(EP2909433) Controlled swell-rate swellable packer and method 机翻标题: 暂无翻译,请尝试点击翻译按钮。

源语言标题
(EP2909433) Controlled swell-rate swellable packer and method
公开号/公开日
EP2909433 EP2909433 EP2909433 / 2020-03-11 2016-06-22 2015-08-26
申请号/申请日
EP13847947 / 2013-10-03
发明人
GAMSTEDT PONTUSHINKE JENS;
申请人
HALLIBURTON ENERGY SERVICES;
主分类号
IPC分类号
E21B-033/12
摘要
(EP2909433) A controlled swell-rate swellable packer comprises a mandrel; a sealing element, and a jacket. The sealing element is disposed about at least a portion of the mandrel, and the jacket covers at least a portion of an outer surface of the sealing element. The jacket is configured to substantially prevent fluid communication between a fluid disposed outside of the jacket and the portion of the outer surface of the sealing element covered by the jacket.
机翻摘要
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地址
代理人
(EP2909433) Hoffmann Eitle ; Patent- und Rechtsanwälte PartmbB ([DE]) Reg. Nb: 100061036
代理机构
;
优先权号
2012US-61714653 2013WO-US63273
主权利要求
(EP2909433) 1. A controlled swell-rate swellable packer comprising:   a mandrel (210);   a sealing element (220), wherein the sealing element is disposed about at least a portion of the mandrel;   a removable mask on at least a portion of an outer surface (221) of the sealing element, the removable mask comprises void spaces; and   a jacket (230) applied to the sealing element that has the removable mask covering the portion of the outer surface, and wherein the jacket is configured to substantially prevent fluid communication between a fluid disposed outside of the jacket and the portion of the outer surface of the sealing element covered by the jacket, and   wherein the removable mask is configured such that, upon removal, the jacket is applied to only a portion (220b) of the outer surface of the sealing element, yielding an exposed outer surface portion (220a). 2. The controlled swell-rate swellable packer of claim 1, further comprising one or more end stops (240) disposed about the mandrel adjacent the sealing element, wherein the one or more end stops are configured to retain the sealing element about the portion of the mandrel. 3. The controlled swell-rate swellable packer of claim 1 or 2, wherein the sealing element comprises a swellable material. 4. The controlled swell-rate swellable packer of claim 3, wherein the swellable material comprises at least one of:   i) a water-swellable material, wherein the water-swellable material comprises a tetrafluorethylene/propylene copolymer (TFE/P), a starch-polyacrylate acid graft copolymer, a polyvinyl alcohol/cyclic acid anhydride graft copolymer, an isobutylene/maleic anhydride copolymer, a vinyl acetate/acrylate copolymer, a polyethylene oxide polymer, graft-poly(ethylene oxide) of poly(acrylic acid), a carboxymethyl cellulose type polymer, a starch-polyacrylonitrile graft copolymer, polymethacrylate, polyacrylamide, an acrylamide/acrylic acid copolymer, poly(2-hydroxyethyl methacrylate), poly(2-hydroxypropyl methacrylate), a non- soluble acrylic polymer, a highly swelling clay mineral, sodium bentonite, sodium bentonite having as main ingredient montmorillonite, calcium bentonite, derivatives thereof, or combinations thereof; an oil-swellable material, wherein the oil-swellable material comprises an oil- swellable rubber, a natural rubber, a polyurethane rubber, an acrylate/butadiene rubber, a butyl rubber (IIR), a brominated butyl rubber (BUR), a chlorinated butyl rubber (CIIR), a chlorinated polyethylene rubber (CM/CPE), an isoprene rubber, a chloroprene rubber, a neoprene rubber, a butadiene rubber, a styrene/butadiene copolymer rubber (SBR), a sulphonated polyethylene (PES), chlor-sulphonated polyethylene (CSM), an ethylene/acrylate rubber (EAM, AEM), an epichlorohydrin/ethylene oxide copolymer rubber (CO, ECO), an ethylene/propylene copolymer rubber (EPM), ethylene/propylene/diene terpolymer (EPDM), a peroxide crosslinked ethylene/propylene copolymer rubber, a sulphur crosslinked ethylene/propylene copolymer rubber, an ethylene/propylene/diene terpolymer rubber (EPT), an ethylene/vinyl acetate copolymer, a fluoro silicone rubber (FVMQ), a silicone rubber (VMQ), a poly 2,2,1-bicyclo heptene (polynorbornene), an alkylstyrene polymer, a crosslinked substituted vinyl/acrylate copolymer, derivatives thereof, or combinations thereof, and;  a water-and-oil-swellable material, wherein the water-and-oil-swellable material comprises a nitrile rubber (NBR), an acrylonitrile/butadiene rubber, a hydrogenated nitrile rubber (HNBR), a highly saturated nitrile rubber (HNS), a hydrogenated acrylonitrile/butadiene rubber, an acrylic acid type polymer, poly(acrylic acid), polyacrylate rubber, a fluoro rubber (FKM), a perfluoro rubber (FFKM), derivatives thereof, or combinations thereof. 5. The controlled swell-rate swellable packer of any preceding claim, wherein the jacket comprises a primer coating layer, optionally,  wherein the primer coating layer is characterized by a thickness of less than about 10 microns. 6. The controlled swell-rate swellable packer of any preceding claim, wherein the jacket comprises at least one top coating layer. 7. The controlled swell-rate swellable packer of claim 6, wherein the top coating layer comprises plastics, polymeric materials, polyethylene, polypropylene, fluoro-elastomers, fluoropolymers, fluoropolymer elastomers, polytetrafluoroethylene, a tetrafluoroethylene/propylene copolymer (TFE/P), polyamide-imide (PAI), polyimide, polyphenylene sulfide (PPS), or combinations thereof, or,  wherein the top coating layer comprises a flexible coating material or a partially flexible coating material, or,  wherein the top coating layer is characterized by a thickness of from about 10 microns to about 100 microns. 8. The controlled swell-rate swellable packer of any preceding claim, further comprising a retention coating layer, optionally,  wherein the retention coating layer is characterized by a thickness of from about 1 micron to about 100 microns. 9. A method of making a controlled swell-rate swellable packer, comprising:   applying a mask (250) onto at least a portion of an outer surface (221) of a sealing element (220), wherein the   sealing element comprises a swellable material, and wherein the mask comprises void spaces;   applying a jacket (230) to the sealing element when the mask is applied, wherein the mask substantially prevents the application of the jacket except in the void spaces;   removing the mask after applying the jacket; and   providing a controlled swell-rate swellable packer (200). 10. The method of claim 9, further comprising applying a retention coating layer onto the outer surface of the sealing element,  wherein, optionally, the retention coating layer is applied onto an outer surface of the controlled swell-rate swellable packer subsequent to removing the mask. 11. A method of utilizing a controlled swell-rate swellable packer comprising: disposing a tubular string (120) comprising a controlled swell-rate swellable packer (200) according to any one of claims 1 to 8 incorporated therein within a wellbore (114) in a subterranean formation (102); and   activating the controlled swell-rate swellable packer;   wherein the jacket is applied to only a portion (220a) of the outer surface of the sealing element, yielding an exposed outer surface portion (220a). 12. The method of claim 11, further comprising allowing the controlled swell-rate swellable packer to swell an amount between about 105 % to about 500 %, optionally, between about 125 % to about 200 %, based on the volume of the swellable material of the sealing element prior to activating the controlled swell-rate swellable packer. 13. The method of claim 11 or 12, wherein a swell gap of the sealing element increases an amount between about 105 % to about 250 %, optionally, between about 110 % to about 150 % based on the swell gap of the sealing element prior to activating the controlled swell-rate swellable packer 14. The method of claim 11 or 12, wherein the controlled swell-rate swellable packer further comprises a retention coating layer 15. The method of claim 11 or 12, wherein the method further comprises isolating at least two adjacent portions of the wellbore using the controlled swell-rate swellable packer subsequent to activating the controlled swell-rate swellable packer. 16. The method of claim 11, 12 13, 14, or 15, wherein activating the controlled-rate swellable packer comprises contacting at least a portion of the controlled swell-rate packer with a swelling agent, and allowing the sealing element to swell. 17. The method of claim 11, 12, 13, 14, 15 or 16, wherein the sealing element has a linear swell-rate. 18. The method of claim 11, 12, 13, 14, 15 or 16, wherein the sealing element has a non-linear swell-rate. 19. The method of any one of claims 11 to 18, further comprising controlling a swell-rate of the sealing element by varying at least one of: a type and/or composition of a swelling material, a type and/or composition of a jacket, a number of layers in the jacket, a pattern of a mask, a ratio between a portion of an outer surface of a sealing element exposed to a swelling agent and a portion of the outer surface of the sealing element cover by the jacket, a type and/or composition of the swelling agent, or combinations thereof.
法律状态
GRANTED
专利类型码
B1 A4 A1
国别省市代码
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