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1.发明申请
公开(公告)号：WO2022217033A1
公开(公告)日：2022-10-13
申请号：PCT/US2022/023984
申请日：2022-04-08
申请人： CHAMPIONX USA INC.
摘要： The present invention pertains to a composition for crude oil production, comprising an emulsion viscosity reducer (EVR); a scale inhibitor, and a solvent system comprising water, an oil soluble solvent and a co-solvent; to a process for production of crude oil using the compositions; and the use of the compositions as flow improver or viscosity reducer.
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公开(公告)号：WO2022214960A1
公开(公告)日：2022-10-13
申请号：PCT/IB2022/053160
申请日：2022-04-05
摘要： Fracturing or fracking fluids are provided for fracturing a subterranean reservoir for hydrocarbon recovery and related methods. In some embodiments, the fluid comprises lignin, in particular technical lignin, and at least one strain of bacteria capable of biosurfactant production and/or a biosurfactant produced by at least one such isolated strain of bacteria. Also provided is a fracturing method for recovering hydrocarbons from a subterranean formation.
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公开(公告)号：WO2022192032A8
公开(公告)日：2022-09-15
申请号：PCT/US2022/018320
申请日：2022-03-01
IPC分类号： C09K8/035 , B01D17/04 , C09K8/58 , B01D17/047
摘要： A formulation according to the invention that can be utilized in the prevention and/or resolving of water and oil emulsions, is described. These formulations have been found to modify water and oil emulsions, and to be very effective non-emulsifiers / weak emulsifiers and/or demulsifiers, specifically in high brine or highly acidic environments, for water and crude oil emulsions. The formulation comprises at least one ethoxylated alcohol with a molecular structure as shown in formula 1: R-O-(C2H4O)n-H (1) wherein R comprises linear or branched alkyl groups having from 6 to 18 carbon atoms and n is from 3 to 20.
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4.发明申请
公开(公告)号：WO2022115283A1
公开(公告)日：2022-06-02
申请号：PCT/US2021/059645
申请日：2021-11-17
发明人： RECIO III, Antonio , REYES, Enrique Antonio , BEUTERBAUGH, Aaron Michael , BENOIT, Denise Nicole
摘要： A method of enhanced oil recovery comprising placing into a subterranean formation a treatment fluid comprising (i) a compound comprising a phosphonoalkyl moiety; and (ii) a base fluid wherein a pH of the treatment fluid ranges from about 5 to about 9 wherein the treatment fluid is placed into the subterranean formation via one or more injection wells and travels a distance into the subterranean formation in a direction of one or more recovery/production wells. A method of servicing a wellbore comprising introducing a treatment fluid comprising a pore-connectivity enhancer comprising a phosphonoalkyl moiety; (a) a surfactant composition comprising a fatty acid alkoxylate, an amine oxide, alkanolamide, an alkoxylated alcohol, an alkylamine alkoxylate, an alkyl glycoside surfactant or a combination thereof; and a base fluid, wherein the composition has a pH of from about 5 to about 9 and wherein introducing comprises thermal injection, gas injection or chemical injection.
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公开(公告)号：WO2022016001A1
公开(公告)日：2022-01-20
申请号：PCT/US2021/041861
申请日：2021-07-15
摘要： The invention is directed to methods for improving the recovery of oil from subterranean geological formations, such as unconventional reservoirs. The invention is also directed to methods for evaluating the efficiency of inject-soak-produce gas injection methods for oil recovery in unconventional reservoirs. In one embodiment, a method for evaluating the efficiency of oil recovery from an unconventional reservoir rock sample includes characterizing the rock sample by imaging the rock sample using a nano-CT scanner and/or scanning electron microscopy (SEM); cleaning the rock sample by flowing solvent through it; saturating the rock sample with crude oil; and establishing initial water saturation in the rock sample.
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公开(公告)号：WO2021228546A1
公开(公告)日：2021-11-18
申请号：PCT/EP2021/060953
申请日：2021-04-27
发明人： DELBOS, Aline , BENOIT, Yves
摘要： La présente invention concerne un procédé de traitement d'une formation souterraine par injection d'une solution aqueuse qui comporte un composé chimique biocide et un polymère viscosifiant.
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公开(公告)号：WO2021133414A1
公开(公告)日：2021-07-01
申请号：PCT/US2019/068769
申请日：2019-12-27
摘要： A method of stimulating a subterranean carbonate formation includes delivering a composition comprising a hydrophobically modified polymer, a phosphorylated alkyl amino polycarboxylic acid, and a base treatment acid into the subterranean formation; and contacting the subterranean carbonate formation with the composition to form conductive flowpaths in the subterranean carbonate formation. The method may further include producing hydrocarbons from the subterranean carbonate formation. A composition for stimulating a subterranean formation includes a hydrophobically modified polymer; a phosphorylated alkyl amino polycarboxylic acid; and a base treatment acid.
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公开(公告)号：WO2021062072A1
公开(公告)日：2021-04-01
申请号：PCT/US2020/052599
申请日：2020-09-25
摘要： A treatment additive for hydraulic fracturing made of heated silica to create amorphous silicate with a Mohrs hardness between 4.5 and 6 and a particles distribution with maximum diameter between 5 and 2600 microns that has been heated and shaped into amorphous shapes with large surface area to weight ratio and ultra-low settling velocity used to prop microfractures distal from well bore, especially in low viscosity and high temperature wells. The microparticle size and shape allow the treatment to effectively hold microfractures open, stimulate backpressure, and prevent leakoff; which has the added benefit of improving primary fracture development; refrac and frac protect productivity; and reduces the likelihood of interference between offset wells. An additional benefit is that the treatment doesn't contain crystalline silica.
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9.发明申请
公开(公告)号：WO2021021101A1
公开(公告)日：2021-02-04
申请号：PCT/US2019/043891
申请日：2019-07-29
发明人： PINDIPROLU, Sairam, Ks , NIMANE, Sughir, Maruti , PATIL, Sandip, Prabhakar , PATIL, Rahul, Chandrakant
摘要： The current method comprises producing a loss control blend by selecting blend ingredients that contribute to thixotropy of the blend, density of the blend, and compressive strength of the set blend, wherein at least one of the blend ingredients contributes positively to all three of these attributes.
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公开(公告)号：WO2020252550A1
公开(公告)日：2020-12-24
申请号：PCT/BR2020/050217
申请日：2020-06-18
发明人： SABADINI, Edvaldo , DE ALMEIDA, Rafael Valladares , BASSANI, Gabriel Soares , BERNARDINELLI, Oigres Daniel , VILELA, Victor Augusto Licio Garcia , DE OLIVEIRA, Luís Fernando Lamas , MUÑOZ, Eddy Ruidiaz
IPC分类号： C09K8/58
摘要： A presente invenção insere-se no campo da Engenharia de Reservatórios, mais particularmente, a uma composição para método de otimização na recuperação avançada de petróleo e ao método para otimização na recuperação avançada de petróleo compreendendo a injeção da referida composição. Dita composição revelou-se eficaz em obter melhor rendimento na recuperação de petróleo presente em rochas carbonáticas.
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