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公开(公告)号：WO2023069715A1
公开(公告)日：2023-04-27
申请号：PCT/US2022/047428
申请日：2022-10-21
摘要： A single well chemical tracer composition comprising core/shell tracer particles and an aqueous fluid is provided. The core/shell tracer particles 102 have a core 106 and a polymer shell 104. At least two tracer chemicals are encapsulated in the core/shell tracer particles. A method of determining residual oil in a reservoir is also provided. The method includes introducing a tracer fluid having the core/shell tracer particles into a wellbore. The reservoir is then maintained for a period of time such that the core/shell particle is ruptured, and the tracer chemicals are released into the reservoir. Then, the method includes producing a produced fluid from the reservoir, measuring the quantity of the tracer chemicals in the produced fluid, and determining a residual oil content of the reservoir based on the measured quantity of the tracer chemicals in the produced fluid.
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公开(公告)号：WO2023009115A1
公开(公告)日：2023-02-02
申请号：PCT/US2021/043539
申请日：2021-07-28
发明人： LI, Leiming , PRINCE, Philippe , VO, Loan , XU, Liang
IPC分类号： C09K8/24 , C09K8/03 , C09K8/80 , E21B43/267
摘要： A method of servicing a wellbore penetrating at least a portion of a subterranean formation, including placing into the wellbore a wellbore servicing fluid including a friction reducer, an iron control agent, and an aqueous fluid. The iron control agent can include a compound according to Structure I, a salt of Structure I, or combinations thereof, wherein R1, R1a, R2, R2a, R3 and R3a are defined as set forth in the specification. The methods in this disclosure can be used for iron mitigation.
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公开(公告)号：WO2022240458A1
公开(公告)日：2022-11-17
申请号：PCT/US2022/015171
申请日：2022-02-04
IPC分类号： C09K8/03 , C09K8/42 , C04B14/06 , C04B2103/406 , C04B22/066 , C04B24/023 , C04B24/38 , C04B28/02 , C04B40/0039 , C09K8/467 , E21B33/14
摘要： A liquid additive composition comprising a particulate material, an organic carrier fluid, a viscosifier, and an alcohol alkoxylate surfactant; wherein the particulate material is substantially insoluble in the organic carrier fluid; wherein the particulate material comprises a water-interactive material and/or a water-insoluble material; wherein the organic carrier fluid comprises a glycol and/or a glycol ether; and wherein the viscosifier comprises amorphous silica. A method comprising (a) contacting a particulate material, an organic carrier fluid, a viscosifier, and an alcohol alkoxylate surfactant to form a mixture; and (b) agitating the mixture to form the liquid additive composition.
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公开(公告)号：WO2021257869A8
公开(公告)日：2021-12-23
申请号：PCT/US2021/037888
申请日：2021-06-17
发明人： HUANG, Jin , LIANG, Feng , LI, Wengang
IPC分类号： C09K8/03 , C09K8/504 , C09K8/506 , C09K8/508 , C09K8/512 , C09K8/516 , C01B2204/04 , C01B2204/32 , C01B32/194 , C01B32/198 , C01P2004/24 , C09K2208/10 , C09K8/502 , C09K8/5045 , E21B43/16
摘要： A graphene oxide Janus nanosheets relatively permeability modifier (RPM) for carbonate formations. The graphene oxide Janus nanosheets RPM may be used to treat a water and hydrocarbon producing carbonate formation to reduce water permeability in the formation and increase the production of hydrocarbons, lire graphene oxide Janus nanosheet RPM includes a first side having negatively charged functional groups and a second side having alkyl groups. The alkyl groups may include C8 to C30 alkyls. The negatively charged functional groups may include carboxyl groups, epoxy groups, and hydroxyl groups. Methods of reducing water permeability of a carbonate formation using the graphene oxide Janus nanosheets RPM and methods of manufacturing the graphene oxide Janus nanosheets RPM are also provided.
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公开(公告)号：WO2021253832A1
公开(公告)日：2021-12-23
申请号：PCT/CN2021/073719
申请日：2021-01-26
摘要： 提供一种涉及天然气安全储运技术领域的水合物分解抑制组合物、耦合增强型固态水合物和提高固态水合物储运稳定性的方法，该水合物分解抑制组合物含有羧甲基淀粉盐和烷基糖苷类表面活性剂，不仅提高了水合物相界的界面稳定性，而且羧甲基淀粉钠和烷基糖苷类表面活性剂分散于水中形成的胶体状溶液能够包覆在水合物的表面形成保护层，这样还能够提高水合物的机械稳定性，增强水合物晶体界面的强度，从而提高了水合物的结构稳定性，由此，抑制了水合物的分解，降低了水合物的分解速率，进一步能够降低水合物的分解量。
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公开(公告)号：WO2021230954A1
公开(公告)日：2021-11-18
申请号：PCT/US2021/020507
申请日：2021-03-02
发明人： JADHAV, Rahul , LENDE, Gunnar , LEWIS, Samuel, J.
摘要： A method comprising (a) contacting a suspension composition, water, and optionally one or more additives to form a wellbore servicing fluid at a location proximate a wellsite; wherein the suspension composition comprises a particulate material, an organic carrier fluid, and a suspension viscosifier; and (b) placing the wellbore servicing fluid in a wellbore penetrating a subterranean formation. The wellsite comprises an offshore platform, a floating vessel, or combinations thereof; and wherein the wellbore is offshore. A suspension composition comprising a particulate material, an organic carrier fluid, and a suspension viscosifier; wherein the particulate material is substantially insoluble in the organic carrier fluid; wherein the particulate material comprises a water-interactive material and/or a water-insoluble material; and wherein the organic carrier fluid comprises a glycol and/or a glycol ether.
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公开(公告)号：WO2021086416A1
公开(公告)日：2021-05-06
申请号：PCT/US2019/063583
申请日：2019-11-27
摘要： A method for bridging a lost circulation zone comprising: providing a lost circulation composition comprising a phosphate ester based lost circulation material and a carrier fluid; introducing the lost circulation composition into a wellbore within a subterranean formation, wherein the subterranean formation comprises a lost circulation zone; and placing the lost circulation composition into the lost circulation zone.
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公开(公告)号：WO2020201081A1
公开(公告)日：2020-10-08
申请号：PCT/EP2020/058703
申请日：2020-03-27
申请人： S.P.C.M. SA
摘要： La présente demande concerne une émulsion inverse eau dans huile comprenant - une huile; - de l'eau; - au moins un copolymère cationique hydrosoluble de masse molaire moyenne supérieure à 3 million de daltons, contenant entre 18 et 32 mol% de monomères cationiques et 68 et 82 mol % de monomères non ioniques; - au moins un agent d'inversion et au moins un agent émulsifiant, le rapport massique R de la quantité totale d'agent d'inversion à la quantité totale d'agent émulsifiant étant supérieur à 1,8, - l'agent d'inversion étant choisi parmi un nonylphénol éthoxylé, ayant préférentiellement entre 4 et 10 éthoxylations; un alcool éthoxylé/propoxylé, ayant préférentiellement des éthoxylations/propoxylations de façon à avoir un nombre total de carbone compris entre C12 et C25, un alcool tridécylique éthoxylé et un alcool gras éthoxylé/propoxylé. - l'agent émulsifiant étant choisi parmi le monooléate de sorbitan, les esters de sorbitan polyethoxyés ou la diéthanolamide des acides gras de l'huile de tall, et son utilisation pour la fracturation hydraulique.
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公开(公告)号：WO2020102149A1
公开(公告)日：2020-05-22
申请号：PCT/US2019/060851
申请日：2019-11-12
申请人： M-I L.L.C.
发明人： YOUNG, Steven , BLUE, Aaron , SHELDON, Josh
摘要： A wellbore fluid may include an oleaginous fluid forming a continuous phase; a non-oleaginous fluid forming a discontinuous phase; at least one emulsifier stabilizing an emulsion of the non-oleaginous continuous phase within the oleaginous continuous phase; and at least one viscosifier dispersed into the oleaginous continuous phase in a concentration of at least 4 ppb; wherein upon subjecting the wellbore fluid to shear rate of at least 10,000 s -1 , the emulsion is disrupted and the non-oleaginous fluid contacts the at least one viscosifier, thereby solidifying the wellbore fluid.
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公开(公告)号：WO2020027885A1
公开(公告)日：2020-02-06
申请号：PCT/US2019/026249
申请日：2019-04-08
摘要： A method of inhibiting gas hydrate formation in downhole fluids, including providing a downhole fluid and mixing the downhole fluid with an aqueous gas thermodynamic hydrate inhibitor formulation to form a downhole fluid mixture. A concentration of lithium chloride in the downhole fluid mixture is at least about 1 wt% and a density of the downhole fluid mixture is in a range of about 1.08 to 1.3 gm/cm 3 at a downhole temperature of about 50F or less and a downhole differential pressure of about 500 psi or higher. An aqueous gas thermodynamic hydrate inhibitor formulation and oil and gas well drilling system including such a formulation are also disclosed.
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