US20130319654A1 - Plugging device - Google Patents
Plugging device Download PDFInfo
- Publication number
- US20130319654A1 US20130319654A1 US13/993,760 US201113993760A US2013319654A1 US 20130319654 A1 US20130319654 A1 US 20130319654A1 US 201113993760 A US201113993760 A US 201113993760A US 2013319654 A1 US2013319654 A1 US 2013319654A1
- Authority
- US
- United States
- Prior art keywords
- packer
- supporting
- supporting device
- packer supporting
- inner packer
- 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.)
- Abandoned
Links
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 description 7
- 238000004873 anchoring Methods 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000000034 method Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
- E21B33/1216—Anti-extrusion means, e.g. means to prevent cold flow of rubber packing
Definitions
- the present invention relates to a plugging device.
- plugging devices for plugging of hydrocarbon well pipes are known.
- U.S. Pat. No. 7,178,602 it is shown a plugging device having an anchoring device with gripping elements for anchoring the plugging device to the inner casing of the well pipe to prevent movement of the plugging device.
- the plugging device also comprises an expandable packer element for sealing the well pipe.
- the packer element is supported by a link connection for compressing and thereby expanding the packer element radially.
- a so-called high expansion plugging device has a relatively narrow diameter in retracted position, allowing the plugging device to pass restrictions in the well pipe. At the same time, it has a relatively large diameter in expanded position to seal the well pipe.
- plugging devices which may withstand high pressures and high temperatures for a long time. This puts a lot of stress to the packer element being compressed during the sealing period. Moreover, it is a requirement that the plugging device is retrievable from the well after use. Often there is a risk that the packer element becomes deformed during the expansion, which may cause problems with retrieving the plugging device past narrow restrictions in the well pipe.
- the plugging device comprises an expandable packer element for sealing against the well pipe, where the packer element is supported by radially expanding seal elements.
- the seal elements are gliding on respective tapering surfaces of pressure rings located axially on respective sides of the packer element. The pressure rings are moved axially towards each other in order to radially expand the packer element.
- the object of the invention is to provide a plugging device which is capable of withstanding a high pressure and a high temperature for a long time and still being able to be retracted after use.
- one object is to provide a plugging device comprising an inner packer body which provides a pressure tight sealing against an outer packer body or against other outer parts of the plugging device.
- the present invention is related to a plugging device comprising a packer device for pressure tight sealing of a pipe, the packer device comprising:
- the inner packer body is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second inner packer supporting devices and.
- the inner packer body is compressed against the radial inner surface of the outer packer body or the first or second outer packer supporting device in its radially expanded position.
- the first inner packer supporting device comprises a first cone having a tapering surface and a base;
- the second inner packer supporting device comprises a second cone having a tapering surface and a base; where the inner packer body is provided between the bases of the first and second cones.
- connection device for radial orientation of the first inner packer supporting device in relation to the second inner packer supporting device.
- connection device is limiting the axial movement between the first inner packer supporting device and the second inner packer supporting device.
- connection device comprises a threaded bolt inserted through an opening of the first inner packer supporting device and fastened to a threaded opening of the second inner packer supporting device.
- a sliding surface is provided on the first and second packer supporting device for sliding up and down the tapering surface of the first or second inner packer supporting device during the movement between the radially expanded position and the radially retracted position.
- FIGS. 1 and 2 illustrates a perspective view of one embodiment of the plugging device in retracted and expanded position respectively;
- FIGS. 3 and 4 illustrates a side view of the packer device of FIG. 1 in retracted and expanded position respectively;
- FIGS. 5 and 6 illustrates a perspective view of parts of the packer device of FIGS. 3 and 4 respectively;
- FIG. 7 illustrates a side view of the packer device in expanded position
- FIG. 8 illustrates a front supporting device with a packer body and a supporting arm
- FIG. 9 illustrates a front supporting device of FIG. 8 without the packer body
- FIG. 10 illustrates rear supporting device and its supporting arm
- FIG. 11 illustrates the rear supporting device of FIG. 10 ;
- FIG. 12 a illustrates the configuration of the rear supporting devices of the first packer supporting device in the retracted position
- FIG. 12 b is similar to FIG. 12 a , where one front supporting device is provided;
- FIG. 12 c is similar to FIGS. 12 a and 12 b , where all front supporting devices are provided;
- FIG. 13 a illustrates the configuration of the rear supporting devices of the first packer supporting device in the expanded position
- FIG. 13 b is similar to FIG. 13 a , where one front supporting device is provided;
- FIG. 13 c is similar to FIGS. 13 a and 13 b , where all front supporting devices are provided;
- FIG. 14 illustrates a side view of some of the front and rear supporting elements of the first and second packer supporting devices in the expanded position
- FIG. 15 illustrates a perspective view of all the front and rear supporting elements of the first and second packer supporting devices in the expanded position
- FIG. 16 illustrates an alternative embodiment of a packer body
- FIG. 17 illustrates an alternative embodiment of a front supporting device, a supporting arm and a packer body.
- the plugging device 1 comprises an anchoring device 2 , a connection interface 3 and a packer device 4 .
- the anchoring device 2 comprises gripping devices for fixation of the plugging device 1 to an inner wall of a pipe (not shown). It should be noted that fluid is allowed to pass the plugging device when the anchoring device 2 is set, i.e. in its expanded position shown in FIG. 2 .
- the anchoring device 2 is considered known for a person skilled in the art, for example from the abovementioned publication U.S. Pat. No. 7,178,602 and will therefore not be described here in detail.
- connection interface 3 is provided for connection to a setting tool for bringing the plugging device from its retracted or “run” position to its expanded or “set” position and for connection to a retrieval tool for retrieving the plugging device again after use.
- the connection interface 3 , the setting tool and the retrieval tool are also considered known for a skilled person, and will not be explained in detail here either.
- the packer device 4 is provided for pressure tight sealing of the pipe. That is, no fluid is supposed to pass the packer device 4 in the annular space between the outer surface of the plugging device and the inner surface of the wall pipe.
- the initial design requirement for the plugging device 1 is that it has to pass a restriction with machined inner diameter of 4.125′′ (i.e. in retracted position) and is to be set in a 7′′35 ppf casing.
- the packer device 4 according to the present invention is to withstand a pressure difference of 5000 psi at a temperature of 170° in the set position.
- this initial design requirement does not prevent using the principles of the invention for designing a plugging device for other types of pipes with other diameters, temperatures and pressures.
- the packer device 4 comprises a first outer packer supporting device 20 and a second outer packer supporting device 22 .
- An outer packer body 50 is provided axially between the first outer packer supporting device 20 and the second outer packer supporting device 22 , where the outer packer 50 is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second outer packer supporting devices 20 , 22 . This will be explained more in detail below.
- the packer device 4 further comprises a first inner packer supporting device 12 and a second inner packer supporting device 14 .
- An inner packer body is 15 provided axially between the first inner packer supporting device 12 and the second inner packer supporting device 14 .
- the inner packer body 15 is provided axially displaced in relation to the outer packer body 50 when the outer body is in the radially retracted position, as shown in FIG. 3 . As shown in FIG. 7 , some parts of the outer packer body 50 (packer elements 50 a ) are provided on one side of the inner packer body 15 and some parts of the outer packer body 50 is provided on the second side of the inner packer body 15 .
- the inner packer body 15 is provided radially inside the outer packer body 50 when the outer body is in the radially expanded position, as shown in FIG. 4 and FIG. 7 .
- the inner packer body 15 is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second inner packer supporting devices 12 and 14 .
- FIG. 7 it is shown that the inner packer body 15 is compressed against a radial inner surface of the outer packer body 50 or against a radial inner surface of the first or second outer packer supporting device 20 , 22 in its radially expanded position. Hence, one continuous seal is provided in the well flow.
- the first inner packer supporting device 12 comprises a first cone having a tapering surface 12 a and a base 12 b .
- the second inner packer supporting device 14 comprises a second cone having a tapering surface 14 a and a base 14 b .
- FIG. 3 it is shown that the base 12 b of the first cone is faced towards the base 14 b of the second cone.
- the inner packer body 15 is provided between the bases 12 b , 14 b of the first and second cones.
- a connection device 16 may be provided for radial orientation of the first inner packer supporting device 12 in relation to the second inner packer supporting device 14 .
- the connection device 16 may also be used to limit the axial movement between the first inner packer supporting device 12 and the second inner packer supporting device 14 .
- the connection device 16 comprises a threaded bolt 17 inserted through an opening 18 of the first inner packer supporting device 12 and fastened to a threaded opening 19 of the second inner packer supporting device 14 .
- a sliding surface is provided on the first and second packer supporting device 20 , 22 for sliding up and down the tapering surface 12 a , 14 a of the first or second inner packer supporting device 12 , 14 during the movement between the radially expanded position and the radially retracted position.
- the packer device 4 comprises a cone device 10 , a first outer packer supporting device 20 provided on a first side of the cone device 10 and a second a second outer packer supporting device 22 provided on a second side of the cone device 10 , opposite of the first side in the longitudinal direction of the plugging device 1 as shown in FIG. 3 .
- the cone device 10 comprises the abovementioned first cone 12 and second cone 14 , each having their base 12 b , 14 b faced towards each other and each comprising a tapering surface 12 a , 14 a .
- the base 12 b is parallel to the base 14 b and that the bases 12 b , 14 b both are perpendicular to the longitudinal direction of the plugging device.
- the base 12 b of the first cone 12 is circular.
- the tapering surfaces 12 a , 14 a are straight.
- the cones 12 , 14 with an increasingly tapering surface, or a decreasingly tapering surface i.e. the tapering surface will be curved.
- the first cone 12 and the second cone 14 is displaceable in an axial direction with respect to each other.
- a cone packer element 15 is provided between the base of the first cone 12 and the base of the second cone 14 .
- the connection device 16 is provided for radial orientation of the first cone 12 in relation to the second cone 14 .
- the connection device 16 limits the axial displacement of the first cone 12 in relation to the second cone 14 .
- connection device 16 limits the maximum distance between the base of the first cone 12 and the base of the second cone 14 .
- the compression of the cone packer element limits the minimum distance between the base of the first cone 12 and the base of the second cone 14 .
- the connection device 16 may also be used to limit the minimum distance between the base of the first cone 12 and the base of the second cone 14 .
- the connection device 16 comprises at least one screw (see FIG. 7 ), or by means of other types of connection means 16 well known for a person skilled in the art.
- the first and second packer supporting devices 20 , 22 of the present embodiment are equal to each other.
- Each of the first and second packer supporting devices comprises supporting arms 24 having a first end 24 a movably or pivotably connected to the plugging device 1 and a second end 24 b movably or pivotably connected to either a front supporting element 30 or a rear supporting element 40 . It should be noted that it would be possible to connect the second end 24 b of the arm 24 to the front supporting element 30 or the rear supporting element 40 in a fixed way, i.e. they are not movable or pivotable in relation to each other.
- FIG. 8 it is shown a supporting arm 24 having its second end 24 b pivotably connected to a front supporting element 30 .
- FIG. 10 it is shown a supporting arm 24 having its second end 24 b pivotably connected to a rear supporting element 40 .
- the supporting arm 24 can for example be similar to those described in U.S. Pat. No. 7,178,602.
- the supporting arms are therefore considered known for a skilled person, and will not be described in detail herein.
- the supporting arms form a continuous outer surface around the plugging device in the retracted position and during expansion to the expanded position, thereby preventing debris etc in the well flow to block the expansion/retraction process. This can for example be seen in FIGS. 5 and 6 .
- the pivotation of the supporting arm 24 with respect to the plugging device 1 and the front or rear supporting element 30 or 40 may be provided by a pivotation bolt or any other suitable pivotation mechanism or movable mechanism allowing the supporting arm 24 to move radially out from the plugging device 1 .
- a sliding surface is provided on the first and second packer supporting device 20 , 22 .
- the sliding surface may comprise several sliding surfaces which may be provided on the front supporting element 30 and/or rear supporting element 40 .
- sliding surfaces could be provided on other parts of the first and second packer supporting devices 20 , 22 , for example as a part of the supporting arms 24 .
- the sliding surface is provided for sliding up and down the tapering surface 12 a , 14 a of the first or second cone, i.e. the sliding surface and the tapering surfaces provides that an axial movement of the first and second packer supporting devices 20 , 22 causes a radial movement of the front supporting elements 30 and the rear supporting elements 40 .
- the front supporting element 30 will now be described with reference to FIG. 9 .
- the front supporting element 30 comprises a sliding surface 31 for sliding up and down the tapering surface 12 a , 14 a of the first or second cone, depending on whether the front supporting element 30 is a part of the first or second packer supporting device 20 or 22 respectively.
- the front supporting element 30 further comprises a front surface 32 for supporting a packer body generally denoted with reference number 50 .
- the front surface 32 is faced towards the base of the first and second cones 12 , 14 , for example as shown in the retracted position in FIG. 5 .
- the front surface 32 is substantially parallel to the base of the first and second cones 12 , 14 , both in the retracted position and in the expanded position.
- the front surface 32 is also faced towards the plane formed by the base of the first and second cones 12 , 14 in the expanded position, as shown in FIG. 6 .
- the front surface 32 of the first packer supporting device 20 is faced towards the plane formed by the base of the second cone 14 and the front surfaces 32 of the second packer supporting device 22 is faced towards the plane formed by the base of the first cone 12 , both in the retracted and in the expanded position.
- the front surface 32 is always perpendicular to the longitudinal direction of the plugging device, i.e. both during retraction and expansion.
- the front surface 32 is at least partially curved.
- the front supporting element 30 also comprises a radial outer surface 33 .
- the radial outer surface 33 is curved, the curve preferably having a radius R (see FIG. 13 c ) corresponding to the radius of the casing the plugging device is set in.
- the front supporting element 30 also comprises a rear surface 34 provided on the rear side of the front surface 32 .
- the rear surface 34 is substantially planar.
- a supporting body 35 is provided on the rear surface 34 .
- the supporting body 35 is substantially T-shaped, having a stem 35 a and a cross bar 35 b .
- a connection interface 36 for pivotably connection to the supporting arm 24 is provided as a part of the cross bar 35 b , see for example FIG. 14 .
- the rear supporting element 40 will now be described with reference to FIG. 11 .
- the rear supporting element 40 also comprises a sliding surface 41 for sliding up and down the tapering surface 12 a , 14 a of the first or second cone, depending on whether the rear supporting element 40 is a part of the first or second packer supporting device 20 or 22 respectively.
- the rear supporting element 40 further comprises a substantially planar front surface 42 .
- the front surface 42 is provided for supporting the rear surface 34 of the front supporting element 30 both in the retracted and expanded position.
- the rear surface 42 is also faced towards the base of the first and second cones 12 , 14 , for example as shown in the retracted position in FIG. 5 .
- the rear surface 42 is substantially parallel to the base of the first and second cones 12 , 14 , both in the retracted position and in the expanded position.
- the rear surface 42 is also faced towards the plane formed by the base of the first and second cones 12 , 14 in the expanded position, as shown in FIG. 6 .
- the rear surface 42 of the first packer supporting device 20 is faced towards the plane formed by the base of the second cone 14 and the front surfaces 32 of the second packer supporting device 22 is faced towards the plane formed by the base of the first cone 12 , both in the retracted and in the expanded position.
- the tapered surface 12 a , 14 a of the cones are straight, the rear surface 42 is always perpendicular to the longitudinal direction of the plugging device, i.e. both during retraction and expansion.
- the rear supporting element 40 also comprises a radial outer surface 43 .
- the radial outer surface 43 is curved, the curve preferably having a radius R (see FIG. 13 c ) corresponding to the radius of the casing the plugging device is set in.
- R radius
- the front and rear supporting elements 30 , 40 forms a “torus”-like body having a circular radial outer surface.
- the rear supporting element 40 also comprises a rear surface 44 provided on the rear side of the front surface 42 .
- a supporting body 45 is provided on the rear surface 44 .
- a connection interface 46 for pivotably connection to the supporting arm 24 is provided on the rear surface 44 , see for example FIG. 14 .
- FIG. 12 a - c it is shown that nine rear supporting elements 40 are providing a “torus”-like ring when arranged next to each other. Moreover, the sliding surfaces 41 of the rear supporting elements 40 may provide a continuous contact surface towards the cone 12 or 14 . In the arrangement shown in FIG. 12 a it is shown that a slit 49 is formed between two adjacent rear supporting elements 40 . The shape of the slit 49 between two such rear supporting elements 40 is configured to receive the stem 35 a of the front supporting element 30 , as shown in FIG. 12 b.
- FIG. 12 c all nine slits 49 have received one front supporting element 30 .
- the front surface 42 of one rear supporting element 40 is provided at lest partially behind the rear surfaces 34 of two adjacent front supporting elements 30 in the retracted position.
- the front surfaces 42 of the rear supporting elements 40 are supporting the rear surfaces 34 of the front supporting elements 30 in the retracted position.
- FIG. 12 c it is shown that the sliding surfaces 31 of the front supporting elements 30 may form a substantially continuous contact surface towards the cone 12 or 14 .
- the radial outer surfaces 33 , 43 of the front and rear supporting elements 30 and 40 together forms a substantially continuous radial outer surface as illustrated in FIG. 13 c by the dashed line B.
- every second supporting arm 24 of the first supporting device 20 is pivotably connected to the respective front supporting elements 30 and every second supporting arm 24 is pivotably connected to the respective rear supporting elements 40 . This is also the case for the second supporting device 22 .
- first and second packer supporting device 20 , 22 are configured so that each front surface 32 of the front supporting elements 30 of the first outer packer supporting device 20 is faced towards a front surface 42 of the rear supporting elements 40 of the second outer packer supporting device 22 in the expanded position. Consequently, each front surface 32 of the front supporting elements 30 of the second outer packer supporting device 22 is faced towards a front surface 42 of the rear supporting elements 40 of the first outer packer supporting device 20 in the expanded position.
- FIG. 14 it is shown that the straight dashed line D is going through both the centre of the front surface 32 of the front supporting element 30 and the centre of the front surface 42 of the rear supporting element 40 .
- the outer packer body 50 comprises packer elements 50 a provided on the front surface 32 of each front supporting element 30 .
- the packer element 50 a is made of a ductile material, such as an elastomeric material and/or a rubber material etc, which may withstand the pressure and temperature required for the well pipe being sealed.
- the packer element 50 a may be molded onto the front supporting element 30 .
- the radial inner part 51 of each packer element 50 a is protruding in an axial direction in relation to the radial outer part 52 (see FIG. 8 ). In this way the radial inner part 51 will be pressed downwards toward the cone device in the expanded position.
- the plugging device may be provided with a guiding system for preventing relative rotation between the first and second packer supporting devices 20 , 22 during expansion and retraction.
- a guiding pin 28 provided in a guiding groove (not shown) preventing a relative rotation between the first and second packer supporting devices 20 , 22 .
- the packer device 4 is initially in its retracted position.
- a retracting device 60 (see FIG. 7 ), for example a spring etc may be provided for bringing the first and second packer supporting devices 20 , 22 back to their retracted position.
- the retracting device 60 is in one end fixed to the supporting arm 24 and in the other end to the respective first or second part 1 a , 1 b of the plugging device, as shown in FIG. 7 . It should be noted that the packer element 50 a is not stressed in the retracted position.
- a first part 1 a of the plugging device 1 is pressed towards a second part 1 b of the plugging device (see FIG. 7 ), as is known for a skilled person.
- the guiding system prevents a relative rotation between the first part 1 a and the second part 1 b . Consequently, the sliding surfaces 31 , 41 of the front and rear supporting elements 30 , 40 starts to slide on the tapering surfaces 12 a , 14 a of the cones 12 , 14 as they pivot with respect to the supporting arms 24 .
- the packer element 50 a In the expanded position, the packer element 50 a is pressed between the front surface 32 of the front supporting elements 30 and the front surface 42 of the rear supporting elements 40 .
- the front surface 42 of the rear supporting element 40 is configured to support a packer element 50 a of the opposite packer supporting device 20 , 22 when in the expanded position.
- the packer elements 50 a form a continuous packer around the packer device 4 , where every second packer element 50 a is fixed to the first outer packer supporting device 20 and every second packer element 50 a is fixed to the second outer packer supporting device 22 .
- FIG. 15 it is shown that the front surfaces 32 , 42 together have a form similar to a circular ring.
- This circular surface forms an extrusion barrier surface for the outer packer body 50 .
- the outer packer body 50 will form a seal towards the pipe in the expanded position, and the extrusion barrier surface prevents the extrusion of the outer packer body 50 .
- the expansion will also provide that the first cone 12 is displaced towards the second cone 14 , thereby providing a compression of, and a radial expansion of, the cone packer element 15 .
- the cone packer element 15 will be pressed towards the outer packer body 50 along its radial periphery.
- a continuous ductile seal is provided in the pipe by the cone packer element 15 and the outer packer body 50 .
- FIG. 14 the central line between the front and rear supporting elements of the respective first and second supporting devices 20 , 22 is illustrated by the dashed line C.
- the curved shape of the front surface 32 of the front supporting elements 30 provides that the opening for the outer packer body 50 between the first supporting device 20 and the second supporting device 22 is approximately the same around the periphery. Hence, the stress on the outer packer body 50 is substantially similar around the periphery.
- the first part 1 a of the plugging device 1 is pulled away from the second part 1 b of the plugging device 1 , as is familiar for a skilled person.
- the sliding surfaces 31 , 41 will now slide down on the tapering surfaces of the cones 12 , 14 due to the force applied by the retracting device 60 , thereby pressing the supporting arms 24 radially inwards.
- the first part 1 a is pulled away from the second part 1 b until the maximum distance between the base of the first cone 12 and the base of the second cone 14 is reached due to the connection device 16 . Then the plugging device 1 has reached the retracted position and may be retrieved from the well pipe.
- the outer packer body 50 comprised several packer elements 50 a .
- the outer packer body 50 may be provided as one packer element 50 b .
- the packer element 50 b comprises one continuous packer which is folded to allow it to expand and retract.
- the packer element 50 b comprises nine folds 53 which may be fixed to the respective nine front supporting elements 30 of one of the packer supporting devices 20 , 22 .
- the outer packer body 50 could comprise two or more such packer elements 50 b , each fixed to each other and/or the front supporting elements 30 of the first and second packer supporting device 20 , 22 respectively.
- the outer packer body 50 comprises several packer elements 50 c .
- the packer elements 50 c is, as the packer elements 50 a described above, made of a ductile material. However, in this embodiment each packer element 50 c is connected to the front surface 32 of the front supporting element 30 by means of a sliding dove-tail joint 54 .
- the packer element 50 c also provided with pieces 55 of a plastic deformable material, a more rigid material than the ductile material. As shown in FIG. 17 , the part of the packer element 50 c which forms the dovetail joint is made of the plastic deformable material.
- the dovetail joint 54 allows the packer element 50 c to slide radially out towards the inner surface of the pipe in the expanded position, to improve the seal in cases where the pipe has been deformed.
- the dove-tail joint 54 comprises stopping means to limit the radial movement of the packer element 50 c in relation to the front supporting element 30 .
- plugging devices could also be used for plugging other types of pipes, for example water pipes etc.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
- Earth Drilling (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Joints Allowing Movement (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Buffer Packaging (AREA)
Abstract
The invention relates to a plugging device (1) comprising a packer device (4) for pressure tight sealing of a pipe. The packer device (4) comprises a first outer packer supporting device (20), a second outer packer supporting device (22) and an outer packer body (50) provided axially between the first packer supporting device (20) and the second packer supporting device (22). The outer packer (50) is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second outer packer supporting devices (20, 22). The packer device 4 further comprises a first inner packer supporting device (12), a second inner packer supporting device (14) and an inner packer body (15) provided axially between the first inner packer supporting device (12) and the second inner packer supporting device (14). The inner packer body (15) is provided radially inside the outer packer body (50) when the outer body is in the radially expanded position. The inner packer body (15) is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second inner packer supporting devices (12) and (14).
Description
- The present invention relates to a plugging device.
- Several types of plugging devices for plugging of hydrocarbon well pipes are known. In U.S. Pat. No. 7,178,602 it is shown a plugging device having an anchoring device with gripping elements for anchoring the plugging device to the inner casing of the well pipe to prevent movement of the plugging device. The plugging device also comprises an expandable packer element for sealing the well pipe. The packer element is supported by a link connection for compressing and thereby expanding the packer element radially.
- Another plugging device is known from U.S. Pat. No. 7,290,603. Here an expandable packer element is compressed axially by means of two pressure rings, thereby providing a radial expansion of the packer element. Moreover, radially expandable ring elements are provided in order to improve the support the packer element in the expanded position.
- A so-called high expansion plugging device has a relatively narrow diameter in retracted position, allowing the plugging device to pass restrictions in the well pipe. At the same time, it has a relatively large diameter in expanded position to seal the well pipe.
- In some subsea hydrocarbon well pipes, there is a need for plugging devices which may withstand high pressures and high temperatures for a long time. This puts a lot of stress to the packer element being compressed during the sealing period. Moreover, it is a requirement that the plugging device is retrievable from the well after use. Often there is a risk that the packer element becomes deformed during the expansion, which may cause problems with retrieving the plugging device past narrow restrictions in the well pipe.
- One such high pressure, high temperature plugging device is known from U.S. Pat. No. 7,290,603. The plugging device comprises an expandable packer element for sealing against the well pipe, where the packer element is supported by radially expanding seal elements. The seal elements are gliding on respective tapering surfaces of pressure rings located axially on respective sides of the packer element. The pressure rings are moved axially towards each other in order to radially expand the packer element.
- The object of the invention is to provide a plugging device which is capable of withstanding a high pressure and a high temperature for a long time and still being able to be retracted after use.
- Moreover, one object is to provide a plugging device comprising an inner packer body which provides a pressure tight sealing against an outer packer body or against other outer parts of the plugging device.
- The present invention is related to a plugging device comprising a packer device for pressure tight sealing of a pipe, the packer device comprising:
-
- a first outer packer supporting device;
- a second outer packer supporting device;
- an outer packer body provided axially between the first packer supporting device and the second packer supporting device, where the outer packer is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second outer packer supporting devices. The packer device comprises:
- a first inner packer supporting device;
- a second inner packer supporting device;
- an inner packer body provided axially between the first inner packer supporting device and the second inner packer supporting device, where the inner packer body is provided radially inside the outer packer body when the outer packer body is in the radially expanded position;
- where the inner packer body is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second inner packer supporting devices and.
- In one aspect, the inner packer body is compressed against the radial inner surface of the outer packer body or the first or second outer packer supporting device in its radially expanded position.
- In one aspect, the first inner packer supporting device comprises a first cone having a tapering surface and a base; the second inner packer supporting device comprises a second cone having a tapering surface and a base; where the inner packer body is provided between the bases of the first and second cones.
- In one aspect, a connection device is provided for radial orientation of the first inner packer supporting device in relation to the second inner packer supporting device.
- In one aspect, the connection device is limiting the axial movement between the first inner packer supporting device and the second inner packer supporting device.
- In one aspect, the connection device comprises a threaded bolt inserted through an opening of the first inner packer supporting device and fastened to a threaded opening of the second inner packer supporting device.
- In one aspect, a sliding surface is provided on the first and second packer supporting device for sliding up and down the tapering surface of the first or second inner packer supporting device during the movement between the radially expanded position and the radially retracted position.
- In the following, embodiments of the present invention will be described in detail with reference to the enclosed drawings, where:
-
FIGS. 1 and 2 illustrates a perspective view of one embodiment of the plugging device in retracted and expanded position respectively; -
FIGS. 3 and 4 illustrates a side view of the packer device ofFIG. 1 in retracted and expanded position respectively; -
FIGS. 5 and 6 illustrates a perspective view of parts of the packer device ofFIGS. 3 and 4 respectively; -
FIG. 7 illustrates a side view of the packer device in expanded position; -
FIG. 8 illustrates a front supporting device with a packer body and a supporting arm; -
FIG. 9 illustrates a front supporting device ofFIG. 8 without the packer body; -
FIG. 10 illustrates rear supporting device and its supporting arm; -
FIG. 11 illustrates the rear supporting device ofFIG. 10 ; -
FIG. 12 a illustrates the configuration of the rear supporting devices of the first packer supporting device in the retracted position; -
FIG. 12 b is similar toFIG. 12 a, where one front supporting device is provided; -
FIG. 12 c is similar toFIGS. 12 a and 12 b, where all front supporting devices are provided; -
FIG. 13 a illustrates the configuration of the rear supporting devices of the first packer supporting device in the expanded position; -
FIG. 13 b is similar toFIG. 13 a, where one front supporting device is provided; -
FIG. 13 c is similar toFIGS. 13 a and 13 b, where all front supporting devices are provided; -
FIG. 14 illustrates a side view of some of the front and rear supporting elements of the first and second packer supporting devices in the expanded position; -
FIG. 15 illustrates a perspective view of all the front and rear supporting elements of the first and second packer supporting devices in the expanded position; -
FIG. 16 illustrates an alternative embodiment of a packer body; -
FIG. 17 illustrates an alternative embodiment of a front supporting device, a supporting arm and a packer body. - It is now referred to
FIGS. 1 and 2 , illustrating an embodiment of theplugging device 1. Theplugging device 1 comprises ananchoring device 2, aconnection interface 3 and apacker device 4. - The
anchoring device 2 comprises gripping devices for fixation of the pluggingdevice 1 to an inner wall of a pipe (not shown). It should be noted that fluid is allowed to pass the plugging device when theanchoring device 2 is set, i.e. in its expanded position shown inFIG. 2 . Theanchoring device 2 is considered known for a person skilled in the art, for example from the abovementioned publication U.S. Pat. No. 7,178,602 and will therefore not be described here in detail. - The
connection interface 3 is provided for connection to a setting tool for bringing the plugging device from its retracted or “run” position to its expanded or “set” position and for connection to a retrieval tool for retrieving the plugging device again after use. Theconnection interface 3, the setting tool and the retrieval tool are also considered known for a skilled person, and will not be explained in detail here either. - The
packer device 4 is provided for pressure tight sealing of the pipe. That is, no fluid is supposed to pass thepacker device 4 in the annular space between the outer surface of the plugging device and the inner surface of the wall pipe. It should be noted that the initial design requirement for the pluggingdevice 1 is that it has to pass a restriction with machined inner diameter of 4.125″ (i.e. in retracted position) and is to be set in a 7″35 ppf casing. Moreover, thepacker device 4 according to the present invention is to withstand a pressure difference of 5000 psi at a temperature of 170° in the set position. Of course, this initial design requirement does not prevent using the principles of the invention for designing a plugging device for other types of pipes with other diameters, temperatures and pressures. - It is now referred to
FIGS. 3 , 4 and 7. Here it is shown that thepacker device 4 comprises a first outerpacker supporting device 20 and a second outerpacker supporting device 22. Anouter packer body 50 is provided axially between the first outerpacker supporting device 20 and the second outerpacker supporting device 22, where theouter packer 50 is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second outerpacker supporting devices - The
packer device 4 further comprises a first innerpacker supporting device 12 and a second innerpacker supporting device 14. An inner packer body is 15 provided axially between the first innerpacker supporting device 12 and the second innerpacker supporting device 14. - The
inner packer body 15 is provided axially displaced in relation to theouter packer body 50 when the outer body is in the radially retracted position, as shown inFIG. 3 . As shown inFIG. 7 , some parts of the outer packer body 50 (packer elements 50 a) are provided on one side of theinner packer body 15 and some parts of theouter packer body 50 is provided on the second side of theinner packer body 15. - The
inner packer body 15 is provided radially inside theouter packer body 50 when the outer body is in the radially expanded position, as shown inFIG. 4 andFIG. 7 . - The
inner packer body 15 is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second innerpacker supporting devices - In
FIG. 7 , it is shown that theinner packer body 15 is compressed against a radial inner surface of theouter packer body 50 or against a radial inner surface of the first or second outerpacker supporting device - In the present embodiment, the first inner
packer supporting device 12 comprises a first cone having a taperingsurface 12 a and a base 12 b. In similar way, the second innerpacker supporting device 14 comprises a second cone having a taperingsurface 14 a and a base 14 b. InFIG. 3 , it is shown that the base 12 b of the first cone is faced towards the base 14 b of the second cone. Theinner packer body 15 is provided between thebases - A
connection device 16 may be provided for radial orientation of the first innerpacker supporting device 12 in relation to the second innerpacker supporting device 14. Theconnection device 16 may also be used to limit the axial movement between the first innerpacker supporting device 12 and the second innerpacker supporting device 14. In the present embodiment theconnection device 16 comprises a threadedbolt 17 inserted through anopening 18 of the first innerpacker supporting device 12 and fastened to a threadedopening 19 of the second innerpacker supporting device 14. - A sliding surface is provided on the first and second
packer supporting device surface packer supporting device - The other elements of the
packer device 4 will be described below. It is now referred toFIGS. 3-6 . As mentioned, thepacker device 4 comprises acone device 10, a first outerpacker supporting device 20 provided on a first side of thecone device 10 and a second a second outerpacker supporting device 22 provided on a second side of thecone device 10, opposite of the first side in the longitudinal direction of the pluggingdevice 1 as shown inFIG. 3 . - The
cone device 10 comprises the abovementionedfirst cone 12 andsecond cone 14, each having theirbase surface FIG. 3 it can be seen that the base 12 b is parallel to the base 14 b and that thebases FIG. 5 it is shown that the base 12 b of thefirst cone 12 is circular. In the present invention, the tapering surfaces 12 a, 14 a are straight. - In an alternative embodiment, it would be possible to provide the
cones - In the present embodiment, the
first cone 12 and thesecond cone 14 is displaceable in an axial direction with respect to each other. Acone packer element 15 is provided between the base of thefirst cone 12 and the base of thesecond cone 14. Again, theconnection device 16 is provided for radial orientation of thefirst cone 12 in relation to thesecond cone 14. Theconnection device 16 limits the axial displacement of thefirst cone 12 in relation to thesecond cone 14. - In the present embodiment, the
connection device 16 limits the maximum distance between the base of thefirst cone 12 and the base of thesecond cone 14. The compression of the cone packer element limits the minimum distance between the base of thefirst cone 12 and the base of thesecond cone 14. However, theconnection device 16 may also be used to limit the minimum distance between the base of thefirst cone 12 and the base of thesecond cone 14. In the present embodiment theconnection device 16 comprises at least one screw (seeFIG. 7 ), or by means of other types of connection means 16 well known for a person skilled in the art. - The first and second
packer supporting devices arms 24 having afirst end 24 a movably or pivotably connected to the pluggingdevice 1 and asecond end 24 b movably or pivotably connected to either a front supportingelement 30 or a rear supportingelement 40. It should be noted that it would be possible to connect thesecond end 24 b of thearm 24 to the front supportingelement 30 or the rear supportingelement 40 in a fixed way, i.e. they are not movable or pivotable in relation to each other. - In
FIG. 8 it is shown a supportingarm 24 having itssecond end 24 b pivotably connected to a front supportingelement 30. InFIG. 10 it is shown a supportingarm 24 having itssecond end 24 b pivotably connected to a rear supportingelement 40. - The supporting
arm 24 can for example be similar to those described in U.S. Pat. No. 7,178,602. The supporting arms are therefore considered known for a skilled person, and will not be described in detail herein. The supporting arms form a continuous outer surface around the plugging device in the retracted position and during expansion to the expanded position, thereby preventing debris etc in the well flow to block the expansion/retraction process. This can for example be seen inFIGS. 5 and 6 . - The pivotation of the supporting
arm 24 with respect to the pluggingdevice 1 and the front or rear supportingelement arm 24 to move radially out from the pluggingdevice 1. - A sliding surface is provided on the first and second
packer supporting device element 30 and/or rear supportingelement 40. - Alternatively, sliding surfaces could be provided on other parts of the first and second
packer supporting devices arms 24. - The sliding surface is provided for sliding up and down the tapering
surface packer supporting devices elements 30 and therear supporting elements 40. - The front supporting
element 30 will now be described with reference toFIG. 9 . The front supportingelement 30 comprises a slidingsurface 31 for sliding up and down the taperingsurface element 30 is a part of the first or secondpacker supporting device - The front supporting
element 30 further comprises afront surface 32 for supporting a packer body generally denoted withreference number 50. Thefront surface 32 is faced towards the base of the first andsecond cones FIG. 5 . In the present embodiment, thefront surface 32 is substantially parallel to the base of the first andsecond cones front surface 32 is also faced towards the plane formed by the base of the first andsecond cones FIG. 6 . More specifically, thefront surface 32 of the firstpacker supporting device 20 is faced towards the plane formed by the base of thesecond cone 14 and thefront surfaces 32 of the secondpacker supporting device 22 is faced towards the plane formed by the base of thefirst cone 12, both in the retracted and in the expanded position. In the present embodiment, since the taperedsurface front surface 32 is always perpendicular to the longitudinal direction of the plugging device, i.e. both during retraction and expansion. Thefront surface 32 is at least partially curved. - The front supporting
element 30 also comprises a radialouter surface 33. The radialouter surface 33 is curved, the curve preferably having a radius R (seeFIG. 13 c) corresponding to the radius of the casing the plugging device is set in. - The front supporting
element 30 also comprises arear surface 34 provided on the rear side of thefront surface 32. Therear surface 34 is substantially planar. On the rear surface 34 a supportingbody 35 is provided. When viewed from above inFIG. 9 , the supportingbody 35 is substantially T-shaped, having astem 35 a and across bar 35 b. Aconnection interface 36 for pivotably connection to the supportingarm 24 is provided as a part of thecross bar 35 b, see for exampleFIG. 14 . - The rear supporting
element 40 will now be described with reference toFIG. 11 . The rear supportingelement 40 also comprises a slidingsurface 41 for sliding up and down the taperingsurface element 40 is a part of the first or secondpacker supporting device - Moreover, the
rear supporting element 40 further comprises a substantially planarfront surface 42. Thefront surface 42 is provided for supporting therear surface 34 of the front supportingelement 30 both in the retracted and expanded position. - The
rear surface 42 is also faced towards the base of the first andsecond cones FIG. 5 . In the present embodiment, therear surface 42 is substantially parallel to the base of the first andsecond cones rear surface 42 is also faced towards the plane formed by the base of the first andsecond cones FIG. 6 . More specifically, therear surface 42 of the firstpacker supporting device 20 is faced towards the plane formed by the base of thesecond cone 14 and thefront surfaces 32 of the secondpacker supporting device 22 is faced towards the plane formed by the base of thefirst cone 12, both in the retracted and in the expanded position. In the present embodiment, since the taperedsurface rear surface 42 is always perpendicular to the longitudinal direction of the plugging device, i.e. both during retraction and expansion. - The rear supporting
element 40 also comprises a radialouter surface 43. The radialouter surface 43 is curved, the curve preferably having a radius R (seeFIG. 13 c) corresponding to the radius of the casing the plugging device is set in. Hence, in the expanded position showed inFIG. 13 c, the front and rear supportingelements - The rear supporting
element 40 also comprises arear surface 44 provided on the rear side of thefront surface 42. On the rear surface 44 a supportingbody 45 is provided. Aconnection interface 46 for pivotably connection to the supportingarm 24 is provided on therear surface 44, see for exampleFIG. 14 . - It is now referred to
FIG. 12 a-c andFIG. 13 a-c. InFIG. 12 a it is shown that nine rear supportingelements 40 are providing a “torus”-like ring when arranged next to each other. Moreover, the slidingsurfaces 41 of therear supporting elements 40 may provide a continuous contact surface towards thecone FIG. 12 a it is shown that aslit 49 is formed between two adjacentrear supporting elements 40. The shape of theslit 49 between two suchrear supporting elements 40 is configured to receive thestem 35 a of the front supportingelement 30, as shown inFIG. 12 b. - In
FIG. 12 c, all nineslits 49 have received onefront supporting element 30. Here it is shown that thefront surface 42 of onerear supporting element 40 is provided at lest partially behind therear surfaces 34 of two adjacentfront supporting elements 30 in the retracted position. The front surfaces 42 of therear supporting elements 40 are supporting therear surfaces 34 of the front supportingelements 30 in the retracted position. - In
FIG. 12 c it is shown that the slidingsurfaces 31 of the front supportingelements 30 may form a substantially continuous contact surface towards thecone - In the expanded position shown in
FIG. 13 a, the distance between the rear supportingelements 40 increases as they slide on the tapering surface of thecone FIGS. 13 b and 13 c, there is still contact between thefront surfaces 42 of therear supporting elements 40 and therear surfaces 34 of the front supportingelements 30 in the expanded position. It should be noted that that the slidingsurfaces elements cone FIG. 13 c by the dashed line A. - Moreover, the radial
outer surfaces elements FIG. 13 c by the dashed line B. - From
FIGS. 5 and 6 it is clear that every second supportingarm 24 of the first supportingdevice 20 is pivotably connected to the respectivefront supporting elements 30 and every second supportingarm 24 is pivotably connected to the respectiverear supporting elements 40. This is also the case for the second supportingdevice 22. - It is now referred to
FIGS. 14 and 15 . Here it is shown that the first and secondpacker supporting device front surface 32 of the front supportingelements 30 of the first outerpacker supporting device 20 is faced towards afront surface 42 of therear supporting elements 40 of the second outerpacker supporting device 22 in the expanded position. Consequently, eachfront surface 32 of the front supportingelements 30 of the second outerpacker supporting device 22 is faced towards afront surface 42 of therear supporting elements 40 of the first outerpacker supporting device 20 in the expanded position. - In
FIG. 14 it is shown that the straight dashed line D is going through both the centre of thefront surface 32 of the front supportingelement 30 and the centre of thefront surface 42 of the rear supportingelement 40. - In the first embodiment shown in
FIGS. 3-8 , theouter packer body 50 comprisespacker elements 50 a provided on thefront surface 32 of each front supportingelement 30. Thepacker element 50 a is made of a ductile material, such as an elastomeric material and/or a rubber material etc, which may withstand the pressure and temperature required for the well pipe being sealed. Thepacker element 50 a may be molded onto the front supportingelement 30. In the present embodiment, the radialinner part 51 of eachpacker element 50 a is protruding in an axial direction in relation to the radial outer part 52 (seeFIG. 8 ). In this way the radialinner part 51 will be pressed downwards toward the cone device in the expanded position. - The plugging device may be provided with a guiding system for preventing relative rotation between the first and second
packer supporting devices FIG. 7 it is shown a guidingpin 28 provided in a guiding groove (not shown) preventing a relative rotation between the first and secondpacker supporting devices - The operation of the
packer device 4 will now be described. Thepacker device 4 is initially in its retracted position. A retracting device 60 (seeFIG. 7 ), for example a spring etc may be provided for bringing the first and secondpacker supporting devices device 60 is in one end fixed to the supportingarm 24 and in the other end to the respective first orsecond part FIG. 7 . It should be noted that thepacker element 50 a is not stressed in the retracted position. - For bringing the
packer device 4 to its expanded position, afirst part 1 a of the pluggingdevice 1 is pressed towards asecond part 1 b of the plugging device (seeFIG. 7 ), as is known for a skilled person. The guiding system prevents a relative rotation between thefirst part 1 a and thesecond part 1 b. Consequently, the slidingsurfaces elements cones arms 24. - In the expanded position, the
packer element 50 a is pressed between thefront surface 32 of the front supportingelements 30 and thefront surface 42 of therear supporting elements 40. Hence, thefront surface 42 of the rear supportingelement 40 is configured to support apacker element 50 a of the oppositepacker supporting device - As shown in
FIG. 4 , thepacker elements 50 a form a continuous packer around thepacker device 4, where everysecond packer element 50 a is fixed to the first outerpacker supporting device 20 and everysecond packer element 50 a is fixed to the second outerpacker supporting device 22. - In
FIG. 15 it is shown that thefront surfaces outer packer body 50. Theouter packer body 50 will form a seal towards the pipe in the expanded position, and the extrusion barrier surface prevents the extrusion of theouter packer body 50. Moreover, the expansion will also provide that thefirst cone 12 is displaced towards thesecond cone 14, thereby providing a compression of, and a radial expansion of, thecone packer element 15. Hence, thecone packer element 15 will be pressed towards theouter packer body 50 along its radial periphery. Hence, a continuous ductile seal is provided in the pipe by thecone packer element 15 and theouter packer body 50. - In
FIG. 14 the central line between the front and rear supporting elements of the respective first and second supportingdevices front surface 32 of the front supportingelements 30 provides that the opening for theouter packer body 50 between the first supportingdevice 20 and the second supportingdevice 22 is approximately the same around the periphery. Hence, the stress on theouter packer body 50 is substantially similar around the periphery. - When the
packer device 4 is to be retracted, thefirst part 1 a of the pluggingdevice 1 is pulled away from thesecond part 1 b of the pluggingdevice 1, as is familiar for a skilled person. The sliding surfaces 31, 41 will now slide down on the tapering surfaces of thecones device 60, thereby pressing the supportingarms 24 radially inwards. Thefirst part 1 a is pulled away from thesecond part 1 b until the maximum distance between the base of thefirst cone 12 and the base of thesecond cone 14 is reached due to theconnection device 16. Then the pluggingdevice 1 has reached the retracted position and may be retrieved from the well pipe. - In the first embodiment described above, the
outer packer body 50 comprisedseveral packer elements 50 a. However, in a second embodiment, theouter packer body 50 may be provided as onepacker element 50 b. InFIG. 16 one embodiment of such apacker element 50 b is illustrated. Thepacker element 50 b comprises one continuous packer which is folded to allow it to expand and retract. Thepacker element 50 b comprises ninefolds 53 which may be fixed to the respective nine front supportingelements 30 of one of thepacker supporting devices outer packer body 50 could comprise two or moresuch packer elements 50 b, each fixed to each other and/or thefront supporting elements 30 of the first and secondpacker supporting device - Another embodiment is illustrated in
FIG. 17 . Here, theouter packer body 50 comprisesseveral packer elements 50 c. Thepacker elements 50 c is, as thepacker elements 50 a described above, made of a ductile material. However, in this embodiment eachpacker element 50 c is connected to thefront surface 32 of the front supportingelement 30 by means of a sliding dove-tail joint 54. Thepacker element 50 c also provided withpieces 55 of a plastic deformable material, a more rigid material than the ductile material. As shown inFIG. 17 , the part of thepacker element 50 c which forms the dovetail joint is made of the plastic deformable material. The dovetail joint 54 allows thepacker element 50 c to slide radially out towards the inner surface of the pipe in the expanded position, to improve the seal in cases where the pipe has been deformed. The dove-tail joint 54 comprises stopping means to limit the radial movement of thepacker element 50 c in relation to the front supportingelement 30. - Even though the description above have been focused on a plugging device for hydrocarbon well pipes, it should be noted that the plugging devices could also be used for plugging other types of pipes, for example water pipes etc.
Claims (14)
1. A plugging device comprising a packer device for pressure tight sealing of a pipe, the packer device comprising:
a first outer packer supporting device;
a second outer packer supporting device;
an outer packer body provided axially between the first outer packer supporting device and the second outer packer supporting device, wherein the outer packer body is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second outer packer supporting devices;
a first inner packer supporting device;
a second inner packer supporting device; and
an inner packer body provided axially between the first inner packer supporting device and the second inner packer supporting device, wherein the inner packer body is provided radially inside the outer packer body when the outer packer body is in the radially expanded position,
wherein the inner packer body is movable between a radially retracted position and a radially expanded position by an axial movement between the first and second inner packer supporting devices.
2. The plugging device according to claim 1 , wherein the inner packer body is compressed against a radial inner surface of the outer packer body or the first or second outer packer supporting devices when in the radially expanded position.
3. The plugging device according to claim 1 , wherein:
the first inner packer supporting device comprises a first cone having a tapering surface and a base;
the second inner packer supporting device comprises a second cone having a tapering surface and a base; and
the inner packer body is provided between the bases of the first and second cones.
4. The plugging device according to claim 1 , wherein a connection device is provided for radial orientation of the first inner packer supporting device in relation to the second inner packer supporting device.
5. The plugging device according to claim 4 , wherein the connection device is configured to limit the axial movement between the first inner packer supporting device and the second inner packer supporting device.
6. The plugging device according to claim 4 , wherein the connection device comprises a threaded bolt inserted through an opening of the first inner packer supporting device and fastened to a threaded opening of the second inner packer supporting device.
7. The plugging device according claim 3 , wherein a sliding surface is provided on the first and second packer supporting devices and is configured to slide up and down the tapering surfaces of the first or second inner packer supporting devices during the movement between the radially expanded position and the radially retracted position.
8. The plugging device according to claim 2 , wherein:
the first inner packer supporting device comprises a first cone having a tapering surface and a base;
the second inner packer supporting device comprises a second cone having a tapering surface and a base; and
the inner packer body is provided between the bases of the first and second cones.
9. The plugging device according to claim 2 , wherein a connection device is provided for radial orientation of the first inner packer supporting device in relation to the second inner packer supporting device.
10. The plugging device according to claim 3 , wherein a connection device is provided for radial orientation of the first inner packer supporting device in relation to the second inner packer supporting device.
11. The plugging device according to claim 5 , wherein the connection device comprises a threaded bolt inserted through an opening of the first inner packer supporting device and fastened to a threaded opening of the second inner packer supporting device.
12. The plugging device according to claim 4 , wherein a sliding surface is provided on the first and second packer supporting device and is configured to slide up and down the tapering surfaces of the first or second inner packer supporting devices during the movement between the radially expanded position and the radially retracted position.
13. The plugging device according to claim 5 , wherein a sliding surface is provided on the first and second packer supporting device and is configured to slide up and down the tapering surfaces of the first or second inner packer supporting devices during the movement between the radially expanded position and the radially retracted position.
14. The plugging device according to claim 6 , wherein a sliding surface is provided on the first and second packer supporting device and is configured to slide up and down the tapering surfaces of the first or second inner packer supporting devices during the movement between the radially expanded position and the radially retracted position.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20101759 | 2010-12-15 | ||
NO20101759A NO332116B1 (en) | 2010-12-15 | 2010-12-15 | Plug device |
PCT/EP2011/070533 WO2012079914A2 (en) | 2010-12-15 | 2011-11-21 | Plugging device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130319654A1 true US20130319654A1 (en) | 2013-12-05 |
Family
ID=44999786
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/993,747 Active 2033-05-04 US9291028B2 (en) | 2010-12-15 | 2011-11-21 | Plugging device |
US13/993,760 Abandoned US20130319654A1 (en) | 2010-12-15 | 2011-11-21 | Plugging device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/993,747 Active 2033-05-04 US9291028B2 (en) | 2010-12-15 | 2011-11-21 | Plugging device |
Country Status (7)
Country | Link |
---|---|
US (2) | US9291028B2 (en) |
EP (2) | EP2652243B1 (en) |
BR (2) | BR112013014901A2 (en) |
DK (2) | DK2652242T3 (en) |
MX (2) | MX354362B (en) |
NO (2) | NO332116B1 (en) |
WO (2) | WO2012079913A2 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019002883A1 (en) | 2017-06-28 | 2019-01-03 | Peak Well Systems Pty Ltd | Seal apparatus and methods of use |
US10801284B2 (en) | 2015-12-23 | 2020-10-13 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
US10822882B2 (en) | 2015-12-23 | 2020-11-03 | Schlumberger Technology Corporation | Downhole apparatus and method of use |
WO2021003415A1 (en) | 2019-07-02 | 2021-01-07 | Schlumberger Technology Corporation | Expanding and collapsing apparatus with seal pressure equalization |
CN112814610A (en) * | 2021-01-05 | 2021-05-18 | 孙淑芳 | Expanding packer |
CN112832707A (en) * | 2019-11-22 | 2021-05-25 | 中国石油化工股份有限公司 | Hydraulic expansion type leakage stopping tool and leakage stopping method thereof |
CN112855067A (en) * | 2019-11-28 | 2021-05-28 | 中国石油化工股份有限公司 | Mechanical expansion type leakage stopping tool and leakage stopping method thereof |
US11021927B2 (en) * | 2017-07-05 | 2021-06-01 | Interwell Norway As | Well tool assembly |
US11078746B2 (en) | 2016-11-09 | 2021-08-03 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
US11098554B2 (en) | 2015-12-23 | 2021-08-24 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
US11231077B2 (en) | 2015-12-23 | 2022-01-25 | Schlumberger Technology Corporation | Torque transfer apparatus and methods of use |
US20230265737A1 (en) * | 2022-02-18 | 2023-08-24 | Baker Hughes Oilfield Operations Llc | High expansion backup, seal, and system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO334009B1 (en) | 2011-06-03 | 2013-11-18 | Interwell Technology As | Plug device |
NO338075B1 (en) * | 2012-07-26 | 2016-07-25 | Interwell Technology As | Plug device |
CN103775015B (en) * | 2012-10-18 | 2016-11-16 | 中国石油化工股份有限公司 | Expand instrument under cased well and use its expansion sleeve method |
NO342655B1 (en) | 2014-08-20 | 2018-06-25 | E Holstad Holding As | Apparatus for sealing a bore, a system comprising the apparatus and a method of using the apparatus |
NO341581B1 (en) | 2015-09-17 | 2017-12-11 | Interwell Technology As | Sealing device for a well plug |
CA3003416C (en) | 2015-12-11 | 2019-08-20 | Halliburton Energy Services, Inc. | Wellbore isolation device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7290603B2 (en) * | 2004-07-09 | 2007-11-06 | Bronnteknologiutvikling As | Downhole plug |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2216336A (en) * | 1939-07-15 | 1940-10-01 | Lane Wells Co | Multiple ring packer |
US3526278A (en) * | 1968-04-16 | 1970-09-01 | Byron Jackson Inc | High volume main valve for formation testers |
US3526277A (en) * | 1968-06-10 | 1970-09-01 | Byron Jackson Inc | Well packer and anchor means therefor |
US6354372B1 (en) * | 2000-01-13 | 2002-03-12 | Carisella & Cook Ventures | Subterranean well tool and slip assembly |
US6796376B2 (en) * | 2002-07-02 | 2004-09-28 | Warren L. Frazier | Composite bridge plug system |
US6827150B2 (en) | 2002-10-09 | 2004-12-07 | Weatherford/Lamb, Inc. | High expansion packer |
NO318363B1 (en) * | 2003-04-02 | 2005-03-07 | Bronnteknologiutvikling As | Device for drawable bridge plug |
US7779905B2 (en) * | 2007-02-27 | 2010-08-24 | High Pressure Integrity, Inc. | Subterranean well tool including a locking seal healing system |
US7900696B1 (en) * | 2008-08-15 | 2011-03-08 | Itt Manufacturing Enterprises, Inc. | Downhole tool with exposable and openable flow-back vents |
-
2010
- 2010-12-15 NO NO20101759A patent/NO332116B1/en unknown
-
2011
- 2011-11-21 WO PCT/EP2011/070527 patent/WO2012079913A2/en active Application Filing
- 2011-11-21 US US13/993,747 patent/US9291028B2/en active Active
- 2011-11-21 WO PCT/EP2011/070533 patent/WO2012079914A2/en active Application Filing
- 2011-11-21 MX MX2013006685A patent/MX354362B/en active IP Right Grant
- 2011-11-21 DK DK11785026.3T patent/DK2652242T3/en active
- 2011-11-21 MX MX2013006684A patent/MX357662B/en active IP Right Grant
- 2011-11-21 BR BR112013014901A patent/BR112013014901A2/en not_active Application Discontinuation
- 2011-11-21 DK DK11787842.1T patent/DK2652243T3/en active
- 2011-11-21 US US13/993,760 patent/US20130319654A1/en not_active Abandoned
- 2011-11-21 EP EP11787842.1A patent/EP2652243B1/en active Active
- 2011-11-21 BR BR112013014902-7A patent/BR112013014902B1/en active IP Right Grant
- 2011-11-21 EP EP11785026.3A patent/EP2652242B1/en active Active
-
2013
- 2013-06-13 NO NO20130830A patent/NO338096B1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7290603B2 (en) * | 2004-07-09 | 2007-11-06 | Bronnteknologiutvikling As | Downhole plug |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10801284B2 (en) | 2015-12-23 | 2020-10-13 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
US10822882B2 (en) | 2015-12-23 | 2020-11-03 | Schlumberger Technology Corporation | Downhole apparatus and method of use |
US11231077B2 (en) | 2015-12-23 | 2022-01-25 | Schlumberger Technology Corporation | Torque transfer apparatus and methods of use |
US11098554B2 (en) | 2015-12-23 | 2021-08-24 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
US11078746B2 (en) | 2016-11-09 | 2021-08-03 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
WO2019002883A1 (en) | 2017-06-28 | 2019-01-03 | Peak Well Systems Pty Ltd | Seal apparatus and methods of use |
US11168536B2 (en) * | 2017-06-28 | 2021-11-09 | Schlumberger Technology Corporation | Seal apparatus and methods of use |
US11021927B2 (en) * | 2017-07-05 | 2021-06-01 | Interwell Norway As | Well tool assembly |
WO2021003412A1 (en) | 2019-07-02 | 2021-01-07 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
WO2021003415A1 (en) | 2019-07-02 | 2021-01-07 | Schlumberger Technology Corporation | Expanding and collapsing apparatus with seal pressure equalization |
US11339625B2 (en) | 2019-07-02 | 2022-05-24 | Schlumberger Technology Corporation | Self-inflating high expansion seal |
US20220268116A1 (en) * | 2019-07-02 | 2022-08-25 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
US11834924B2 (en) | 2019-07-02 | 2023-12-05 | Schlumberger Technology Corporation | Expanding and collapsing apparatus with seal pressure equalization |
US11898413B2 (en) * | 2019-07-02 | 2024-02-13 | Schlumberger Technology Corporation | Expanding and collapsing apparatus and methods of use |
CN112832707A (en) * | 2019-11-22 | 2021-05-25 | 中国石油化工股份有限公司 | Hydraulic expansion type leakage stopping tool and leakage stopping method thereof |
CN112855067A (en) * | 2019-11-28 | 2021-05-28 | 中国石油化工股份有限公司 | Mechanical expansion type leakage stopping tool and leakage stopping method thereof |
CN112814610A (en) * | 2021-01-05 | 2021-05-18 | 孙淑芳 | Expanding packer |
US20230265737A1 (en) * | 2022-02-18 | 2023-08-24 | Baker Hughes Oilfield Operations Llc | High expansion backup, seal, and system |
Also Published As
Publication number | Publication date |
---|---|
EP2652242A2 (en) | 2013-10-23 |
WO2012079913A2 (en) | 2012-06-21 |
US9291028B2 (en) | 2016-03-22 |
US20130333875A1 (en) | 2013-12-19 |
NO338096B1 (en) | 2016-08-01 |
EP2652243B1 (en) | 2014-09-10 |
NO20130830A1 (en) | 2013-06-13 |
MX357662B (en) | 2018-07-18 |
MX2013006685A (en) | 2013-10-01 |
MX354362B (en) | 2018-02-28 |
WO2012079914A2 (en) | 2012-06-21 |
EP2652242B1 (en) | 2014-11-12 |
MX2013006684A (en) | 2013-10-01 |
DK2652242T3 (en) | 2015-02-23 |
NO20101759A1 (en) | 2012-06-18 |
DK2652243T3 (en) | 2014-12-15 |
NO332116B1 (en) | 2012-06-25 |
BR112013014901A2 (en) | 2016-09-13 |
WO2012079914A3 (en) | 2013-01-10 |
WO2012079913A3 (en) | 2013-01-10 |
EP2652243A2 (en) | 2013-10-23 |
BR112013014902A2 (en) | 2016-09-13 |
BR112013014902B1 (en) | 2020-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9291028B2 (en) | Plugging device | |
US10570693B2 (en) | Apparatus for use in a fluid conduit | |
US7290603B2 (en) | Downhole plug | |
CN102482928B (en) | Expandable gage ring | |
US20140284047A1 (en) | Expandable packer | |
NO315720B1 (en) | Retractable, expandable packing device with anti-extortion system for sealing a substantially annular space between a cylindrical object and a bore | |
WO2017109508A1 (en) | Expanding and collapsing apparatus and methods of use | |
US10648277B2 (en) | Supporting device for a sealing element in well plug | |
US11268336B2 (en) | Well tool device comprising a ratchet system | |
EP2888435B1 (en) | Plugging device | |
US10107066B2 (en) | Anti-creep rings and configurations for single packers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: INTERWELL TECHNOLOGY AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HIORTH, ESPEN;GEORGSEN, STEINAR;MALVIK, CHRISTIAN;REEL/FRAME:031036/0629 Effective date: 20130709 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |