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公开(公告)号：US20190093005A1
公开(公告)日：2019-03-28
申请号：US16198187
申请日：2018-11-21
摘要： A fracturing fluid including a mixture of an aqueous copolymer composition including a copolymer, the copolymer having 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or a salt thereof, and a crosslinker. The crosslinker includes a metal, and the weight ratio of the metal to the copolymer is in a range of 0.01 to 0.08. Treating a subterranean formation includes introducing the fracturing fluid into a subterranean formation, and crosslinking the fracturing fluid in the subterranean formation to yield a crosslinked fracturing fluid. The crosslinked fracturing fluid has a viscosity of at least 500 cP for at least 80 minutes when the gel is subjected to a shear rate of 40 s−1 at a temperature in a range of 300° F. to 400° F.
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公开(公告)号：US10106733B2
公开(公告)日：2018-10-23
申请号：US15889916
申请日：2018-02-06
IPC分类号： C09K8/80 , E21B43/267
摘要： Viscosifying proppants including proppant particles coated with a CO2-philic coating in which the CO2-philic coating has a solvable portion that viscosifies a CO2-based fluid when the viscosifying proppant is added to the CO2-based fluid are provided. Methods of making viscosifying proppants are also provided that include coating proppant particles with a precursor material of a CO2-philic material, and polymerizing the precursor material to form a viscosifying proppant. Viscous hydraulic fracturing fluids include a CO2-based fluid and the viscosifying proppants and methods of treating subterranean formations that include contacting a subterranean formation with a viscous hydraulic fracturing fluid and propagating at least one subterranean fracture are also provided.
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3.发明授权公开(公告)号：US10047279B2
公开(公告)日：2018-08-14
申请号：US15581408
申请日：2017-04-28
摘要： In accordance with one or more embodiments, this disclosure describes a viscoelastic surfactant fluid for a subterranean formation comprising: brine solution; at least one polyacrylamide viscosity modifier with a weight averaged molecular weight (Mw) from 250,000 g/mol to 40,000,000 g/mol; and a viscoelastic surfactant according to formula (I): where R1 is a saturated or unsaturated hydrocarbon group of from 17 to 29 carbon atoms, R2 and R3 are each independently selected from a straight chain or branched alkyl or hydroxyalkyl group of from 1 to 6 carbon atoms; R4 is selected from H, hydroxyl, alkyl or hydroxyalkyl groups of from 1 to 4 carbon atoms; k is an integer of from 2-20; m is an integer of from 1-20; and n is an integer of from 0-20.
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公开(公告)号：US20170066959A1
公开(公告)日：2017-03-09
申请号：US15254173
申请日：2016-09-01
摘要： Provided in this disclosure, in part, are methods, compositions, and systems for degrading organic matter, such as kerogen, in a subterranean formation. Further, these methods, compositions, and systems allow for increased hydraulic fracturing efficiencies in subterranean formations, such as unconventional rock reservoirs. Also provided in this disclosure is a method of treating kerogen in a subterranean formation including placing in the subterranean formation a composition that includes a first oxidizer including a persulfate and a second oxidizer including a bromate.
摘要翻译： 在本公开中提供的部分是用于降解地下地层中的有机物质如干酪根的方法，组合物和系统。 此外，这些方法，组合物和系统允许在地下地层（例如非常规岩石储层）中增加水力压裂效率。 本公开还提供了一种在地下地层中处理干酪根的方法，包括在地下地层中放置包括包含过硫酸盐的第一氧化剂和包含溴酸盐的第二氧化剂的组合物。
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公开(公告)号：US11174178B2
公开(公告)日：2021-11-16
申请号：US16723722
申请日：2019-12-20
IPC分类号： C02F1/52 , C02F5/10 , C02F1/68 , C02F101/10 , C02F103/08
摘要： A method includes mixing seawater with a two-part additive system configured to precipitate sulfate from the seawater; removing the sulfate precipitates from the seawater; and delivering the seawater into an oilfield reservoir.
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公开(公告)号：US10435617B2
公开(公告)日：2019-10-08
申请号：US16382055
申请日：2019-04-11
摘要： Provided in this disclosure, in part, are methods, compositions, and systems for degrading organic matter, such as kerogen, in a subterranean formation. Further, these methods, compositions, and systems allow for increased hydraulic fracturing efficiencies in subterranean formations, such as unconventional rock reservoirs. Also provided in this disclosure is a method of treating kerogen in a subterranean formation including placing in the subterranean formation a composition that includes a first oxidizer including a persulfate and a second oxidizer including a bromate.
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7.发明申请公开(公告)号：US20180230366A1
公开(公告)日：2018-08-16
申请号：US15702315
申请日：2017-09-12
IPC分类号： C09K8/80 , E21B43/267
CPC分类号： C09K8/805 , C09K8/70 , E21B43/255 , E21B43/267
摘要： Viscosifying proppants including proppant particles coated with a CO2-philic coating in which the CO2-philic coating has a solvable portion that viscosifies a CO2-based fluid when the viscosifying proppant is added to the CO2-based fluid are provided. Methods of making viscosifying proppants are also provided that include coating proppant particles with a precursor material of a CO2-philic material, and polymerizing the precursor material to form a viscosifying proppant. Viscous hydraulic fracturing fluids include a CO2-based fluid and the viscosifying proppants and methods of treating subterranean formations that include contacting a subterranean formation with a viscous hydraulic fracturing fluid and propagating at least one subterranean fracture are also provided.
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公开(公告)号：US20170355899A1
公开(公告)日：2017-12-14
申请号：US15617818
申请日：2017-06-08
摘要： Gelled fluids include a gellable organic solvent, an aluminum crosslinking compound, and a mutual solvent. The gelled fluids may be prepared by combining an aluminum crosslinking compound and a first volume of a gellable organic solvent to form a pre-solvation mixture; gelling the pre-solvation mixture to form a pre-solvated gel; combining the pre-solvated gel with a formulation fluid to form a gellable mixture, the formulation fluid comprising a second volume of the gellable organic solvent; and gelling the gellable mixture to form the gelled fluid.
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9.发明申请公开(公告)号：US20170327722A1
公开(公告)日：2017-11-16
申请号：US15581449
申请日：2017-04-28
CPC分类号： C09K8/035 , C09K8/06 , C09K8/602 , C09K8/68 , C09K8/74 , C09K2208/10 , C09K2208/26 , C09K2208/30
摘要： In accordance with one or more embodiments, this disclosure describes a viscoelastic fluid for a subterranean formation comprising: viscoelastic surfactant comprising the general formula: where R1 is a saturated or unsaturated hydrocarbon group of from 17 to 29 carbon atoms, R2 and R3, are each independently selected from a straight chain or branched alkyl or hydroxyalkyl group of from 1 to 6 carbon atoms; R4 is selected from H, hydroxyl, alkyl or hydroxyalkyl groups of from 1 to 4 carbon atoms; k is an integer of from 2-20; m is an integer of from 1-20; and n is an integer of from 0-20; brine solution; and at least one nanoparticle viscosity modifier comprising a particle size of 0.1 to 500 nanometers, or 0.1 to 100 nanometers.
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公开(公告)号：US20170081223A1
公开(公告)日：2017-03-23
申请号：US15266335
申请日：2016-09-15
IPC分类号： C02F1/52
CPC分类号： C02F1/5272 , C02F1/683 , C02F5/10 , C02F2101/101 , C02F2103/08 , C02F2303/22
摘要： A method includes mixing seawater with a two-part additive system configured to precipitate sulfate from the seawater; removing the sulfate precipitates from the seawater; and delivering the seawater into an oilfield reservoir.
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