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公开(公告)号：US12077711B2
公开(公告)日：2024-09-03
申请号：US18149915
申请日：2023-01-04
IPC分类号： C09K8/487 , C04B24/26 , C04B28/04 , C04B28/12 , C04B103/00 , C04B103/46 , E21B33/13
CPC分类号： C09K8/487 , C04B24/2623 , C04B28/04 , C04B28/12 , E21B33/13 , C04B2103/0062 , C04B2103/46
摘要： A cement composition can include water; cement, wherein less than 75 w/w % of the total amount of the cement is Portland cement; and a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one branching point formed with a monomer and a cross-linking agent that comprises at least three active functional groups. The cement can also be a non-Portland cement. The monomer can be a vinyl ester-based monomer that is polymerized with the cross-linking agent to form the polymer network. The cement composition can be used in an oil and gas operation.
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公开(公告)号：US12018207B2
公开(公告)日：2024-06-25
申请号：US17892787
申请日：2022-08-22
摘要： A cement slurry including graphene, a cement, and water; the graphene comprises bioderived renewable graphene (BRG). The cement slurry has reduced transient gel formation relative to a same cement slurry absent the graphene. Methods of mitigating transient gels in cement are also provided.
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公开(公告)号：US20240182775A1
公开(公告)日：2024-06-06
申请号：US18443895
申请日：2024-02-16
摘要： A cement slurry including graphene, a cement, and water; the graphene comprises bioderived renewable graphene (BRG). The cement slurry has reduced transient gel formation relative to a same cement slurry absent the graphene. Methods of mitigating transient gels in cement are also provided.
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公开(公告)号：US11898085B2
公开(公告)日：2024-02-13
申请号：US17494030
申请日：2021-10-05
发明人： Vivek S. Goel , Peter James Boul , Xueyu Pang , Lee J. Hall , Jay P. Deville , Samuel J. Lewis , B. Raghava Reddy , Trissa Joseph , Xiangnan Ye
IPC分类号： C09K8/20 , C04B28/02 , C09K8/467 , C04B22/00 , C04B22/10 , C04B24/38 , C04B28/04 , C09K8/14 , C09K8/16 , C09K8/40 , C09K8/487 , C09K8/493 , C09K8/54 , C09K8/80 , C09K8/504 , C04B103/46
CPC分类号： C09K8/206 , C04B22/0093 , C04B22/10 , C04B24/383 , C04B28/02 , C04B28/04 , C09K8/145 , C09K8/16 , C09K8/40 , C09K8/467 , C09K8/487 , C09K8/493 , C09K8/54 , C09K8/80 , C04B2103/46 , C09K8/504 , C09K2208/10 , C09K2208/32 , C09K2208/34 , C04B28/02 , C04B14/10 , C04B20/002 , C04B20/008 , C04B22/0026 , C04B24/383 , C04B38/02 , C04B38/10 , C04B2103/0079 , C04B2103/12 , C04B2103/22 , C04B2103/40 , C04B2103/408 , C04B2103/46 , C04B2103/50 , C04B2103/61
摘要： The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures.
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公开(公告)号：US11840660B2
公开(公告)日：2023-12-12
申请号：US17553100
申请日：2021-12-16
发明人： Abdullah Al-Yami , Mohammed Alawami , Pratyush Singh , Vikrant Wagle , Husain A. Buwaidi , Ahmad A. Omair
IPC分类号： C09K8/487 , C04B28/02 , C04B24/28 , C04B14/30 , E21B33/14 , C04B14/06 , C04B103/46 , C04B103/40 , C04B103/20
CPC分类号： C09K8/487 , C04B14/06 , C04B14/30 , C04B24/281 , C04B28/02 , E21B33/14 , C04B2103/20 , C04B2103/408 , C04B2103/46
摘要： Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries have, among other attributes, an extended thickening time, leading to improved retardation, flowability, and pumpability and may be used, for instance, in the oil and gas drilling industry. The cement slurry includes water, microfine cement material, and bisphenol-F diglycidyl ether resin.
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公开(公告)号：US11708520B2
公开(公告)日：2023-07-25
申请号：US16454909
申请日：2019-06-27
IPC分类号： C09K8/487 , C09K8/592 , C04B7/02 , C04B14/06 , C04B14/10 , C04B103/50 , C04B103/46
CPC分类号： C09K8/487 , C04B7/02 , C04B14/06 , C04B14/10 , C09K8/592 , C04B2103/46 , C04B2103/50 , C09K2208/10 , C09K2208/28
摘要： Cementing compositions containing a hydraulic cement, halloysite nanoparticles, and silica flour. The cementing compositions may optionally include other additives such as a friction reducer, a defoamer, and a fluid loss additive. Cement samples made therefrom and methods of producing such cement samples are also specified. The addition of halloysite nanoparticles and silica flour provides enhanced mechanical strength (e.g. compressive strength, flexural strength) and improved durability (e.g. resistance to CO2 and salinity) to the cement, making them suitable cementing material for oil and gas wells.
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公开(公告)号：US11692122B2
公开(公告)日：2023-07-04
申请号：US17970782
申请日：2022-10-21
发明人： Thomas Jason Pisklak , Sam Jason Lewis , Paul Joseph Jones , Stephanie Ruiz , William Cecil Pearl, Jr.
CPC分类号： C09K8/487 , C04B14/106 , C04B20/1074 , C04B22/062 , C04B28/26 , E21B33/14
摘要： Methods of cementing include providing a geopolymer cement composition that includes a monophase amorphous hydraulic binder material (MAHBM), a metal silicate, an alkaline activator, and a carrier fluid, introducing the geopolymer cement composition into a subterranean formation, and allowing the geopolymer cement composition to set in the subterranean formation. The MAHBM includes silica or alumina core particulates coated with an amorphous calcium silicate hydrate.
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公开(公告)号：US20230183545A1
公开(公告)日：2023-06-15
申请号：US17551946
申请日：2021-12-15
CPC分类号： C09K8/426 , C09K8/487 , C09K2208/10
摘要： This disclosure relates a method of reducing water production in a wellbore, which may include introducing an alkaline nanosilica dispersion to the wellbore such that it contacts a water producing zone of the wellbore, introducing a sodium bicarbonate activator to the wellbore such that it contacts the alkaline nanosilica dispersion in the water producing zone, and forming a gelled solid from the water shutoff material in the water producing zone, thereby reducing water production in the wellbore.
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公开(公告)号：US20230143012A1
公开(公告)日：2023-05-11
申请号：US18149915
申请日：2023-01-04
CPC分类号： C09K8/487 , C04B28/12 , C04B28/04 , E21B33/13 , C04B24/2623 , C04B2103/46
摘要： A cement composition can include water; cement, wherein less than 75 w/w % of the total amount of the cement is Portland cement; and a fluid loss additive, wherein the fluid loss additive comprises a polymer network having at least one branching point formed with a monomer and a cross-linking agent that comprises at least three active functional groups. The cement can also be a non-Portland cement. The monomer can be a vinyl ester-based monomer that is polymerized with the cross-linking agent to form the polymer network. The cement composition can be used in an oil and gas operation.
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10.发明申请公开(公告)号：US20190226288A1
公开(公告)日：2019-07-25
申请号：US16375281
申请日：2019-04-04
发明人： Md AMANULLAH , Turki Thuwaini Mohammed ALSUBAIE , Abdulaziz Salah BUBSHAIT , Omar Abdulwahab AL-FUWAIRES
CPC分类号： E21B21/003 , C04B28/02 , C04B2103/0028 , C09K8/04 , C09K8/487 , C09K8/508 , C04B14/14 , C04B22/062 , C04B2103/44 , C04B2103/46 , C04B2103/50
摘要： A method of conversion of a water-based mud to a gel-based LCM quickly to control lost circulation in a lost circulation zone in a wellbore during continuous drilling with a drilling mud, the drilling mud comprises a volcanic ash, water, a de-foamer, a pH buffer, and a polymer. The method comprises the steps of entering the lost circulation zone, determining a lost circulation volumetric flow rate, metering a first amount of a binder into the drilling mud to create a binder containing mud, pumping the binder containing drilling mud into the wellbore, and suspending metering of the first amount of the binder to the drilling mud after a pre-defined regulating period of time effective to permit the binder containing drilling mud to create a gel-based LCM operable to alter the lost circulation zone.
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