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1.发明公开公开(公告)号：US20240271032A1
公开(公告)日：2024-08-15
申请号：US18464691
申请日：2023-09-11
申请人： CHEVRON U.S.A. INC.
发明人： Dustin L. WALKER , Gayani W. PINNAWALA , Nabijan NIZAMIDIN , Varadarajan DWARAKANATH , Guo-Qing TANG , Dustin J. LOWRY , Tetsuo Art INOUYE , Taimur MALIK
CPC分类号： C09K8/604 , C09K8/602 , C09K8/68 , C09K8/74 , C09K8/80 , C09K8/86 , E21B43/267 , E21B43/27 , E21B47/11 , C09K2208/10 , C09K2208/12 , C09K2208/26 , C09K2208/28 , C09K2208/32
摘要： Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises an anionic surfactant and optionally one or more secondary surfactants.
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公开(公告)号：US12054668B2
公开(公告)日：2024-08-06
申请号：US17041857
申请日：2019-03-19
发明人： Wei Hoe Sim , Kah Howe Chan , Yok Peng Chan
CPC分类号： C09K8/524 , C09K8/528 , C09K2208/26
摘要： An emulsion composition of treating near-wellbore obstruction comprising an aqueous phase in 0.5 to 40% by weight of total composition; an non-aqueous phase in 15 to 90% by weight of total composition; a surfactant un 2 to 60% by weight of total composition; and a compound having a Chemical structure I in 1 to 30% by weight of total composition
R1—CONH—[R2—NH—R3]n—HNOC—R4 (Chemical structure I)
in which R1, R2, R3 and R4 are linear, branched or aromatic carbon-containing substituents having 2 to 26 carbon atoms and n is an integer ranges from 1 to 100, wherein each of the substituents comprises an alkyl group, a carbonyl group, a carboxylic group, an amine group, or an amide group.-
公开(公告)号：US11773312B2
公开(公告)日：2023-10-03
申请号：US17709825
申请日：2022-03-31
CPC分类号： C09K8/52 , C09K8/035 , C09K2208/26
摘要： The present disclosure provides methods, compositions, and systems directed to filter cake removal embodying a delayed breaker fluid for oil-based drill-in fluids. A wellbore treatment method comprising: introducing a delayed breaker fluid into a wellbore, wherein the delayed breaker fluid comprises an aqueous base fluid, an acid precursor, and a carbodiimide; and contacting a filter cake in the wellbore with the delayed breaker fluid such that the filter cake is at least partially degraded by acid released from the acid precursor.
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4.发明公开公开(公告)号：US20230220267A1
公开(公告)日：2023-07-13
申请号：US18152714
申请日：2023-01-10
CPC分类号： C09K8/5086 , C09K8/516 , E21B43/27 , C09K2208/10 , C09K2208/26
摘要： The present invention provides a device, system, and method that eliminates the short-circuiting and improves energy sweep in geothermal reservoirs.
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公开(公告)号：US20190233714A1
公开(公告)日：2019-08-01
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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公开(公告)号：US10072202B2
公开(公告)日：2018-09-11
申请号：US14417197
申请日：2013-07-26
申请人： RHODIA OPERATIONS
发明人： Dominique Labarre , James Wilson
IPC分类号： C09K8/52 , C09K8/524 , C08F22/38 , C08F220/06 , C09K8/528
CPC分类号： C09K8/524 , C08F22/385 , C08F220/06 , C09K8/52 , C09K8/528 , C09K2208/10 , C09K2208/26
摘要： The invention relates to compositions for inhibiting the formation of deposits in underground formations such as oil wells, comprising, in a solvent medium, polymers P resulting from the radical copolymerization, preferably controlled and in solution, of a mixture including: monomers having an ethylenically unsaturated structure, selected from monomers that form, by polymerization, a polymer that has an effect of inhibiting the formation of organic and/or inorganic deposits; and polyethylenically unsaturated, cross-linking monomers carrying at least one group that can be cleaved between two ethylene unsaturations, said polymers P being present in the solvent in the form of dispersed nanogels.
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公开(公告)号：US10066149B2
公开(公告)日：2018-09-04
申请号：US15526806
申请日：2015-11-23
CPC分类号： C09K8/602 , C09K8/035 , C09K8/42 , C09K8/68 , C09K8/74 , C09K8/86 , C09K2208/26 , C09K2208/30 , E21B43/04 , E21B43/26
摘要： Compositions and methods are provided for delayed breaking of viscoelastic surfactant gels inside subterranean formations. Breaking is accomplished without mechanical intervention or use of a second fluid. The delayed breaking agent is selected from alkyl ether phosphates and salts thereof, alkylaryl ether phosphates and salts thereof, alkyl sulfates and salts thereof, alkylaryl sulfates and salts thereof, alkyl ether sulfates and salts thereof, alkylaryl ether sulfates and salts thereof, and mixtures of any of the foregoing. The viscoelastic surfactant can be a zwitterionic surfactant, and can be selected from the group consisting of sultaines, betaines, and amidoamine oxides.
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公开(公告)号：US10059869B2
公开(公告)日：2018-08-28
申请号：US15035977
申请日：2014-02-20
发明人： Dipti Singh , Janette Cortez , James William Ogle
IPC分类号： C09K8/12 , C09K8/68 , C09K8/88 , C09K8/90 , C04B28/02 , C04B28/14 , C09K8/10 , C09K8/52 , C09K8/72 , C09K8/528
CPC分类号： C09K8/12 , C04B28/02 , C04B28/14 , C09K8/10 , C09K8/52 , C09K8/528 , C09K8/68 , C09K8/685 , C09K8/725 , C09K8/88 , C09K8/882 , C09K8/887 , C09K8/90 , C09K2208/08 , C09K2208/24 , C09K2208/26 , C09K2208/32 , Y02W30/92 , Y02W30/94 , C04B7/02 , C04B7/32 , C04B14/047 , C04B14/06 , C04B14/10 , C04B14/106 , C04B14/108 , C04B18/08 , C04B18/082 , C04B18/141 , C04B20/0048 , C04B24/02 , C04B24/38 , C04B2103/0088 , C04B2103/22 , C04B2103/40 , C04B2103/408 , C04B2103/44 , C04B2103/46 , C04B2103/48 , C04B2103/54 , C04B2103/608 , C04B2103/61
摘要： A method comprises obtaining or providing a treatment fluid comprising a viscosifier polymer; an aqueous carrier fluid comprising high total dissolved solids; and a polymer composition comprising at least one of polyvinyl alcohol and polylactic acid. In some embodiments, the treatment fluid has a viscosity at 140C and at a shear rate of about 0.1 s−1 to about 1 s−1 of about 1,500 cP to about 10,000 cP. The method includes placing the treatment fluid in a subterranean formation.
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公开(公告)号：US20180112124A1
公开(公告)日：2018-04-26
申请号：US15789219
申请日：2017-10-20
申请人： Covestro LLC
发明人： Mark D. Conner , James A. Thompson-Colón , Philip R. Jones , Natalee Jo-Ann Smith , Paul S. Hassett
IPC分类号： C09K8/80 , C09K8/68 , C09K8/66 , A01N59/20 , E21B43/267
CPC分类号： C09K8/805 , A01N25/26 , A01N59/20 , C09K8/524 , C09K8/605 , C09K8/665 , C09K8/68 , C09K2208/12 , C09K2208/20 , C09K2208/26 , C09K2208/28 , C09K2208/32 , E21B33/13 , E21B37/06 , E21B41/02 , E21B43/267 , A01N33/12 , A01N35/02 , A01N57/34 , A01N59/00 , A01N59/16
摘要： The present invention provides for the use of polyurethane dispersions to adhere functional chemicals on to proppants. The present invention offers a way of assuring that the chemical is released in the formation and is released slowly over time.
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公开(公告)号：US20180105733A1
公开(公告)日：2018-04-19
申请号：US15294823
申请日：2016-10-17
发明人： Blake McMahon , Bruce MacKay
CPC分类号： C09K8/64 , C09K8/52 , C09K8/565 , C09K2208/26 , C09K2208/30 , E21B43/04
摘要： A method of increasing the viscosity of a gelled organic-based fluid is disclosed. The method includes forming the gelled organic-based fluid by combining an organic solvent, an alkaline agent in the form of particles present in the gelled organic-based fluid in an amount from about 0.001 to about 0.02 pounds per gallon of the gelled organic-based fluid, a gelling agent, and a metal crosslinker. The gelled organic-based fluid having a viscosity which is greater than a viscosity of an equivalent gelled organic-based fluid not including the alkaline agent.
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