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1.发明公开公开(公告)号：US20240093081A1
公开(公告)日：2024-03-21
申请号：US18468163
申请日：2023-09-15
发明人： Elizabeth Contreras
CPC分类号： C09K8/512 , C04B24/2664 , C04B26/06
摘要： This disclosure relates to compositions including a poly-alkene maleic anhydride copolymer, a PEG, and a crosslinker selected from an ethyleneamine, a benzenetricarboxylic acid, a benzimidazole, and combinations thereof. The poly-alkene maleic anhydride copolymer includes repeat units I and II:
where R1, R1′, R2, and R2′ are each independently selected from —H and —(C1-C5)alkyl. The disclosure also provides methods of treating a subterranean formation or cement construction using the compositions.-
公开(公告)号：US20230323750A1
公开(公告)日：2023-10-12
申请号：US18297419
申请日：2023-04-07
发明人： Yifei LIU , Caili DAI , Guang ZHAO , Chenwei ZOU , Ning YANG , Qing YOU , Mingwei ZHAO , Yining WU , Lin LI , Yongpeng SUN
CPC分类号： E21B33/13 , C09K8/512 , C09K8/5086 , C09K8/584
摘要： The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing. The system can be simply and rapidly prepared, is easy for deep injection by adjusting the size of gel dispersion particles, is wide in action range, high in stability and long in effective period of action, can avoid reservoir pollution, and does not affect the liquid production capacity of the reservoir. The gel dispersion particles can achieve self-growth in the low-permeability-tight reservoir fractures, and the fracture fluid channeling control effect is enhanced.
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公开(公告)号：US20230303907A1
公开(公告)日：2023-09-28
申请号：US17705956
申请日：2022-03-28
IPC分类号： C09K8/512 , C09K8/504 , E21B33/138 , E21B21/00
CPC分类号： C09K8/512 , C09K8/5045 , E21B33/138 , E21B21/003
摘要： A system and method for treating lost circulation, including providing a treatment fluid including a polymer and a nitrogen-generating compound through a wellbore into a lost circulation zone in a subterranean formation, generating nitrogen gas in the lost circulation zone by a reaction of the nitrogen-generating compound, generating foam from the nitrogen gas and the treatment fluid in the lost circulation zone to give foamed polymer in the lost circulation zone, and plugging the lost circulation zone with the foamed polymer.
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公开(公告)号：US11753575B2
公开(公告)日：2023-09-12
申请号：US17802545
申请日：2022-06-16
发明人： Gang Xie , Ruolan Wang , Jinjun Huang , Yang Bai
IPC分类号： C09K8/512 , C08F220/06 , C08F220/56 , C08K9/06 , C09K8/34
CPC分类号： C09K8/512 , C08F220/06 , C08F220/56 , C08K9/06 , C09K8/34 , C08F2800/20 , C08F2810/20 , C09K2208/10
摘要： The invention discloses an organic-inorganic nanocomposite gel sealing agent and oil-based drilling fluid. The sealing agent used for the oil-based drilling fluid is organic-inorganic nanocomposite gel, and the synthetic raw materials of the organic-inorganic nanocomposite gel includes molybdenum disulfide, 2-ethyl acrylic acid, N, N-dimethylacrylamide and N,N-methylene bisacrylamide; the drilling fluid includes the organic-inorganic nanocomposite gel provided by the invention. The organic-inorganic nanocomposite gel is used as a nano sealing agent, the particle size distribution of the organic-inorganic nanocomposite gel is 50-200 nm, the organic-inorganic nanocomposite gel can effectively prevent drilling fluid filtrate from intruding into stratums and prevent accidents such as borehole wall collapse, the organic-inorganic nanocomposite gel is particularly suitable for nano-sealing of shale stratums, and the preparation method of the organic-inorganic nanocomposite gel is reliable in principle and has a wide market prospect.
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公开(公告)号：US20190078014A1
公开(公告)日：2019-03-14
申请号：US16188786
申请日：2018-11-13
申请人： Quidnet Energy Inc.
CPC分类号： C09K8/58 , B01D61/025 , B01D61/04 , B01D61/06 , B01D2311/04 , B01D2313/243 , B01D2313/246 , B01D2313/36 , C02F1/441 , C02F2103/08 , C02F2201/009 , C09K8/501 , C09K8/5045 , C09K8/512 , E21B33/138 , E21B41/0057 , E21B43/26 , F15B1/04
摘要： Energy may be stored by injecting fluid into a fracture in the earth and producing the fluid back while recovering power and/or desalinating water. The method may be particularly adapted to storage of large amounts of energy such as in grid-scale electric energy systems. The fracture may be formed and treated with resin so as to limit fluid loss and to increase propagation pressure. The fluid may be water containing a dissolved salt or fresh water and a portion or all of the water may be desalinated using pressure in the water when it is produced.
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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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公开(公告)号：US09816354B2
公开(公告)日：2017-11-14
申请号：US15122889
申请日：2014-04-07
发明人： Eli Allen Schnoor , Aaron Gene Russell , Lucas Fontenelle , Jeremy Holtsclaw , Ali Alwattari , Dipti Singh
CPC分类号： E21B37/00 , C09K8/035 , C09K8/512 , C09K8/514 , C09K8/685 , C09K8/887 , C09K8/90 , C09K8/905 , C09K2208/26 , E21B43/26
摘要： A method is provided for improved degradation of metal-crosslinked polymer gels, which are useful in oil and gas treating operations. In this method a polysaccharide having a higher degree of substitution than the polymer in the polymer gel is added to the gel. The polysaccharide removes the crosslinking metal ion from the gel to thus break down the gel and reduce its viscosity.
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公开(公告)号：US20170306209A1
公开(公告)日：2017-10-26
申请号：US15507826
申请日：2014-10-01
发明人： Weibin Zha , Hui Zhou
摘要： Crosslinked polymer additives that may be used as thinners and/or deflocculants in subterranean treatment fluids are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising an aqueous base fluid, a viscosifying agent, and a crosslinked synthetic polymer that comprises a copolymer of at least a first monomer comprising 2-acrylamido-2-methylpropane sulfonic acid or any salt thereof, and a second monomer comprising an N-vinyl amide, and at least one crosslinking agent, wherein the average molecular weight of the crosslinked synthetic polymer is less than about 3,000,000 grams per mole; and introducing the treatment fluid into at least a portion of a well bore penetrating at least a portion of a subterranean formation.
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公开(公告)号：US09732265B2
公开(公告)日：2017-08-15
申请号：US14204506
申请日：2014-03-11
IPC分类号： E21B43/22 , E21B43/26 , C09K8/68 , C09K8/12 , C09K8/035 , C09K8/42 , C09K8/512 , C09K8/52 , C09K8/62 , C09K8/72 , C09K8/80 , C09K8/82 , C09K8/88 , C04B24/16 , C04B28/02 , C09K8/467 , C04B103/00
CPC分类号： C09K8/12 , C04B24/163 , C04B28/02 , C04B2103/0062 , C09K8/035 , C09K8/36 , C09K8/42 , C09K8/467 , C09K8/512 , C09K8/52 , C09K8/588 , C09K8/62 , C09K8/64 , C09K8/68 , C09K8/725 , C09K8/74 , C09K8/76 , C09K8/80 , C09K8/82 , C09K8/882 , C09K8/887 , C09K2208/28 , E21B43/16 , E21B43/26
摘要： Various embodiments disclosed relate to a composition including a crosslinkable ampholyte polymer or a crosslinked product of the same, methods of making and using the composition, and systems including the composition. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a crosslinkable ampholyte polymer. The crosslinkable ampholyte polymer can include an ethylene repeating unit including a —C(O)NH2 group, an ethylene repeating unit including a —S(O)2OR1 group, and an ethylene repeating unit comprising an —N+R23X− group. At each occurrence, R1 can be independently selected from the group consisting of —H and a counterion. At each occurrence, R2 can be independently substituted or unsubstituted (C1-C20)hydrocarbyl. At each occurrence, X− can be independently a counterion. The composition can also include at least one crosslinker. The method can include placing the composition in a subterranean formation.
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公开(公告)号：US20170199296A1
公开(公告)日：2017-07-13
申请号：US15400438
申请日：2017-01-06
申请人： M-I L.L.C.
IPC分类号： G01V3/20 , G01V3/34 , C09K8/035 , C08F220/56 , C09K8/12
CPC分类号： C09K8/52 , C08F212/14 , C08F220/54 , C08F220/56 , C08F228/02 , C09K8/035 , C09K8/12 , C09K8/5083 , C09K8/512 , C09K2208/26 , E21B37/00 , E21B37/08 , E21B43/082 , E21B43/10 , E21B43/25 , G01V3/20 , G01V3/24 , G01V3/34 , C08F2220/585
摘要： A method of electrically logging a section of a wellbore includes circulating a wellbore fluid within the wellbore, the wellbore fluid including a base fluid; and a crosslinked and branched polymeric fluid loss control agent formed from at least an acrylamide monomer and a sulfonated anionic monomer; wherein the fluid loss control agent has an extent of crosslinking that is selected so that the fluid loss control agent has a viscosity that is within a peak viscosity response of the viscosity response curve; placing within the wellbore a wellbore logging tool capable of applying an electrical current to the wellbore; applying electrical current from the logging tool; and collecting an electrical log of the portion of the wellbore that has had electrical current applied thereto.
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