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公开(公告)号：US20190010377A1
公开(公告)日：2019-01-10
申请号：US16118862
申请日：2018-08-31
发明人： Peter J. BOUL , B. Raghava REDDY , Carl THAEMLITZ
摘要： A nanosilica containing fluid system for shale stabilization in a shale formation. The nanosilica containing fluid system comprising a functionalized nanosilica composition operable to react with shale at the surface of the shale formation to form a barrier on the shale formation. The functionalized nanosilica composition comprising a nanosilica particle, the nanosilica particle having a mean diameter, and a functionalization compound, the functionalization compound appended to the surface of the nanosilica particle. And an aqueous-based fluid, the aqueous-based fluid operable to carry the functionalized nanosilica composition into the shale formation. The functionalization compound is an amino silane. The aqueous-based fluid is selected from the group consisting of water, deionized water, sea water, brine, and combinations thereof.
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2.发明申请公开(公告)号：US20190225859A1
公开(公告)日：2019-07-25
申请号：US16372960
申请日：2019-04-02
发明人： B. Raghava REDDY
摘要： A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
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公开(公告)号：US20180127635A1
公开(公告)日：2018-05-10
申请号：US15800926
申请日：2017-11-01
IPC分类号： C09K8/44 , E21B33/14 , C08F222/02 , C08F224/00 , C08K3/26 , C08K3/32 , C08K3/38 , C08K5/00
CPC分类号： C09K8/44 , C08F220/18 , C08F222/02 , C08F222/06 , C08F224/00 , C08K3/26 , C08K3/32 , C08K3/38 , C08K5/0025 , C08K5/17 , C08K2003/262 , C08K2003/321 , C08K2003/387 , C08L2201/54 , C09K8/428 , C09K8/512 , E21B33/14 , C08F2220/1825
摘要： Treating a subterranean formation with a composition including a maleic anhydride copolymer, an amine crosslinker, and a gelling agent. The maleic anhydride copolymer includes first repeat units I and II and at least one of second repeat units III and IV: where each R1 is independently —H, —O(C1-C5) alkyl, or —(C1-C5) alkyl; each R2 is independently —H, —O(C1-C5) alkyl, or —(C1-C5) alkyl; each R3 is independently —OH or —O−M1, each M1 is independently an alkali metal, an alkaline earth metal, an ammonium ion, or a quaternary ammonium ion; and each R4 is independently —NH2 or —OM1. The gelling agent includes at least one of: a calcium chelating agent, a calcium precipitating agent, a pH buffer, an agent reactive with hydroxide, and an acid generating agent, and promotes formation of a gel from the maleic anhydride copolymer and the amine crosslinker in contact with set cement.
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4.发明申请公开(公告)号：US20190225857A1
公开(公告)日：2019-07-25
申请号：US16372892
申请日：2019-04-02
发明人： B. Raghava REDDY
CPC分类号： C09K8/467 , C04B16/10 , C04B28/02 , C04B28/04 , C04B40/0039 , C08L9/10 , C04B24/2611 , C04B2103/0066 , C04B2103/402 , C04B2103/406 , C04B24/2676 , C04B24/2652 , C04B24/2623 , C04B20/0048 , C04B38/10 , C04B2103/0082 , C04B2103/12 , C04B2103/22 , C04B2103/408 , C04B2103/46 , C04B2103/50 , C04B24/163 , C04B24/226
摘要： A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
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5.发明申请公开(公告)号：US20180127636A1
公开(公告)日：2018-05-10
申请号：US15800842
申请日：2017-11-01
IPC分类号： C09K8/512 , C08K13/02 , E21B33/138 , E21B21/00
CPC分类号： C09K8/512 , C08K13/02 , C08L35/00 , C09K8/44 , C09K8/508 , E21B21/003 , E21B33/138
摘要： Treating a subterranean formation with a composition including a maleic anhydride copolymer, an amine crosslinker, and a gel time control agent. The maleic anhydride copolymer includes first repeat units I and II and at least one of second repeat units III and IV: where each R1 is independently —H, —O(C1-C5) alkyl, or —(C1-C5) alkyl; each R2 is independently —H, —O(C1-C5) alkyl, or —(C1-C5) alkyl; each R3 is independently —OH or —O−M1, each M1 is independently an alkali metal, an alkaline earth metal, an ammonium ion, or a quaternary ammonium ion; and each R4 is independently —NH2 or —OM1. The gel time control agent accelerates or retards formation of a gel from the composition compared to a composition having the same percentage by weight of the maleic anhydride copolymer and the amine crosslinker in the absence of the gel time control agent.
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公开(公告)号：US20180127557A1
公开(公告)日：2018-05-10
申请号：US15800933
申请日：2017-11-01
IPC分类号： C08J3/24 , C08F22/06 , C09K8/512 , E21B33/138
CPC分类号： C08J3/24 , C08F22/06 , C08J2335/00 , C08L35/00 , C09K8/44 , C09K8/508 , C09K8/512 , E21B33/138
摘要： Treating a subterranean formation with a composition including a maleic anhydride copolymer and an aminosilane crosslinker. The maleic anhydride copolymer includes first repeat units I and II and at least one of second repeat units III and IV: where each R1 is independently —H, —O(C1-C5) alkyl, or —(C1-C5) alkyl; each R2 is independently —H, —O(C1-C5) alkyl, or —(C1-C5) alkyl; each R3 is independently —OH or —O−M1, each M1 is independently an alkali metal, an alkaline earth metal, an ammonium ion, or a quaternary ammonium ion; and each R4 is independently —NH2 or —OM1. The aminosilane crosslinker has at least one primary amine group. Siloxane bonds may be formed between the aminosilane crosslinker and a siliceous material in contact with the gelled composition in the subterranean formation.
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7.发明申请公开(公告)号：US20190225858A1
公开(公告)日：2019-07-25
申请号：US16372931
申请日：2019-04-02
发明人： B. Raghava REDDY
摘要： A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
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8.发明申请公开(公告)号：US20190218444A1
公开(公告)日：2019-07-18
申请号：US15870374
申请日：2018-01-12
发明人： B. Raghava REDDY
CPC分类号： C09K8/467 , C04B16/10 , C04B28/02 , C04B28/04 , C04B40/0039 , C08L9/10 , C04B24/2611 , C04B2103/0066 , C04B2103/402 , C04B2103/406 , C04B24/2676 , C04B24/2652 , C04B24/2623 , C04B20/0048 , C04B38/10 , C04B2103/0082 , C04B2103/12 , C04B2103/22 , C04B2103/408 , C04B2103/46 , C04B2103/50 , C04B24/163 , C04B24/226
摘要： A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
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9.发明申请公开(公告)号：US20190203099A1
公开(公告)日：2019-07-04
申请号：US16230498
申请日：2018-12-21
CPC分类号： C09K8/467 , C04B20/1037 , C04B24/166 , C04B28/02 , C04B40/0046 , C04B40/0641 , C04B2103/408 , C09K8/487 , E21B33/14 , C04B22/08 , C04B24/26 , C04B2103/12 , C04B2103/20 , C04B2103/44 , C04B2103/46
摘要： Embodiments provide a method of encapsulating a solid cement additive. The method includes the step of applying a base film-forming monomer to the solid cement additive. The method includes the step of forming a coating layer surrounding the solid cement additive. The coating layer includes the base film-forming monomer. The method includes the step of applying an overlay film-forming monomer to the coating layer surrounding the solid cement additive. The method includes the step of reacting the base film-forming monomer and the overlay film-forming monomer to produce a polymer shell. The solid cement additive includes solid particles useful in cementing applications. The polymer shell includes a crosslinked polymer. The polymer shell surrounds the solid cement additive. The polymer shell has a permeability to water allowing controlled release of the solid cement additive.
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