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公开(公告)号：US20230361502A1
公开(公告)日：2023-11-09
申请号：US17738387
申请日：2022-05-06
IPC分类号： H01R13/52 , H01R13/533
CPC分类号： H01R13/5216 , H01R13/5202 , H01R13/5221 , H01R13/533
摘要： A seal for use within a hydrocarbon environment including a core and a shell that is coupled to the core. The core includes an elastomeric core material with a first modulus. The shell includes a shell material with a second modulus that is lesser than the first modulus. The core and the shell can be positioned to generate a pressure and electrical seal at a sealing interface.
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公开(公告)号：US20230082733A1
公开(公告)日：2023-03-16
申请号：US17474592
申请日：2021-09-14
发明人： Sandeep Thatathil , Shashwat Shukla , Arpana Singh
摘要： The present disclosure provides elastomer blends comprising mixtures of partially fluorinated elastomers, such as tetrafluoroethylene propylene elastomers (FEPM or TFEP) and fluorocarbon rubbers, such as vinylidene fluoride-based elastomers (FKM or FEP). The elastomer blends can be prepared using two-roll mills, internal mixers, or other mixing technique and can be molded into seals, gaskets, o-rings or other articles using extrusion, injection molding, compression molding or the like. The resultant elastomeric articles can provide good sealing performance, including at moderate or low temperatures, and exhibit good chemical compatibility and resistance when exposed to common wellbore environments. In some cases, the elastomer blends can provide performance characteristics previously only available from perfluorinated elastomers (FFKM), but without requiring the complex processing conditions associated with preparing perfluorinated elastomers.
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3.发明公开公开(公告)号：US20240343887A1
公开(公告)日：2024-10-17
申请号：US18753875
申请日：2024-06-25
发明人： Shashwat Shukla , Arpana Singh , Sandeep Thatathil
CPC分类号： C08K3/08 , E21B33/10 , C08K2003/085 , C08K2003/0893 , E21B2200/08
摘要： Manufacturing a dissolvable downhole hydraulic frac tool member, including providing water-soluble bulk metallic glass (BMG) particles, providing water-soluble thermoplastic polymer particles and mixing together to form a BMG-polymer blend. Heating the BMG-polymer blend to a temperature where the BMG particles are superplastic, the water-soluble thermoplastic polymer particles are moldable, and the BMG particles have a temperature of superplastic flowability that is in a moldability temperature range of the water-soluble thermoplastic polymer and are embedded in a matrix of the thermoplastic polymer to thereby form a BMG-polymer composition; and then;
forming the BMG-polymer composition into the frac tool member.-
公开(公告)号：US12031009B2
公开(公告)日：2024-07-09
申请号：US17847849
申请日：2022-06-23
发明人： Shashwat Shukla , Arpana Singh , Sandeep Thatathil
CPC分类号： C08K3/08 , E21B33/10 , C08K2003/085 , C08K2003/0893 , E21B2200/08
摘要： A downhole hydraulic frac tool for use in a hydraulic fracturing system, the frac tool comprising a dissolvable frac tool member that includes a water-dissolvable composition, the composition including: a water-soluble thermoplastic polymer; and water-soluble bulk metallic glass (BMG) particles, wherein: the BMG particles are embedded within a matrix of the water-soluble thermoplastic polymer, the BMG particles have a greater tensile strength than a tensile strength the water-soluble thermoplastic polymer, and the BMG particles have a higher fracture toughness than a fracture toughness the water-soluble thermoplastic polymer. A method of manufacturing a dissolvable downhole hydraulic frac tool member and, a hydraulic fracturing system associated with a wellbore in which dissolvable downhole hydraulic frac tools of the disclosure can be used, are also disclosed.
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公开(公告)号：US11999897B2
公开(公告)日：2024-06-04
申请号：US17474592
申请日：2021-09-14
发明人： Sandeep Thatathil , Shashwat Shukla , Arpana Singh
CPC分类号： C09K8/5083 , C08F10/06 , C08F14/26 , C08F14/28 , C08L15/02
摘要： Elastomer blends comprising mixtures of partially fluorinated elastomers, such as tetrafluoroethylene propylene elastomers (FEPM or TFEP) and fluorocarbon rubbers, such as vinylidene fluoride-based elastomers (FKM or FEP), can be prepared using two-roll mills, internal mixers, or other mixing technique and can be molded into seals, gaskets, o-rings or other articles using extrusion, injection molding, compression molding or the like. The resultant elastomeric articles can provide good sealing performance, including at moderate or low temperatures, and exhibit good chemical compatibility and resistance when exposed to common wellbore environments. In some cases, the elastomer blends can provide performance characteristics previously only available from perfluorinated elastomers (FFKM), but without requiring the complex processing conditions associated with preparing perfluorinated elastomers.
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公开(公告)号：US20240287377A1
公开(公告)日：2024-08-29
申请号：US18657276
申请日：2024-05-07
发明人： Sandeep Thatathil , Shashwat Shukla , Arpana Singh
CPC分类号： C09K8/5083 , C08F10/06 , C08F14/26 , C08F14/28 , C08L15/02
摘要： The present disclosure provides elastomer blends comprising mixtures of partially fluorinated elastomers, such as tetrafluoroethylene propylene elastomers (FEPM or TFEP) and fluorocarbon rubbers, such as vinylidene fluoride-based elastomers (FKM or FEP). The elastomer blends can be prepared using two-roll mills, internal mixers, or other mixing technique and can be molded into seals, gaskets, o-rings or other articles using extrusion, injection molding, compression molding or the like. The resultant elastomeric articles can provide good sealing performance, including at moderate or low temperatures, and exhibit good chemical compatibility and resistance when exposed to common wellbore environments. In some cases, the elastomer blends can provide performance characteristics previously only available from perfluorinated elastomers (FFKM), but without requiring the complex processing conditions associated with preparing perfluorinated elastomers.
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7.发明公开公开(公告)号：US20230416494A1
公开(公告)日：2023-12-28
申请号：US17847849
申请日：2022-06-23
发明人： Shashwat Shukla , Arpana Singh , Sandeep Thatathil
CPC分类号： C08K3/08 , E21B33/10 , C08K2003/0893 , C08K2003/085 , E21B2200/08
摘要： A downhole hydraulic frac tool for use in a hydraulic fracturing system, the frac tool comprising a dissolvable frac tool member that includes a water-dissolvable composition, the composition including: a water-soluble thermoplastic polymer; and water-soluble bulk metallic glass (BMG) particles, wherein: the BMG particles are embedded within a matrix of the water-soluble thermoplastic polymer, the BMG particles have a greater tensile strength than a tensile strength the water-soluble thermoplastic polymer, and the BMG particles have a higher fracture toughness than a fracture toughness the water-soluble thermoplastic polymer. A method of manufacturing a dissolvable downhole hydraulic frac tool member and, a hydraulic fracturing system associated with a wellbore in which dissolvable downhole hydraulic frac tools of the disclosure can be used, are also disclosed.
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公开(公告)号：US20230340855A1
公开(公告)日：2023-10-26
申请号：US17724745
申请日：2022-04-20
CPC分类号： E21B33/1208 , E21B23/06 , B29C44/02 , B29C44/505 , B29C63/06 , B29C44/3415 , B29K2105/046
摘要： Swell packer assemblies for providing a physical barrier inside a wellbore, and methods of using such swell packer assemblies, are provided. In one embodiment, the swell packer includes a substantially tubular member; and a seal element disposed on the substantially tubular member, the seal element including an elastomeric swellable material that comprises: a closed cell material having a plurality of pore spaces therein; and a compressible gas located within at least a portion of the plurality of pore spaces.
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