the
Le ressort de sollicitation 92 ramène alors le clapet 90 dans sa position d'obturation en travers du passage 52, comme illustré par la
Si toutefois l'opérateur a émis, avant la coupure du signal d'ouverture de vanne, un signal de mise sous silence temporaire préalablement programmé, l'unité de commande 156 maintient pendant un temps déterminé l'électrovanne 144 obturée et la chambre 120 sous pression, malgré l'absence de signal de commande. Le clapet 90 reste donc en position d'ouverture.If, however, the operator has transmitted, before the cutoff of the valve opening signal, a previously programmed temporary silence signal, the
Ce mode de fonctionnement préserve la production du puits 12, même si une intervention qui requiert l'absence de tout signal de commande doit être réalisée sur un autre puits voisin.This mode of operation preserves the production of the well 12, even if an intervention that requires the absence of any control signal must be performed on another neighboring well.
Si un signal de commande est à nouveau émis, l'unité de commande 156 est réinitialisée, de sorte que la coupure du signal de commande provoque à nouveau la fermeture du clapet 90.If a control signal is again issued, the
Grâce à l'invention qui vient d'être décrite, il est possible de disposer d'un dispositif de sécurité autonome 10 facilement installé et ancré dans un puits 12 par une ligne de travail au câble 30. Ce dispositif comprend un boîtier de vanne 40, des moyens 42 de maintien de la vanne dans une position d'ouverture, et des moyens d'actionnement hydraulique 44, 46 des moyens de maintien 42, solidaires du boîtier 40, pour leur déplacement simultané dans le puits 12.Thanks to the invention which has just been described, it is possible to have an
Un tel dispositif 10 est utilisable en un point quelconque du puits 12, sans qu'il soit nécessaire d'amener des lignes de commande hydrauliques ou électriques, soit en remplacement d'une vanne défectueuse existante dans le puits 12, soit pour installer une nouvelle vanne dans le puits 12 sans avoir à remonter le tubage de production.Such a
La disposition de la centrale hydraulique 46 sous le boîtier de vanne dégage le passage de circulation de fluide 52 à l'intérieur du boîtier de vanne et ouvre un passage 52 de diamètre suffisant pour la production d'hydrocarbures ou le passage d'outils jusqu'au clapet 90.The arrangement of the
La structure de la centrale hydraulique 46 est adaptée pour son raccordement à des boîtiers de vanne 40 de diamètres différents. Par ailleurs, sa structure est peu consommatrice d'énergie, pour un fonctionnement autonome du dispositif 10 d'une longue durée, comprise entre 6 mois et 2 ans sans qu'il soit nécessaire de remonter le dispositif 10 à la surface.The structure of the
Claims (13)
- Safety device (10) for a fluid production well (12), of the type comprising:- a valve housing (40) intended to be fixed tightly inside a fluid flow conduit (20), the housing (40) delimiting a fluid flow passage (52) and comprising:• a valve (58) used to seal the passage, and which can move between an open position of the passage (52) and a closed position of the passage (52);• means (92) for permanently biasing the valve (58) towards the closed position thereof; and• means (54) for connecting the housing (40) to a coupling member (31) for a working wire line (30) intended to move and anchor the housing (40) in the conduit (20);- means (42) for holding the valve (58) in its open position against the permanent biasing means (92), said holding means (42) comprising at least one movement element (98) for the valve (58), which can move in the valve housing (40) between a rest position and an active valve (58) biasing position of the valve (58), and an element (104) for permanently returning the movement element (98) to its rest position; and- means (44, 46) for hydraulically actuating the holding means (42), which can be controlled by a control signal to actuate the holding means upon receipt of a valve open control signal by the actuating means (44, 46), and to deactivate the holding means in the absence of said signal;the holding means (42) and the actuating means (44, 46) being connected to the housing (40) for the simultaneous movement under the control of the working wire line (30) of the valve housing, of the holding means and of the actuating means,
in which the actuating means are hydraulic means for actuating the holding means which comprise a hydraulic cylinder (44) and a hydraulic control unit (46) for the cylinder (44). - Device according to claim 1, characterised in that the hydraulic unit (46) projects at least partially in relation to the housing (40) along a longitudinal axis of the valve housing, outside the flow passage (52), the flow passage (52) being clear between the connection means (54) and the valve (58).
- Device according to either claim 1 or claim 2, characterised in that the hydraulic unit (46) can be removed from the valve housing (40), said valve housing (40) comprising reception means (78) for the unit (46).
- Device (10) according to any one of claims 1 to 3, characterised in that the cylinder (44) comprises:- a control fluid pressurising chamber (120), said chamber (120) receiving a portion (108) of the movement element (98) of the valve (58); and- a control fluid reserve and discharge tank (122),
and in that the hydraulic control unit (46) comprises:- a pump (126) for feeding the control fluid into the pressurising chamber (120);- a pressurising conduit (128) connecting the pressurising chamber (120) to the discharge tank (122); and- a first discharge conduit (134) fastened on the pressurising conduit (128) provided with a discharge valve (144) that is open in the absence of the control signal, and closed in the presence of said signal. - Device (10) according to claim 4, characterised in that the return element (104) stresses a pressurisation piston (100) of the tank (122).
- Device (10) according to either claim 4 or claim 5, characterised in that the actuating means (44, 46) comprise a rapid discharge conduit (136), fastened on the pressurising conduit (128), the rapid discharge conduit (136) being provided with a sealing element (146) that can be released when the discharge valve (144) is open.
- Device (10) according to claim 6, characterised in that the maximum cross-section of the first discharge conduit (134) and of the upstream portion (128A) of the pressurising conduit (128) situated upstream of the releasable sealing element (146) is less than the minimum cross-section of the rapid discharge conduit (136) and of the downstream portion (128B) of the pressurising conduit (128) situated downstream of the releasable sealing element (146).
- Device (10) according to any one of claims 4 to 7, characterised in that the actuating means (44, 46) comprise a control fluid accumulator (138) connected to the pressurising chamber (120).
- Device (10) according to any one of claims 4 to 8, characterised in that the actuating means (44, 46) comprise a zero-leakage non-return valve (130), interposed between the pump (126) and the pressurising chamber (120).
- Device according to any one of claims 1 to 9, characterised in that the hydraulic unit (46) comprises means (48) for controlling the cylinder (44), said control means (48) comprising:- a receiver (154);- a control unit (156) which is able to drive the cylinder (44) to actuate the holding means (42) upon reception of a valve open control signal by the receiver (154), and to deactivate said holding means (42) in the absence of said signal.
- Device according to claim 10, characterised in that the control unit (156) is suitable for driving the cylinder (44) to actuate at least temporarily the holding means (42) in the absence of a valve open signal, after receipt of a silence signal by the receiver (154).
- Device (10) according to any one of the preceding claims, characterised in that it comprises releasable means (56) for anchoring the housing (40) in the conduit (20), carried by the housing (40).
- Safety installation for a fluid production well (12) comprising a fluid flow conduit (20) said installation comprising:- a device (10) according to any one of the preceding claims, and- means (30, 31) for deploying said device (10) in the conduit comprising a working wire line (30) connected to the connection means (54).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0508880A FR2890099B1 (en) | 2005-08-30 | 2005-08-30 | SAFETY DEVICE FOR AN OIL WELL AND ASSOCIATED SECURITY INSTALLATION. |
PCT/FR2006/001996 WO2007026072A1 (en) | 2005-08-30 | 2006-08-28 | Safety device for an oil well and associated safety installation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1920133A1 EP1920133A1 (en) | 2008-05-14 |
EP1920133B1 true EP1920133B1 (en) | 2011-04-20 |
Family
ID=36364466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06808057A Expired - Fee Related EP1920133B1 (en) | 2005-08-30 | 2006-08-28 | Safety device for an oil well and associated safety installation |
Country Status (9)
Country | Link |
---|---|
US (1) | US8220534B2 (en) |
EP (1) | EP1920133B1 (en) |
CN (1) | CN101273182B (en) |
BR (1) | BRPI0617126B1 (en) |
CA (1) | CA2616501C (en) |
DE (1) | DE602006021438D1 (en) |
FR (1) | FR2890099B1 (en) |
NO (1) | NO338700B1 (en) |
WO (1) | WO2007026072A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2944048A1 (en) * | 2009-04-02 | 2010-10-08 | Geoservices Equipements | INTERVENTION DEVICE IN A FLUID OPERATING WELL, OPERATING PLANT AND ASSOCIATED METHOD |
US8453748B2 (en) | 2010-03-31 | 2013-06-04 | Halliburton Energy Services, Inc. | Subterranean well valve activated with differential pressure |
US9771775B2 (en) | 2011-11-08 | 2017-09-26 | Shell Oil Company | Valve for a hydrocarbon well, hydrocarbon well provided with such valve and use of such valve |
EP2815060A1 (en) | 2012-02-14 | 2014-12-24 | Shell Internationale Research Maatschappij B.V. | Method for producing hydrocarbon gas from a wellbore and valve assembly |
EP2878762A1 (en) | 2013-12-02 | 2015-06-03 | Geoservices Equipements | Safety device for a fluid production well, associated installation and method |
US11815922B2 (en) | 2019-10-11 | 2023-11-14 | Schlumberger Technology Corporation | Multiple valve control system and method |
US11708743B2 (en) | 2021-05-13 | 2023-07-25 | Schlumberger Technology Corporation | Universal wireless actuator for surface-controlled subsurface safety valve |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3874634A (en) * | 1973-11-07 | 1975-04-01 | Otis Eng Co | Well safety valve system |
US4002202A (en) * | 1975-09-24 | 1977-01-11 | Huebsch Donald L | Fail-safe safety cut-off valve for a fluid well |
US4691776A (en) * | 1986-05-29 | 1987-09-08 | Camco, Incorporated | Retrievable well safety valve with expandable external seals |
US5251702A (en) * | 1991-07-16 | 1993-10-12 | Ava International Corporation | Surface controlled subsurface safety valve |
AU8070798A (en) * | 1997-07-24 | 1999-02-16 | Camco International, Inc. | Full bore variable flow control device |
US6269874B1 (en) * | 1998-05-05 | 2001-08-07 | Baker Hughes Incorporated | Electro-hydraulic surface controlled subsurface safety valve actuator |
US6216784B1 (en) * | 1999-07-29 | 2001-04-17 | Halliburton Energy Services, Inc. | Subsurface electro-hydraulic power unit |
FR2820457B1 (en) * | 2001-02-02 | 2003-08-01 | Inst Francais Du Petrole | SAFETY VALVE WITH DIRECT INSTALLATION IN A TUBE FOR PRODUCING AN OIL WELL AND METHOD FOR IMPLEMENTING SAME |
US6619388B2 (en) * | 2001-02-15 | 2003-09-16 | Halliburton Energy Services, Inc. | Fail safe surface controlled subsurface safety valve for use in a well |
WO2003072906A1 (en) * | 2002-02-06 | 2003-09-04 | Geoservices | Actuator for closing a safety valve and safety assembly |
-
2005
- 2005-08-30 FR FR0508880A patent/FR2890099B1/en not_active Expired - Fee Related
-
2006
- 2006-08-28 WO PCT/FR2006/001996 patent/WO2007026072A1/en active Application Filing
- 2006-08-28 CA CA2616501A patent/CA2616501C/en not_active Expired - Fee Related
- 2006-08-28 EP EP06808057A patent/EP1920133B1/en not_active Expired - Fee Related
- 2006-08-28 US US11/991,005 patent/US8220534B2/en active Active
- 2006-08-28 CN CN2006800316366A patent/CN101273182B/en not_active Expired - Fee Related
- 2006-08-28 DE DE602006021438T patent/DE602006021438D1/en active Active
- 2006-08-28 BR BRPI0617126A patent/BRPI0617126B1/en not_active IP Right Cessation
-
2008
- 2008-02-26 NO NO20080954A patent/NO338700B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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US20090314485A1 (en) | 2009-12-24 |
CN101273182B (en) | 2013-03-13 |
CN101273182A (en) | 2008-09-24 |
BRPI0617126A2 (en) | 2011-07-12 |
NO20080954L (en) | 2008-05-21 |
NO338700B1 (en) | 2016-10-03 |
DE602006021438D1 (en) | 2011-06-01 |
US8220534B2 (en) | 2012-07-17 |
FR2890099B1 (en) | 2007-11-30 |
EP1920133A1 (en) | 2008-05-14 |
BRPI0617126B1 (en) | 2017-03-28 |
FR2890099A1 (en) | 2007-03-02 |
CA2616501A1 (en) | 2007-03-08 |
WO2007026072A1 (en) | 2007-03-08 |
CA2616501C (en) | 2014-01-28 |
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