CA2690039A1 - Swellable apparatus and method - Google Patents
Swellable apparatus and method Download PDFInfo
- Publication number
- CA2690039A1 CA2690039A1 CA2690039A CA2690039A CA2690039A1 CA 2690039 A1 CA2690039 A1 CA 2690039A1 CA 2690039 A CA2690039 A CA 2690039A CA 2690039 A CA2690039 A CA 2690039A CA 2690039 A1 CA2690039 A1 CA 2690039A1
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- CA
- Canada
- Prior art keywords
- flow path
- tubular
- sand control
- clamed
- support structure
- 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
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1035—Wear protectors; Centralising devices, e.g. stabilisers for plural rods, pipes or lines, e.g. for control lines
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- 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
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/04—Gravelling of wells
Abstract
The invention provides an apparatus and method for a sand control completion in a wellbore. The apparatus has a body comprising a swellable material configured to surround a wellbore tubular which defines a primary flow path for wellbore fluids. The body is also configured to surround at least one secondary flow path disposed externally of the wellbore tubular. The secondary flow path is configured for a carrier fluid containing particulate matter for a gravel pack. The body also comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied to the tubular.
Description
2
3 FIELD OF THE INVENTION
4 The present invention relates to an apparatus and method for use in wellbores for the hydrocarbon exploration and production industry. The invention 6 relates particularly, although not exclusively, to an apparatus and method for use 7 with alternate path sand control completions.
In the field of oil and gas exploration and production, multi-zone 11 completion systems are used in the production of hydrocarbons from wells which 12 penetrate different parts of a formation with different properties. An example of a 13 multi-zone completion system is shown in Fig. 1. The system, generally shown at 14 100, includes a production facility at surface, which in this case is a floating production storage and offloading (FPSO) vessel 102, coupled to a well 104 via 16 subsea tree 106. The wellbore in this case is an inclined wellbore which extends 17 through multiple production intervals 107a, 107b, 107c in the formation 108. The 18 production tubing 110 provides a continuous flow path which penetrates through the 19 multiple zones. The production tubing is provided with ports or inflow control devices (not shown) which allow production fluid to flow into the production tubing 21 and out to the subsea tree 106. However, in order to provide control over the 22 production process, the annulus 112 is sealed by packers 114 between the different 1 production zones 107 to prevent fluid flowing in the annulus between the different 2 zones.
4 Depending on the formation, the production tubing may be provided with sand control devices 116, to prevent solid particles from the formation entering 6 the production tubing. The sand control devices 116 may for example be any 7 suitable sand screen systems, including expandable screen systems. The sand 8 control devices 116 may be used in conjunction with one or more gravel packs 118, 9 which comprise gravel or other particulate matter around the sand control device to improve filtration and to provide additional support to the formation. Gravel packing 11 requires a good distribution of gravel in the annulus at the sand control device. To 12 improve the delivery of gravel, sand control devices have been provided with shunt 13 tubes, which create alternate flow paths for the gravel and its carrier fluid. These 14 alternate flow paths significantly improve the distribution of gravel in the production interval, for example by allowing the carrier fluid and gravel to be delivered through 16 sand bridges that may be formed in the annulus before the gravel pack has been 17 completed.
19 Figs. 2A and 2B are schematic views of examples of sand screens provided with shunt tubes in a completion system 200. A first sand control device 21 202a is coupled to a second sand control device 202b, and each comprise base 22 pipes 204 joined to define a production bore 206. Screens 208 including filter 23 media surround the base pipe 204 and are supported by ribs 210. The apparatus is 1 provided with shunt tubes 212, which in this example are steel tubes having 2 substantially rectangular cross-section. The shunt tubes 212 are supported on the 3 exterior of the screen and provide a flow path 213 alternate to the main production 4 bore 206. Jumper tubes 211 are used to provide fluid communication between shunt tubes of adjacent sand control devices. The shunt tubes 212 maintain a flow 6 path 213, even if the annular space 214 is bridged, for example by a loss of integrity 7 in a part of the formation 216. Examples of shunt tube arrangements can be found 8 in US 4945991 and US 5113935. The shunt tubes may also be internal to the 9 filter media, as described in US 5515915 and US 6227303.
11 A typical sand control apparatus comprises a main shroud 218 which 12 extends completely over the fiiter media sand control device, and provides a 13 protective sleeve for the filter media and shunt tubes. The shroud is provided with 14 apertures to allow the throughflow of fluid. The main shroud terminates at an end ring 220, which supports an end of the shroud and comprises passages for shunt 16 tubes. When the shunt tubes 212 are connected by the jumper tubes 211, an 17 auxiliary shroud 222 is provided over the shunt tubes at the coupling. The auxiliary 18 shroud is typically formed from part-cylindrical components which are assembled 19 together to form the shroud. The auxiliary shroud extends between the end rings 220 of sand control devices, and functions to provide a continuous outer diameter to 21 the assembly, and to protect the shunt tubes, jumper tubes, and any corresponding 22 connectors. The auxiliary shroud covers the shoulders created by the end rings 23 220.
2 WO 05/090743 discloses a system for sealing an annular space 3 around a control line used to actuate a valve. A seal layer has an inner surface 4 provided with a recess for receiving a control line, and on an opposing side is provided with a slit which allows the seal layer to be opened for radial application to 6 a tubular. The seal layer is formed from a material susceptible of swelling upon 7 contact with a selected fluid. The disclosure relates exclusively to sealing around 8 control lines.
It is an object of the invention to provide an apparatus and method 11 which overcomes or mitigates at least one deficiency or drawback of the prior art. It 12 is a further object of the invention to provide a wellbore completion and/or 13 production system or method of use which incorporates such an apparatus or 14 method.
It is a further object of the invention to provide an alternative 16 apparatus and method for protection of components of sand control completion 17 systems.
2 According to a first aspect of the invention, there is provided an 3 apparatus for a sand control completion in a wellbore. the apparatus comprises: a 4 body having a swellable material selected to increase in volume on exposure to at least one triggering fluid. The body is configured to surround a wellbore tubular 6 which defines a primary flow path and further configured to surround at least one 7 secondary flow path disposed externally of the wellbore tubular. The secondary 8 flow path is configured for a carrier fluid containing particulate matter for a gravel 9 pack, and the body comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied 11 to the tubular.
13 The apparatus may be a protective shroud for an alternate path sand 14 control completion system.
16 According to a second aspect of the invention, there is provided a 17 sand control completion comprising a tubular defining a primary fluid flow path; a 18 first sand control device; a secondary fluid flow path for delivering a carrier fluid 19 containing particulate matter for a gravel pack to the first sand control device; and a body. The body comprises a swellable material selected to increase in volume on 21 exposure to at least one triggering fluid disposed over the secondary flow path and 22 the tubular, wherein the body comprises a longitudinal discontinuity which permits a
In the field of oil and gas exploration and production, multi-zone 11 completion systems are used in the production of hydrocarbons from wells which 12 penetrate different parts of a formation with different properties. An example of a 13 multi-zone completion system is shown in Fig. 1. The system, generally shown at 14 100, includes a production facility at surface, which in this case is a floating production storage and offloading (FPSO) vessel 102, coupled to a well 104 via 16 subsea tree 106. The wellbore in this case is an inclined wellbore which extends 17 through multiple production intervals 107a, 107b, 107c in the formation 108. The 18 production tubing 110 provides a continuous flow path which penetrates through the 19 multiple zones. The production tubing is provided with ports or inflow control devices (not shown) which allow production fluid to flow into the production tubing 21 and out to the subsea tree 106. However, in order to provide control over the 22 production process, the annulus 112 is sealed by packers 114 between the different 1 production zones 107 to prevent fluid flowing in the annulus between the different 2 zones.
4 Depending on the formation, the production tubing may be provided with sand control devices 116, to prevent solid particles from the formation entering 6 the production tubing. The sand control devices 116 may for example be any 7 suitable sand screen systems, including expandable screen systems. The sand 8 control devices 116 may be used in conjunction with one or more gravel packs 118, 9 which comprise gravel or other particulate matter around the sand control device to improve filtration and to provide additional support to the formation. Gravel packing 11 requires a good distribution of gravel in the annulus at the sand control device. To 12 improve the delivery of gravel, sand control devices have been provided with shunt 13 tubes, which create alternate flow paths for the gravel and its carrier fluid. These 14 alternate flow paths significantly improve the distribution of gravel in the production interval, for example by allowing the carrier fluid and gravel to be delivered through 16 sand bridges that may be formed in the annulus before the gravel pack has been 17 completed.
19 Figs. 2A and 2B are schematic views of examples of sand screens provided with shunt tubes in a completion system 200. A first sand control device 21 202a is coupled to a second sand control device 202b, and each comprise base 22 pipes 204 joined to define a production bore 206. Screens 208 including filter 23 media surround the base pipe 204 and are supported by ribs 210. The apparatus is 1 provided with shunt tubes 212, which in this example are steel tubes having 2 substantially rectangular cross-section. The shunt tubes 212 are supported on the 3 exterior of the screen and provide a flow path 213 alternate to the main production 4 bore 206. Jumper tubes 211 are used to provide fluid communication between shunt tubes of adjacent sand control devices. The shunt tubes 212 maintain a flow 6 path 213, even if the annular space 214 is bridged, for example by a loss of integrity 7 in a part of the formation 216. Examples of shunt tube arrangements can be found 8 in US 4945991 and US 5113935. The shunt tubes may also be internal to the 9 filter media, as described in US 5515915 and US 6227303.
11 A typical sand control apparatus comprises a main shroud 218 which 12 extends completely over the fiiter media sand control device, and provides a 13 protective sleeve for the filter media and shunt tubes. The shroud is provided with 14 apertures to allow the throughflow of fluid. The main shroud terminates at an end ring 220, which supports an end of the shroud and comprises passages for shunt 16 tubes. When the shunt tubes 212 are connected by the jumper tubes 211, an 17 auxiliary shroud 222 is provided over the shunt tubes at the coupling. The auxiliary 18 shroud is typically formed from part-cylindrical components which are assembled 19 together to form the shroud. The auxiliary shroud extends between the end rings 220 of sand control devices, and functions to provide a continuous outer diameter to 21 the assembly, and to protect the shunt tubes, jumper tubes, and any corresponding 22 connectors. The auxiliary shroud covers the shoulders created by the end rings 23 220.
2 WO 05/090743 discloses a system for sealing an annular space 3 around a control line used to actuate a valve. A seal layer has an inner surface 4 provided with a recess for receiving a control line, and on an opposing side is provided with a slit which allows the seal layer to be opened for radial application to 6 a tubular. The seal layer is formed from a material susceptible of swelling upon 7 contact with a selected fluid. The disclosure relates exclusively to sealing around 8 control lines.
It is an object of the invention to provide an apparatus and method 11 which overcomes or mitigates at least one deficiency or drawback of the prior art. It 12 is a further object of the invention to provide a wellbore completion and/or 13 production system or method of use which incorporates such an apparatus or 14 method.
It is a further object of the invention to provide an alternative 16 apparatus and method for protection of components of sand control completion 17 systems.
2 According to a first aspect of the invention, there is provided an 3 apparatus for a sand control completion in a wellbore. the apparatus comprises: a 4 body having a swellable material selected to increase in volume on exposure to at least one triggering fluid. The body is configured to surround a wellbore tubular 6 which defines a primary flow path and further configured to surround at least one 7 secondary flow path disposed externally of the wellbore tubular. The secondary 8 flow path is configured for a carrier fluid containing particulate matter for a gravel 9 pack, and the body comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied 11 to the tubular.
13 The apparatus may be a protective shroud for an alternate path sand 14 control completion system.
16 According to a second aspect of the invention, there is provided a 17 sand control completion comprising a tubular defining a primary fluid flow path; a 18 first sand control device; a secondary fluid flow path for delivering a carrier fluid 19 containing particulate matter for a gravel pack to the first sand control device; and a body. The body comprises a swellable material selected to increase in volume on 21 exposure to at least one triggering fluid disposed over the secondary flow path and 22 the tubular, wherein the body comprises a longitudinal discontinuity which permits a
5 1 radial opening to be formed on the body, through which the body is operable to be 2 applied to the tubular.
4 According to a third aspect of the invention, there is provided method of forming a sand control completion. The method comprises forming a primary
4 According to a third aspect of the invention, there is provided method of forming a sand control completion. The method comprises forming a primary
6 fluid flow path from a sand control device and a tubular, providing a secondary fluid
7 flow path for delivering a carrier fluid containing particulate matter for a gravel pack;,
8 and disposing a body comprising a swellable material selected to increase in
9 volume on exposure to at least one triggering fluid over the secondary flow path and the tubular by applying the body to the tubular through a radial opening on the body.
12 Embodiments of the second or third aspects of the invention may 13 include preferred or optional features of the first aspect of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
16 Figure 1 shows schematically a multi-zone production system in 17 accordance with various embodiments of the invention;
19 Figures 2A and 2B are respectively upper and cross-sectional views of a conventional alternate path screen system;
22 Figure 3 is a perspective view of an apparatus in accordance with an 23 embodiment of the invention;
2 Figure 4 is a perspective view of an apparatus in accordance with an 3 embodiment of the invention;
Figures 5A and 5B are respectively part-longitudinal and cross-6 sectional views of an apparatus in accordance with an alternative embodiment of 7 the invention; and 9 Figures 6A and 6B are respectively part- longitudinal and cross-sectional views of an apparatus in accordance with a further alternative embodiment 11 of the invention.
14 Fig. 3 shows an apparatus 300 in accordance with a first embodiment of the invention. The apparatus may be used as an alternative to a conventional 16 shroud for a shunt tube system, such as that shown in Figs. 2A and 2B. The 17 apparatus 300 comprises a body 302 of swellable material, selected to increase in 18 volume on exposure to a triggering fluid. In this case, the body is formed from an 19 EPDM rubber, selected to swell on exposure to a hydrocarbon fluid, although other swellable materials such as those which swell in water or those which swell in both 21 water and hydrocarbons may be used. The body 302 is substantially cylindrical, 22 and contains an internal bore 304 configured to receive a wellbore tubular.
The 23 bore 304 has a main bore portion 306 to receive a base pipe (not shown). It also 1 has an internal profile which is shaped to accommodate a shunt tube arrangement, 2 such as that illustrated in Fig. 2A. The internal profile of the body 302 includes a 3 pair of longitudinal recesses 308 shaped to accommodate shunt tubes or jumper 4 tubes provided on the exterior of the base pipe. An optional third longitudinal recess 310 is provided for the accommodation of a control line which extends 6 through the body.
8 The body 302 is formed in a single piece, and has a longitudinal 9 discontinuity which defines a pair of longitudinal edges 312 extending along the length of the body. The body may be separated at the longitudinal edges to create 11 a radial opening of sufficient size to place the body over a base pipe from a position 12 at the side of the base pipe. The body 302 is resiliently deformable such that it can 13 be opened to be fitted to the base pipe without the need to slide the body 14 longitudinally on to the pipe. The body therefore forms a c-clamp arrangement which may be placed over a base pipe and shunt tube system. The body is 16 provided with bores 319 which allow the body to be secured to the base pipe via 17 bolts or pins.
19 An alternative embodiment is illustrated in Fig. 4, which shows an apparatus 400 similar to the apparatus 300 shown in Fig. 3, with like parts indicated 21 by like reference numerals incremented by 100. However, the apparatus 400 22 comprises a support structure 420 integral with and partially surrounded by the body 23 402. The support structure 420 is formed from a steel alloy, and comprises a 1 tubular portion 422 extending longitudinally in the swellable body. The support 2 structure 420 increases the integral strength of the apparatus and the clamping 3 force that may be imparted to the apparatus when fixing to a base pipe. The tubular 4 portion 422 is formed from two part-cylindrical members 423 which are hinged to allow the longitudinal edges 412 to be readily separated when applying the body to 6 a tubular.
8 The support structure 420 also comprises upstanding formations 9 which extend beyond the outer diameter of the body 402. The formations are in the form of resilient bow springs 424 which are connected to the tubular portions.
The 11 formations provide stand-off of the body from the surround wall of a casing or 12 openhole wellbore. The support structure therefore performs a centralising function 13 for the apparatus and the adjacent components in the string.
A further alternative embodiment is shown in Figs. 5A and 5B, which 16 show an apparatus 500 assembled on a tubular 530 between two sand control 17 devices 540. Fig. 5B is a section through line B-B' shown on Fig. 5A. The 18 apparatus 500 is similar to the apparatus 300 shown in Fig. 3 with like parts 19 indicated by like reference numerals incremented by 200. However, in this embodiment, the shunt tubes 542 terminate in manifolds 550 at each end of the 21 body 502, and the secondary flow path is defined by a longitudinal recess 552 in the 22 body 502 which extends between the manifolds. This embodiment includes a 23 support structure 520 which is formed from two hinged part cylindrical members, in 1 a similar manner to apparatus 400. However, the support structure 520 is internal 2 to the body and only extends along a part of its length. It is disposed around the 3 coupling between the two sand control devices, and improves the integral strength 4 of the apparatus and the clamping force which may be imparted against the coupling.
7 A further alternative embodiment is shown at 600 in Figs. 6A and 6B, 8 with Fig. 6B being a section through iine B-B' shown on Fig. 6A. The apparatus 600 9 is similar to the apparatus 500 shown in Fig. 5 with like parts indicated by like reference numerals incremented by 100. However, the apparatus 600 differs in that 11 the support structure includes upstanding formations which extend beyond the outer 12 diameter of the body 602. The formations are in the form of resilient bow springs 13 624 which are connected to the tubular portions 622. As with the embodiment of 14 Fig. 5, the formations provide stand-off of the body from the surrounding wall of a casing or openhole wellbore. The support structure therefore performs a 16 centralising function for the apparatus and the adjacent components in the string.
18 In an alternative embodiment (not shown), an apparatus is formed 19 from two or more part cylindrical components of a swellable material. The components are fitted over an arrangement of shunt tubes on a base pipe to 21 provide a protective shroud. Two or more of the part cylindrical components may 22 be hinged to one another to aid assembly.
1 Providing a swellable body which fits over the secondary flow path 2 and base pipe assembly is a convenient way to protect exposed portions of shunt 3 tubes, including shoulders, jumper tubes, and couplings in a variety of sand control 4 applications.
6 In the embodiment of Figs. 5 and 6, the apparatus extends between 7 end rings of sand control devices. In other embodiments, the apparatus may be 8 disposed between a sand control device and an annular barrier or isolation packer, 9 which may be formed from a swellable material. In particular, the invention may be used in conjunction with the apparatus and methods described in WO 2007/092082 11 and WO 2007/092083, which relate to providing packers with alternate path 12 mechanisms that may be used to provide zonal isolation between gravel packs in a 13 well.
The invention provides an apparatus and method for a sand control 16 completion in a wellbore. The apparatus has a body comprising a swellable 17 material configured to surround a wellbore tubular which defines a primary flow path 18 for wellbore fluids. The body is also configured to surround at least one secondary 19 flow path disposed externally of the wellbore tubular. The secondary flow path is configured for a carrier fluid containing particulate matter for a gravel pack. The 21 body also comprises a longitudinal discontinuity which permits a radial opening to 22 be formed on the body, through which the body is operable to be applied to the 23 tubular.
12 Embodiments of the second or third aspects of the invention may 13 include preferred or optional features of the first aspect of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
16 Figure 1 shows schematically a multi-zone production system in 17 accordance with various embodiments of the invention;
19 Figures 2A and 2B are respectively upper and cross-sectional views of a conventional alternate path screen system;
22 Figure 3 is a perspective view of an apparatus in accordance with an 23 embodiment of the invention;
2 Figure 4 is a perspective view of an apparatus in accordance with an 3 embodiment of the invention;
Figures 5A and 5B are respectively part-longitudinal and cross-6 sectional views of an apparatus in accordance with an alternative embodiment of 7 the invention; and 9 Figures 6A and 6B are respectively part- longitudinal and cross-sectional views of an apparatus in accordance with a further alternative embodiment 11 of the invention.
14 Fig. 3 shows an apparatus 300 in accordance with a first embodiment of the invention. The apparatus may be used as an alternative to a conventional 16 shroud for a shunt tube system, such as that shown in Figs. 2A and 2B. The 17 apparatus 300 comprises a body 302 of swellable material, selected to increase in 18 volume on exposure to a triggering fluid. In this case, the body is formed from an 19 EPDM rubber, selected to swell on exposure to a hydrocarbon fluid, although other swellable materials such as those which swell in water or those which swell in both 21 water and hydrocarbons may be used. The body 302 is substantially cylindrical, 22 and contains an internal bore 304 configured to receive a wellbore tubular.
The 23 bore 304 has a main bore portion 306 to receive a base pipe (not shown). It also 1 has an internal profile which is shaped to accommodate a shunt tube arrangement, 2 such as that illustrated in Fig. 2A. The internal profile of the body 302 includes a 3 pair of longitudinal recesses 308 shaped to accommodate shunt tubes or jumper 4 tubes provided on the exterior of the base pipe. An optional third longitudinal recess 310 is provided for the accommodation of a control line which extends 6 through the body.
8 The body 302 is formed in a single piece, and has a longitudinal 9 discontinuity which defines a pair of longitudinal edges 312 extending along the length of the body. The body may be separated at the longitudinal edges to create 11 a radial opening of sufficient size to place the body over a base pipe from a position 12 at the side of the base pipe. The body 302 is resiliently deformable such that it can 13 be opened to be fitted to the base pipe without the need to slide the body 14 longitudinally on to the pipe. The body therefore forms a c-clamp arrangement which may be placed over a base pipe and shunt tube system. The body is 16 provided with bores 319 which allow the body to be secured to the base pipe via 17 bolts or pins.
19 An alternative embodiment is illustrated in Fig. 4, which shows an apparatus 400 similar to the apparatus 300 shown in Fig. 3, with like parts indicated 21 by like reference numerals incremented by 100. However, the apparatus 400 22 comprises a support structure 420 integral with and partially surrounded by the body 23 402. The support structure 420 is formed from a steel alloy, and comprises a 1 tubular portion 422 extending longitudinally in the swellable body. The support 2 structure 420 increases the integral strength of the apparatus and the clamping 3 force that may be imparted to the apparatus when fixing to a base pipe. The tubular 4 portion 422 is formed from two part-cylindrical members 423 which are hinged to allow the longitudinal edges 412 to be readily separated when applying the body to 6 a tubular.
8 The support structure 420 also comprises upstanding formations 9 which extend beyond the outer diameter of the body 402. The formations are in the form of resilient bow springs 424 which are connected to the tubular portions.
The 11 formations provide stand-off of the body from the surround wall of a casing or 12 openhole wellbore. The support structure therefore performs a centralising function 13 for the apparatus and the adjacent components in the string.
A further alternative embodiment is shown in Figs. 5A and 5B, which 16 show an apparatus 500 assembled on a tubular 530 between two sand control 17 devices 540. Fig. 5B is a section through line B-B' shown on Fig. 5A. The 18 apparatus 500 is similar to the apparatus 300 shown in Fig. 3 with like parts 19 indicated by like reference numerals incremented by 200. However, in this embodiment, the shunt tubes 542 terminate in manifolds 550 at each end of the 21 body 502, and the secondary flow path is defined by a longitudinal recess 552 in the 22 body 502 which extends between the manifolds. This embodiment includes a 23 support structure 520 which is formed from two hinged part cylindrical members, in 1 a similar manner to apparatus 400. However, the support structure 520 is internal 2 to the body and only extends along a part of its length. It is disposed around the 3 coupling between the two sand control devices, and improves the integral strength 4 of the apparatus and the clamping force which may be imparted against the coupling.
7 A further alternative embodiment is shown at 600 in Figs. 6A and 6B, 8 with Fig. 6B being a section through iine B-B' shown on Fig. 6A. The apparatus 600 9 is similar to the apparatus 500 shown in Fig. 5 with like parts indicated by like reference numerals incremented by 100. However, the apparatus 600 differs in that 11 the support structure includes upstanding formations which extend beyond the outer 12 diameter of the body 602. The formations are in the form of resilient bow springs 13 624 which are connected to the tubular portions 622. As with the embodiment of 14 Fig. 5, the formations provide stand-off of the body from the surrounding wall of a casing or openhole wellbore. The support structure therefore performs a 16 centralising function for the apparatus and the adjacent components in the string.
18 In an alternative embodiment (not shown), an apparatus is formed 19 from two or more part cylindrical components of a swellable material. The components are fitted over an arrangement of shunt tubes on a base pipe to 21 provide a protective shroud. Two or more of the part cylindrical components may 22 be hinged to one another to aid assembly.
1 Providing a swellable body which fits over the secondary flow path 2 and base pipe assembly is a convenient way to protect exposed portions of shunt 3 tubes, including shoulders, jumper tubes, and couplings in a variety of sand control 4 applications.
6 In the embodiment of Figs. 5 and 6, the apparatus extends between 7 end rings of sand control devices. In other embodiments, the apparatus may be 8 disposed between a sand control device and an annular barrier or isolation packer, 9 which may be formed from a swellable material. In particular, the invention may be used in conjunction with the apparatus and methods described in WO 2007/092082 11 and WO 2007/092083, which relate to providing packers with alternate path 12 mechanisms that may be used to provide zonal isolation between gravel packs in a 13 well.
The invention provides an apparatus and method for a sand control 16 completion in a wellbore. The apparatus has a body comprising a swellable 17 material configured to surround a wellbore tubular which defines a primary flow path 18 for wellbore fluids. The body is also configured to surround at least one secondary 19 flow path disposed externally of the wellbore tubular. The secondary flow path is configured for a carrier fluid containing particulate matter for a gravel pack. The 21 body also comprises a longitudinal discontinuity which permits a radial opening to 22 be formed on the body, through which the body is operable to be applied to the 23 tubular.
Claims (14)
1. An apparatus for a sand control completion in a wellbore, the apparatus comprising:
a body comprising a swellable material selected to increase in volume on exposure to at least one triggering fluid, the body configured to surround a wellbore tubular which defines a primary flow path and further configured to surround at least one secondary flow path disposed externally of the wellbore tubular, wherein the secondary flow path is configured for a carrier fluid containing particulate matter for a gravel pack, and the body comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied to the tubular.
a body comprising a swellable material selected to increase in volume on exposure to at least one triggering fluid, the body configured to surround a wellbore tubular which defines a primary flow path and further configured to surround at least one secondary flow path disposed externally of the wellbore tubular, wherein the secondary flow path is configured for a carrier fluid containing particulate matter for a gravel pack, and the body comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied to the tubular.
2. The apparatus as claimed in claim 1, wherein the secondary flow path comprises a conduit and the body is configured to surround the conduit.
3. The apparatus as claimed in claim 2, wherein the conduit is a shunt tube or jumper tube.
4. The apparatus as claimed in claim 1, 2, or 3, wherein the apparatus comprises a longitudinal recess on an inner surface which defines the secondary flow path.
5. The apparatus as clamed in any one of claims 1 to 4, further comprising a manifold in the secondary flow path.
6. The apparatus as clamed in any one of claims 1 to 5, wherein the body comprises a support structure.
7. The apparatus as clamed in claim 6, wherein the support structure is resilient.
8. The apparatus as clamed in claim 6 or 7, wherein the support structure is integral with the body.
9. The apparatus as clamed in claim 8, wherein the body at least partially surrounds the support structure.
10. The apparatus as clamed in any of one claims 6 to 9, wherein at least a portion of the support structure upstands from an outer surface of the body.
11. The apparatus as clamed in claim 10, wherein the support structure is configured to provide stand-off to the apparatus in use.
12. A protective shroud for an alternate path sand control completion system comprising the apparatus of any one of claims 1 to 11.
13. A sand control completion comprising:
a tubular defining a primary fluid flow path;
a first sand control device;
a secondary fluid flow path for delivering a carrier fluid containing particulate matter for a gravel pack to the first sand control device; and a body comprising a swellable material selected to increase in volume on exposure to at least one triggering fluid disposed over the secondary flow path and the tubular, wherein the body comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied to the tubular.
a tubular defining a primary fluid flow path;
a first sand control device;
a secondary fluid flow path for delivering a carrier fluid containing particulate matter for a gravel pack to the first sand control device; and a body comprising a swellable material selected to increase in volume on exposure to at least one triggering fluid disposed over the secondary flow path and the tubular, wherein the body comprises a longitudinal discontinuity which permits a radial opening to be formed on the body, through which the body is operable to be applied to the tubular.
14. A method of forming a sand control completion, the method comprising:
forming a primary fluid flow path from a sand control device and a tubular;
providing a secondary fluid flow path for delivering a carrier fluid containing particulate matter for a gravel pack; and disposing a body comprising a swellable material selected to increase in volume on exposure to at least one triggering fluid over the secondary flow path and the tubular by applying the body to the tubular through a radial opening on the body.
forming a primary fluid flow path from a sand control device and a tubular;
providing a secondary fluid flow path for delivering a carrier fluid containing particulate matter for a gravel pack; and disposing a body comprising a swellable material selected to increase in volume on exposure to at least one triggering fluid over the secondary flow path and the tubular by applying the body to the tubular through a radial opening on the body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0820620A GB2465206B (en) | 2008-11-11 | 2008-11-11 | Swellable apparatus and method |
| GB0820620.3 | 2008-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2690039A1 true CA2690039A1 (en) | 2010-05-11 |
Family
ID=40139733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2690039A Abandoned CA2690039A1 (en) | 2008-11-11 | 2009-11-09 | Swellable apparatus and method |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100236779A1 (en) |
| EP (1) | EP2184437A2 (en) |
| BR (1) | BRPI0904641A2 (en) |
| CA (1) | CA2690039A1 (en) |
| GB (1) | GB2465206B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2094940B1 (en) | 2006-11-15 | 2020-05-13 | Exxonmobil Upstream Research Company | Joint assembly for use in wellbores and method for assembling |
| US20130037256A1 (en) * | 2011-08-12 | 2013-02-14 | Baker Hughes Incorporated | Rotary Shoe Direct Fluid Flow System |
| US9388645B2 (en) | 2011-12-19 | 2016-07-12 | Baker Hughes Incorporated | Apparatus and method for reducing vibration in a borehole |
| US9587459B2 (en) | 2011-12-23 | 2017-03-07 | Weatherford Technology Holdings, Llc | Downhole isolation methods and apparatus therefor |
| IN2014DN10330A (en) * | 2012-06-11 | 2015-08-07 | Halliburton Energy Services Inc | |
| GB2521307B (en) * | 2012-10-18 | 2019-11-06 | Halliburton Energy Services Inc | Gravel packing apparatus having a jumper tube protection assembly |
| US8931568B2 (en) | 2013-03-14 | 2015-01-13 | Weatherford/Lamb, Inc. | Shunt tube connections for wellscreen assembly |
| EP2978930B1 (en) * | 2013-03-26 | 2018-05-09 | Halliburton Energy Services, Inc. | Exterior drain tube for well screen assemblies |
| GB2513656A (en) * | 2013-05-03 | 2014-11-05 | Tendeka Bv | Downhole Protection Apparatus |
| US9580999B2 (en) | 2013-05-20 | 2017-02-28 | Halliburton Energy Services, Inc. | Gravel packing apparatus having a jumper tube protection assembly |
| US20140360613A1 (en) * | 2013-06-07 | 2014-12-11 | Baker Hughes Incorporated | Instrumentation line protection and securement system |
| CA2919009C (en) * | 2013-07-22 | 2019-11-26 | Tam International, Inc. | Grooved swellable packer |
| US10364636B2 (en) | 2013-07-22 | 2019-07-30 | Tam International, Inc. | Swellable casing anchor |
| US9567833B2 (en) | 2013-08-20 | 2017-02-14 | Halliburton Energy Services, Inc. | Sand control assemblies including flow rate regulators |
| US9428997B2 (en) | 2013-09-10 | 2016-08-30 | Weatherford/Lamb, Inc. | Multi-zone bypass packer assembly for gravel packing boreholes |
| CA2879153C (en) | 2014-01-22 | 2018-05-15 | Weatherford Technology Holdings, Llc | Leak-off assembly for gravel pack system |
| US10024143B2 (en) | 2015-06-11 | 2018-07-17 | Weatherford Technology Holdings, Llc | Jumper tube connection for wellscreen assembly |
| AU2016296605B2 (en) | 2015-07-22 | 2019-03-14 | Weatherford Technology Holdings, LLC. | Leak-off assembly for gravel pack system |
| US20190225869A1 (en) * | 2016-10-31 | 2019-07-25 | Halliburton Energy Services, Inc. | High temperature gravel pack fluid |
| US10513921B2 (en) | 2016-11-29 | 2019-12-24 | Weatherford Technology Holdings, Llc | Control line retainer for a downhole tool |
| US10422203B2 (en) * | 2017-03-22 | 2019-09-24 | Baker Hughes, A Ge Company, Llc | Screen connection area assembly for gravel pack and method |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2896714A (en) * | 1956-11-05 | 1959-07-28 | Cecil C Killingsworth | Gravel packing of wells |
| US4919989A (en) * | 1989-04-10 | 1990-04-24 | American Colloid Company | Article for sealing well castings in the earth |
| US4945991A (en) | 1989-08-23 | 1990-08-07 | Mobile Oil Corporation | Method for gravel packing wells |
| US5113935A (en) * | 1991-05-01 | 1992-05-19 | Mobil Oil Corporation | Gravel packing of wells |
| US5515915A (en) * | 1995-04-10 | 1996-05-14 | Mobil Oil Corporation | Well screen having internal shunt tubes |
| US5868200A (en) * | 1997-04-17 | 1999-02-09 | Mobil Oil Corporation | Alternate-path well screen having protected shunt connection |
| US6227303B1 (en) * | 1999-04-13 | 2001-05-08 | Mobil Oil Corporation | Well screen having an internal alternate flowpath |
| US20050061501A1 (en) * | 2003-09-23 | 2005-03-24 | Ward Stephen L. | Alternate path gravel packing with enclosed shunt tubes |
| EA008563B1 (en) * | 2004-03-11 | 2007-06-29 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | System for sealing an annular space in a wellbore |
| AU2005224376B2 (en) * | 2004-03-11 | 2008-09-04 | Shell Internationale Research Maatschappij B.V. | System for sealing an annular space in a wellbore |
| US8215406B2 (en) | 2006-02-03 | 2012-07-10 | Exxonmobil Upstream Research Company | Wellbore method and apparatus for completion, production and injection |
| MX2008011191A (en) * | 2006-04-03 | 2008-09-09 | Exxonmobil Upstream Res Co | Wellbore method and apparatus for sand and inflow control during well operations. |
| US7562709B2 (en) * | 2006-09-19 | 2009-07-21 | Schlumberger Technology Corporation | Gravel pack apparatus that includes a swellable element |
| US7730940B2 (en) * | 2007-01-16 | 2010-06-08 | Baker Hughes Incorporated | Split body swelling packer |
| GB2459820B (en) * | 2007-03-28 | 2011-11-23 | Shell Int Research | Wellbore system and method of completing a wellbore |
| US7866405B2 (en) * | 2008-07-25 | 2011-01-11 | Halliburton Energy Services, Inc. | Securement of lines to well sand control screens |
-
2008
- 2008-11-11 GB GB0820620A patent/GB2465206B/en not_active Expired - Fee Related
-
2009
- 2009-11-09 CA CA2690039A patent/CA2690039A1/en not_active Abandoned
- 2009-11-10 EP EP09175593A patent/EP2184437A2/en not_active Withdrawn
- 2009-11-10 US US12/615,482 patent/US20100236779A1/en not_active Abandoned
- 2009-11-11 BR BRPI0904641-0A patent/BRPI0904641A2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2465206A (en) | 2010-05-12 |
| BRPI0904641A2 (en) | 2011-02-08 |
| EP2184437A2 (en) | 2010-05-12 |
| GB2465206B (en) | 2011-11-23 |
| US20100236779A1 (en) | 2010-09-23 |
| GB0820620D0 (en) | 2008-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20141112 |