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公开(公告)号：WO2022040076A1
公开(公告)日：2022-02-24
申请号：PCT/US2021/046123
申请日：2021-08-16
发明人： AGRAWAL, Devesh , SADANA, Anil , KOVALCHUK, Anton
摘要： A process for the manufacture of a degradable polycyanurate bulk molding composition includes: contacting a liquid cyanate ester monomer with an additive material and a polymerization catalyst to form a reaction mixture; maintaining a temperature of the reaction mixture at about 80°C to about 100°C to form a polycyanurate product having a viscosity of about 120 to about 200 centipoise at 23°C; heating a reinforcing filler at a temperature of about 50 to about 150°C to form a pre-heated reinforcing filler; and blending the polycyanurate product with the pre-heated reinforcing filler to form the degradable polycyanurate bulk molding composition. The bulk molding composition can be used to form a degradable polycyanurate article.
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2.发明申请
公开(公告)号：WO2022016174A1
公开(公告)日：2022-01-20
申请号：PCT/US2021/070836
申请日：2021-07-07
发明人： SADANA, Anil , DUAN, Ping
IPC分类号： E21B43/08 , E21B43/12 , B01D2201/06 , B01D2325/28 , B01D2325/32 , B01D39/00 , B01D71/32 , E21B43/082
摘要： A fluid control device includes a support structure configured to be deployed to a selected location in a borehole, and a filtration medium disposed at the support structure and configured to filter a fluid, the filtration medium configured to be compacted from an initial shape to a compacted shape prior to deployment in the borehole. The filtration medium includes a first polymeric material configured to withstand a temperature at the selected location, the first polymeric material forming a porous structure including a plurality of fluid passages, and a second polymeric material including a shape memory polymer disposed within the fluid passages, the shape memory polymer configured to expand in the plurality of fluid passages and cause the filtration medium to expand in the borehole.
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公开(公告)号：WO2022170349A1
公开(公告)日：2022-08-11
申请号：PCT/US2022/070532
申请日：2022-02-04
发明人： KOVALCHUK, Anton , SADANA, Anil
IPC分类号： F16L55/24
摘要： A sand control tool including a base pipe having a radial port through a wall thereof, a plurality of volume increasing members disposed upon the base pipe, a filtration segment disposed upon the base pipe and disposed between and in physical contact with ones of the plurality of members, and a cover disposed radially outwardly upon the plurality of members and plurality of segments. An embodiment of a sand control tool including a base pipe having a radial port through a wall thereof, a volume increasing member helically disposed upon the base pipe, a filtration segment helically disposed upon the base pipe adjacent the member, and a cover disposed radially outwardly upon the member and segment.
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公开(公告)号：WO2022006597A1
公开(公告)日：2022-01-06
申请号：PCT/US2021/070816
申请日：2021-07-01
发明人： KOVALCHUK, Anton , SADANA, Anil , VINOD, Soumya
IPC分类号： E21B43/08 , E21B43/25 , C08G59/26 , C08J9/14 , C08J9/00 , E21B43/082 , E21B43/35 , E21B43/38
摘要： A fluid control device includes a support structure configured to be deployed in a borehole and a filtration component disposed at the support structure. The filtration component includes a porous medium made from a shape memory epoxy, the shape memory epoxy including a soft segment monomer and a hard segment monomer, the porous medium configured to be compacted from an initial shape to a compacted shape, deployed in the borehole, and subsequently expanded due to a downhole temperature to conform to a surface of the borehole.
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公开(公告)号：WO2022006590A1
公开(公告)日：2022-01-06
申请号：PCT/US2021/070794
申请日：2021-06-30
发明人： SADANA, Anil , AGRAWAL, Devesh
IPC分类号： E21B43/08 , E21B43/10 , E21B34/06 , B01D2201/04 , B01D2239/0291 , B01D2239/1208 , B01D35/02 , B01D39/12 , B01D39/1676 , E21B43/082
摘要： A fluid control device includes a support structure configured to be deployed in a borehole, and a filtration component disposed at the support structure, the filtration component including a porous medium made from a thermoplastic polymer material, the porous medium including an open cell foam. The porous medium has a porosity selected to cause the porous medium to exhibit shape memory behavior, and the porous medium is configured to be compacted from an initial shape to a compacted shape, deployed in the borehole, and subsequently expanded due to a downhole temperature to conform to a surface of the borehole.
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公开(公告)号：WO2020205098A1
公开(公告)日：2020-10-08
申请号：PCT/US2020/019874
申请日：2020-02-26
发明人： KOVALCHUK, Anton , SADANA, Anil
IPC分类号： C09K8/46 , C09K8/44 , E21B33/138 , E21B43/12 , E21B33/12
摘要： A method for operating in a borehole comprises disposing in a downhole environment an article comprising a bismaleimide composite which comprises a polybismaleimide and a disintegrating agent; exposing the article to an aqueous fluid at a temperature of about 25 o C to about 300 o C; and disintegrating the article.
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公开(公告)号：WO2020190423A1
公开(公告)日：2020-09-24
申请号：PCT/US2020/017721
申请日：2020-02-11
发明人： KUMAR, Deepak , SADANA, Anil , JOHNSON, Michael
摘要： A method for operating in a borehole comprises disposing in a downhole environment a system comprising a tubular having a passage and a first restriction positioned inside the tubular; engaging a restrictor with the first restriction to block the passage; injecting a treatment fluid into the tubular, the treatment fluid comprising an invert emulsion, a carboxylic acid ester, or a combination comprising at least one of the foregoing; and degrading and removing the first restriction.
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