EP3237723A1 - Device for insulating a portion of a well or a pipeline, and control means implemented in such an insulation device - Google Patents
Device for insulating a portion of a well or a pipeline, and control means implemented in such an insulation deviceInfo
- Publication number
- EP3237723A1 EP3237723A1 EP15819827.5A EP15819827A EP3237723A1 EP 3237723 A1 EP3237723 A1 EP 3237723A1 EP 15819827 A EP15819827 A EP 15819827A EP 3237723 A1 EP3237723 A1 EP 3237723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- housing
- space
- closure member
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B34/102—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position
Definitions
- the invention relates to the field of drilling, including but not limited to the field of oil drilling and geothermal.
- the invention relates to a device for isolating a portion of a well or pipe comprising a tubular pipe provided along its outer face with at least one radially expandable channel.
- FIGs 1 and 2 To illustrate the state of the art in the art, there is shown in Figures 1 and 2 attached, a portion of metal tubular conduit BP, known in the English terminology "casing", an insulation device.
- the BP line is placed inside a well A (it could however be a casing).
- FIGS. 1 and 2 On the outer surface of the pipe BP there are several cylindrical metal pipes, only a jacket C being shown in FIGS. 1 and 2. The ends of the jacket C are sealed to the surface on the surface. external of the BP line, for example via rings or rings B.
- An expansion opening O is provided in the wall of the LP duct (several openings may be provided), so as to make the internal space of the LP duct communicate with the annular space provided between the wall of the duct. the BP line and the C shirt.
- the jacket C is covered over all or part of its length with a layer of elastically deformable material, for example an elastomer, which constitutes a "sheet”, or “strip”, annular sealing D, a few meters thick.
- a layer of elastically deformable material for example an elastomer, which constitutes a "sheet”, or “strip”, annular sealing D, a few meters thick.
- the chimney may be covered with several sealing modules, spaced from each other.
- the jacket C, and in particular the annular sealing ply D, is fixed against the internal wall of the formation F, at the level of the zone to be sealed, by radial expansion.
- This expansion operation is carried out, in the example illustrated, by hydroforming a fluid under pressure.
- the opening O is not closed, a pressure drop occurs inside the BP pipe is the latter is in commun ication with the annular spaces EA1 and EA2.
- EP 2,607,613 A1 discloses a self-actuated closure device which is in the form of a valve disposed in the communication opening between the inside of the pipe and the pipe. In case of rupture of the jacket, the valve moves from an open position, in which the fluid passes from the inside of the pipe to the inside of the chimney, to a closed position, in which the passage of the fluid from inside the pipe inside the chimney is being fished.
- the valve is, in its closed position, applied against the body in which is formed the opening of communication so as to close the latter.
- the seal which is metal-on-metal, is not optimal.
- the valve moves under the effect of a spring towards its open position.
- a radially expandable locking member which prevents the return of the valve to its open position.
- the invention therefore particularly aims to overcome all or part of these disadvantages of the prior art.
- the object of the invention is, in at least one embodiment, to provide a device for controlling the fluid passage which is efficient and which fully fulfills its function in case of rupture of the jacket of a device. insulation of part of a well or pipe.
- the sealing and sealing functions must be ensured regardless of the liquid or gaseous environment in which the isolation device is used.
- Another object of the invention in at least one embodiment, is to provide such a control device: it is simple to implement and com pact;
- the invention manages to complete all or part of these objectives by means of a device for isolating a part of a well or a pipe comprising a pipe provided, on its external face, with at least one pipe. outer portion surrounding said pipe, the ends of the jacket being sealingly secured to the outer surface of the pipe, the chimney being capable of radially expanding and sealingly engaging against the inner wall of the pipe; at least one expansion pipe communicating the interior of the pipe with the space between the outer surface of the pipe and the inner wall of the pipe, said at least one pipe of expansion comprising means for controlling the passage of pressurized fluid between the interior of the pipe and the space.
- control means comprise:
- a first shutter member located in said housing and movable between a first closed and sealed position where the fluid can not flow from the space to the pipe, a second closed position, the second closed position being reached when the flow fluid flow to the space exceeds a predetermined threshold and at least one intermediate open position between these two closed positions in which the flow of fluid from the pipe to the space is allowed;
- a second shutter member fixedly mounted in said housing and configured to disengage from said housing when the first shutter member is in the second closed position and that the pressure difference between the pipe and the space exceeds a threshold predetermined, so as to cooperate with the first shutter member and to prevent the flow of fluid from the pipe to space or from the space to the pipe, regardless of the pressure inside or outside the pipe.
- the invention thus proposes a device for controlling the passage of fluid (or valve) between a tubular conduit, or "casing”, and a sleeve, or sleeve, which is expandable by an insulation device of a part of a well or pipeline, such a control device being disposed in the expansion line connecting the "casing" to the inner space of the sleeve.
- control device comprises a first shutter element, in the form of a valve, movable between at least one open position allowing the passage of fluid during expansion of the jacket and a first position. closed when the fluid for expanding the casing and from the "casing" is purged (that is, once the casing is expanded).
- the first closure element can also take a second closed position (but not necessarily perfectly sealed), the second closed position being reached when the flow of fluid from the "casing" exceeds a predetermined threshold (typically 1001 / m in).
- control device comprises a second shutter member which, during the expansion phase of the sleeve, is fixed.
- the second shutter element becomes movable and cooperates with the first shutter element to ensure an optimum seal between the interior. r and the outside of the pipe.
- This second shutter element thus constitutes a locking element which prevents the return of the first movable shutter element to its open position, in the event of rupture of the jacket, thus preventing the flow of fluid from the inside of the chamber. casing "to the outside or outside the” casing “to the inside of the” casing ".
- said second shutter member is a hollow element in which is mounted movably, along the longitudinal axis of said housing, said first shutter member.
- said second shutter member has an inlet communicating with the inside of the pipe and an outlet orifice communicating with the space, said first movable shutter member closing said orifice in the first closed position and said outlet in the second closed position.
- said second closure member disengaged from said housing, said first closure member and said second closure member cooperate by moving along the longitudinal axis of said housing so as to permanently close off said inlet port.
- said first shutter member is integral with at least one spring secured to said housing and tending to move said first shutter member to said inlet port.
- said second closure member is attached to a breakable portion of said housing.
- the attachment of said second shutter member to said breakable portion is implemented by welding.
- said breakable portion of said housing remains fixed to said second closure member when the latter closes from said housing.
- said housing has a zone of weakness connecting said breakable portion of said housing to the remainder of said housing, said zone of weakness comprising at least one lumen formed in the wall of said housing.
- the first movable shutter member carries first sealing means intended to come into contact with said second shutter member when the first movable shutter member closes said inlet orifice.
- said second closure member carries second sealing means coming into contact with the inner wall of said housing.
- said second closure member is fixed to said housing by gluing.
- said second closure member is fixed to said housing by at least one shear pin.
- said second closure member is held in said housing by a cover carrying breakable spring blades integral with said housing.
- control means are arranged at least in part:
- the invention also relates to control means implemented in an isolation device as described above.
- control means comprise:
- a first shutter member located in said housing and movable between a first closed and sealed position where the fluid can not flow from the space to the pipe, a second closed position, the second closed position being reached when the flow fluid flow to the space exceeds a predetermined threshold and at least one intermediate open position between these two closed positions in which the flow of fluid from the pipe to the space is allowed;
- a second shutter member fixedly mounted in said housing and configured to disengage itself from said housing when the first shutter member is in the second closed position and that the pressure difference between the duct and the space exceeds a predetermined threshold, so as to cooperate with the first shutter member and to prevent the flow of fluid from the pipe to the space or space to the cond uite, whatever the pressure inside or outside the pipe.
- FIGS. 1 and 2 are diagrammatic views, along a longitudinal sectional plane, of a state-of-the-art isolation device, respectively showing an expandable gate in the original state and a once deformed radially;
- FIGS. 3A and 3B are schematic longitudinal sectional views of the isolation device of FIGS. 1 and 2 when the jacket is expanded facing a cavity formed in the wall of a drilling hole;
- Figure 4A is a schematic sectional view of a control device according to a first embodiment of the invention.
- Figure 4B is a perspective view of the second shutter member of the control device of Figure 4A;
- Figs. 5A to 5H illustrate the operation of the controller of Fig. 4A;
- Fig. 6A is a schematic sectional view of a controller according to a second embodiment of the invention, Fig. 6B being a detail view of Fig. 6A;
- Fig. 7A is a schematic sectional view of a controller according to a third embodiment of the invention, Fig. 7B being a detail view of Fig. 7A;
- Figure 8 is a schematic sectional view of a control device according to a fourth embodiment of the invention.
- Figs. 9A to 9H illustrate the operation of the controller of Fig. 6A;
- Figures 10 to 12 schematically illustrate various possible implementations of the control device of the invention.
- control device for the fluid passage, or valve, according to the invention intended to be put in place in an isolation device as described, for example, in connection with Figures 1 and 2.
- control device of the fluid passage according to the invention can be mounted:
- the control device of the fluid passage according to the invention is intended to close / seal this expansion opening O in case of rupture of the jacket.
- control device of the fluid passage according to the invention is disposed in the pipe connecting the expansion opening O of the pipe BP to the internal space E of the pipe C.
- the fluid passage control device, or valve, 1 is disposed in the expansion opening O which opens into the welded end of a isolation device, that is to say in the configuration of Figure 10.
- the control device of the fluid passage 1 is in the form of a sealed casing of substantially cylindrical shape.
- This housing consists of a hollow base em 2 closed by a hollow plug 3A delimiting a cylindrical interior space.
- a first movable shutter member in the form of a valve 4, which can sealingly close the expansion opening O, so that the fluid passage is prohibited, in one sense as in the other.
- valve 4 In an intermediate position (for example that of Figure 4A), the valve 4 allows the passage of pressurized fluid from the inside of the BP line to the inner space E of the shirt C.
- the valve 4 is biased downwards, that is to say towards the inside of the pipe BP, by a spring 8 which is fixed to the inner wall of the plug 3A.
- the valve, or piston, 4 is vertically movable along an axis perpendicular to the longitudinal axis X-X 'of the BP line, as illustrated in FIG.
- the base em 2 is screwed into the wall of the pipe, or "casing", BP.
- the seal between the base 2 and the pipe BP is ensured, for example, by a conventional product of the trade which seals the threads and hardens after tightening (for example, a composition which hardens in the absence of oxygen, said composition with anaerobic curing).
- the base em 2 which is shown alone in FIG. 4B, is machined so as to present a zone of rupture or brittleness (in the form of weak points) which is intended to be broken under a high pressure differential. More specifically, the base 2 is of hollow cylindrical shape and comprises an upper portion 201 breakable, a lower portion 206 and a central portion 204, the latter two portions being delimited on the outer surface of the base 2 by a flange 205 non-continuous circular.
- the breakable zone comprises three oblong 202 lumens formed in the wall of the base 2 between the upper portion 201 and the central portion 204.
- These light-diffusers 202 extend in a plane perpendicular to the longitudinal axis. of the base 2 and are separated by material links 203 of small width / section which form break points, or weak points, intended to break under a high pressure differential of predetermined value.
- the valve 4 comprises three parts, namely a cylindrical first end 41 with a diameter greater than a second cylindrical end 43, the two ends being connected by a cylindrical central portion 42 with a diameter greater than the diameter. first end 41 cylindrical.
- the first cylindrical end 41 of the valve 4 is integral with a cylindrical spiral spring 8 and is housed in the latter.
- the spring 8 is further secured to the plug 3A.
- the second cylindrical end 43 of the valve 4 is slidably guided in a cylindrical housing 132 formed in the base of a second closure member, hereinafter called base 13.
- the base 13 which is cylindrical in shape, is mounted in the em base 2 and is fixed, by its upper part, to the base 2 by at least one weld which is implemented above the breaking points 203 of the base 2, on the inner wall of the upper portion 201.
- the weld or welds (tent) to block the translation of the base 13 relative to the base 2
- connection of the base 13 in the base 2 may be envisaged, particularly by gluing.
- the base 13 comprises an inlet orifice 131 of the annular fluid which is disposed in the base of the base 13, around the housing 132.
- the inlet orifice 131 is connected to the inside of the pipe BP. It is noted that the outside diameter and the height of the base 13 are slightly smaller than the inside diameter and the height respectively of the em base 2.
- a ring 9 forming a stop is screwed into the upper part of the base 13.
- the inner part 92 of the ring 9 defines a fluid passage, called an outlet orifice, in which the first cylindrical extremity 41 of the valve 4 moves.
- central portion 42 of the valve 4 is adapted to move in the inner central portion 91 of the base 13, which forms a fluid passage.
- the central portion 42 of the valve 4 is adapted to abut against one face of the ring 9, defining a first seat, so as to close the outlet orifice 92 or against the base of the base 13, defining a second seat, so as to close the inlet port 131.
- the central portion 42 may further take at least one open intermediate position between these two closed positions where the valve 4 is "closed".
- An annular seal 5 is bonded in an annular housing of the central portion 42 of the valve 4 so that even when a large flow of fluid passes into the control device 1, the seal 5 is not expelled from his dwelling.
- FIG. 5A The inflation or expansion phase of the sleeve C of this control device 1 is illustrated in FIG. 5A.
- a predetermined pressure PI of the fluid is reached in the BP direction, the valve 4 opens.
- the central portion of the valve 4 is located between the base 13 and the stop 9, at a distance from these two elements.
- the fluid (illustrated schematically by arrows) can pass from the inside of the BP pipe to the inner space E of the chimney (not shown) through the inlet port 131, then the fluid passages 91, 92, 93 and finally the outlet port 94, the latter communicating with the interior space E of the chimney (not shown).
- the flow of fluid in the control device 1 can create a large loss of pressure.
- the base 2 is dimensioned to resist this pressure drop. More precisely, the breaking points 203 are dimensioned so as not to break when subjected to this pressure drop.
- the purge phase is illustrated in Figure 5B.
- the valve 4 moves downwardly sliding under the effect of the spring 8 (that is to say towards the base of the base 13), and closes.
- the central portion 42 of the valve 4 is pressed against the base of the base 13 thus closing the inlet orifice 131 sealingly through the seal 5 (this is the second closed position of the valve 4).
- the large volume under pressure in the BP line released by the rupture of the path C, causes a large increase in the flow of fluid at the passage of the valve 4.
- a predetermined threshold " which is for example equal to 1001 / m in
- the pressure drop the passage of the valve 4 is sufficient to exceed the force of the spring 8 and come close the valve 4, as illustrated in Figure 5C.
- valve 4 moves upwardly sliding (that is to say towards the ring 9) and its central portion 42 is pressed against the ring 9 em fishing, or at least minimizing , the passage of the fluid from the passage 91 to the outlet orifice 92, and therefore from the BP line to the sleeve C, as shown by the arrows of FIG. 5C.
- the valve 4 is then in its first closed position which is not, in this example, completely sealed because any leakage would be minimal compared to the flow of fluid flowing through the BP pipeline (it can be provided a seal to optimize sealing however).
- FIGS. 5D and 5E illustrate the activation of the locking function in the closed position of the valve 4 via the base 13, when the jacket C is broken.
- valve 4 is in the closed position, this position being illustrated in FIG. 5C, if the pressure in the LP line exceeds a predetermined threshold (typically between 50 to 100 bar) to break the breaking points 203 of the valve. base 2 (arrows of Figure 5D), then the base 13 disengages from the base 2 and is pushed upwardly (that is to say towards the plug 3A) under the effect of the pressure ( Figure 5E). Note that the upper portion 201 of the base 2 is disengaged from the latter but remains secured to the base 13 once the breaking points 203 are broken.
- a predetermined threshold typically between 50 to 100 bar
- the predetermined pressure typically between 50 and 100 bar
- the ring 9 being integral with the base 13 which is moves upwards, the central portion 42 of the valve 4 is no longer in contact with the ring 9 but comes into contact with the base of the base 13 thus closing the inlet orifice 131, the seal being provided by the intermediate joints 5 and 6 ( Figure 5E).
- This base 13 thus constitutes a locking element which prevents the return of the valve 4 to its open position, in case of rupture of the jacket C.
- Figure 5F illustrates the purge phase.
- the spring 8 pushes the valve 4 and the base 13, which is now mobile, down (that is to say to the BP line).
- the central portion 42 of the valve 4 is always in contact with the base of the base 13 thus closing the inlet orifice 131, the sealing being ensured during this movement by the joints 5 and 6.
- the assembly formed by the valve 4 and the base 13 is moved, by pressure, in sliding in the em base 2 until to come into abutment against the plug 3A, the seal being permanently ensured by the seals 5 and 6.
- the spring 8 is dimensioned so that the valve 4 keeps a sealed contact with the base of the base 13 during the movement of these two parts upwards (that is to say towards the stopper 3A).
- the fluid from the BP line can not pass from the inlet port 131 to the fluid passage 91.
- control device for the fluid passage, or valve 11, is also integrated in the welded extremity 110 of an isolation device. that is, in the configuration of FIG.
- the control device of the fluid passage, or valve, 11 is substantially cylindrical in shape and comprises a hollow base em 12 closed by a hollow plug 13A delimiting a sealed or quasi-sealed cylindrical inner space.
- the em base 12 is screwed into the wall of the pipe, or "casing" BP.
- the first cylindrical end 141 of the valve 14 is integral with a spring 18 and is housed in the latter.
- the spring 18 is further secured to the plug 13A.
- the cylindrical second end 143 of the valve 14 is slidably guided in a cylindrical housing 1132 formed in the base of a second closure member, called a base 113.
- the base 113 which is cylindrical in shape, is fixedly mounted in the housing. 12 and comprises an inlet 1131 of the annular fluid which is disposed in the base of the base 113 around the housing 1132.
- the inlet 1131 is connected to the inside of the BP pipe. It is noted that the outside diameter and the height of the base 113 are slightly smaller than the inside diameter and the height respectively of the base 12.
- the two cylindrical ends 141, 143 of the valve 14 are connected by a cylindrical central portion 142.
- a glue of the trade makes it possible to block the translation of the base 113 relative to the base 12, this glue being applied in the game 112 formed between the base em 12 and the base 113.
- two seals 17 whose function is to prevent liquid glue from flowing into the game 112 are placed between the base 12 and the base 113 (the adhesive remaining liquid several hours after application).
- a ring-shaped seal 15 is glued in an annular housing of the central portion 142 of the valve 14 so that even when a large flow of fluid passes into the closure device 11, the seal 15 is not expelled. of his dwelling.
- a ring 19 forming a seat for the valve 14 is screwed into the upper part of the base 113.
- the fluid can pass from the inside of the BP line to the chimney (not shown) through the inlet port 1131 and then communication spaces. 191, 192, 193 and finally the port of exit 194, the latter communicating with the interior space of the shirt.
- FIG. 9A The inflation or expansion phase of the liner of the isolation device is illustrated in FIG. 9A.
- the valve 14 opens.
- the central portion of the valve 14 is located between the base 113 and the ring 19, substantially equidistant from these two elements.
- the fluid flows from the inlet port 1131 connected to the inside of the BP line to the outlet port 194 connected to the line C. It is noted that the base 113 is fixedly mounted in the base 12.
- the clearance 112 between the base 12 and the base 113, the width and the diameter of the ring of adhesive applied in the game 112 (to block the translation of the base 113 relative to the base 12), and the shear resistance of this glue are dimensioned to withstand this loss of load and avoid shearing of the ring of glue (and thus the displacement of the base 113 relative to the base 12).
- the purge phase is illustrated in Figure 9B.
- the valve 14 slidably moves downward (it closes under the effect of the spring 18), its central portion 142 coming to press against the base 113 then closing the orifice 1131 inlet sealingly through the seal 15.
- a pressure close to the end inflation pressure is kept inside the liner.
- the fluid from the chimney can not pass through the BP line.
- the expandable sleeve breaks during the filling phase (this phase is illustrated in FIG. 9A)
- the im bearing volu me under pressure in the BP line, released by the rupture of the folder will cause a strong increasing the flow rate at the passage of the valve 14.
- the pressure drop at the passage of the valve 14 is sufficient to exceed the force of the spring 18 and close the valve 14, as illustrated in FIG. 9C.
- the valve 14 moves upwards and comes to press against the ring 19 preventing, or minimizing, the passage of the fluid from the BP line to the shirt as shown by the arrows.
- Figures 9D and 9E illustrate the activation of the valve lock 14 in the closed position.
- a predetermined threshold typically between 50 and 100 bars
- the base 113 disengages from the base 12 and is pushed upwards, that is to say towards the ring 19, by the pressure ( Figure 9E) .
- the pressure for shearing the glue is determined by the width, the diameter of the glue ring, the clearance 112 and the shear strength of the glue.
- the ring 19 being secured to the base 113 which moves upwards, the central portion 142 of the valve
- Figure 9F illustrates the purge phase.
- the spring 18 pushes the valve 14 and the base 113 downwards (that is to say towards the BP line), the valve 14 keeping a tight contact with the base of the base 113. In this movement, the seals 15 and 16 always seal.
- the spring 18 is dimensioned so that the valve 14 keeps a sealed contact with the base 113 during the upward movement, that is to say towards the plug 13A, of these two parts 14, 113 which cooperate .
- FIGS. 7A and 7B A third embodiment of a fluid flow control device, or valve, is illustrated in FIGS. 7A and 7B.
- the operation of the valve 21 is substantially identical to that of the valves 1, 11 previously described.
- the valve 21 comprises in the same way a base 22, a valve 24, a base 213 and a u ring 29 which is fixedly mounted in the base 213.
- a ring 295 having in its center an opening 2951 for the passage of the upper part 241 of the valve 24, and which is provided, on its periphery, spring blades 2952 spaced apart from each other.
- the ring 295 is fixed on the top of the base 22, shirt side, the ends of the spring blades 2952 being "clipped" in a groove machined in the em base 22.
- the length and the thickness of the spring blades 2952 as well as the depth of the groove of the base 12 are calibrated to break at a determined pressure.
- the seal 25 is here of the type of flange seal.
- shear pins 396 are provided which are arranged (by screwing, for example) in radial holes formed around the periphery of the base 32. These shear pins 396 are integral with the base 313. The diameter and the material of the shear pins 396 are calibrated to break at a predetermined pressure.
- the fluid flow control device, or valve, according to the invention thus allows:
- the pumps used are pumps which are used for the injection of fluid during the drilling or cementing phases, and which therefore have a high flow rate (greater than 100 liters / m in, the expansion volume of a jacket being About 3 to 30 liters). This high flow rate must not close the valve during the expansion phase;
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1463217A FR3030610B1 (en) | 2014-12-23 | 2014-12-23 | DEVICE FOR ISOLATING A PART OF A WELL OR A CHANNEL AND CONTROL MEANS IMPLEMENTED IN SUCH A DEVICE FOR ISOLATION |
PCT/EP2015/081080 WO2016102620A1 (en) | 2014-12-23 | 2015-12-22 | Device for insulating a portion of a well or a pipeline, and control means implemented in such an insulation device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3237723A1 true EP3237723A1 (en) | 2017-11-01 |
EP3237723B1 EP3237723B1 (en) | 2018-09-26 |
Family
ID=52692868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15819827.5A Not-in-force EP3237723B1 (en) | 2014-12-23 | 2015-12-22 | Device for insulating a portion of a well or a pipeline, and control means implemented in such an insulation device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3237723B1 (en) |
FR (1) | FR3030610B1 (en) |
WO (1) | WO2016102620A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3776308A (en) * | 1971-08-17 | 1973-12-04 | Lynes Inc | Safety valve arrangement for controlling communication between the interior and exterior of a tubular member |
US4586526A (en) * | 1983-11-18 | 1986-05-06 | N. J. McAllister Petroleum Industries, Inc. | Arrangement for controlling communication between a tubular member and an inflatable element supported on the tubular member in a well bore |
EP2607613A1 (en) * | 2011-12-21 | 2013-06-26 | Welltec A/S | An annular barrier with a self-actuated device |
FR3003891B1 (en) * | 2013-03-27 | 2015-04-03 | Saltel Ind | DEVICE FOR CONTROLLING AND INSULATING AN EXPANSIBLE SHAPE-SHAPED TOOL FOR INSULATING AREAS IN A WELL |
-
2014
- 2014-12-23 FR FR1463217A patent/FR3030610B1/en not_active Expired - Fee Related
-
2015
- 2015-12-22 WO PCT/EP2015/081080 patent/WO2016102620A1/en active Application Filing
- 2015-12-22 EP EP15819827.5A patent/EP3237723B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
FR3030610A1 (en) | 2016-06-24 |
EP3237723B1 (en) | 2018-09-26 |
FR3030610B1 (en) | 2017-01-13 |
WO2016102620A1 (en) | 2016-06-30 |
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