-
公开(公告)号：US12037870B1
公开(公告)日：2024-07-16
申请号：US18167550
申请日：2023-02-10
CPC分类号： E21B33/138 , C09K8/426 , C09K8/487 , E21B33/1208 , E21B36/003 , E21B36/04 , E21B33/12
摘要： A eutectic metal alloy is placed through a coiled tubing into a wellbore formed in a subterranean formation. The eutectic metal alloy includes a mixture of multiple metals. The eutectic metal alloy has a melting temperature that is less than a melting temperature of each individual metal of the multiple metals making up the eutectic metal alloy. The eutectic metal alloy is heated to a temperature equal to or greater than the melting temperature of the eutectic metal alloy to liquefy the eutectic metal alloy. The liquefied eutectic metal alloy is flowed from the wellbore and into the subterranean formation, thereby exposing the liquefied eutectic metal alloy to a specified downhole temperature within the subterranean formation and causing the liquefied eutectic metal alloy to solidify to form a seal. The seal prevents fluid from flowing from the wellbore and into the subterranean formation.
-
公开(公告)号：US11814572B2
公开(公告)日：2023-11-14
申请号：US17669971
申请日：2022-02-11
申请人： Angela Anh Doan , Antonio Bottiglieri , Daniel J. Daulton , Cresencio Perez , Shanshan Huang , David James Hoolas , Emmanuel Therond , Paulo Jorge da Cunha Gomes
发明人： Angela Anh Doan , Antonio Bottiglieri , Daniel J. Daulton , Cresencio Perez , Shanshan Huang , David James Hoolas , Emmanuel Therond , Paulo Jorge da Cunha Gomes
IPC分类号： C09K8/467 , C09K8/487 , E21B33/138 , E21B33/14 , E21B33/13
CPC分类号： C09K8/487 , C09K8/467 , E21B33/13 , E21B33/138 , E21B33/14
摘要： A method of cementing a wellbore includes injecting into the wellbore a non-aqueous fluid; injecting into the wellbore a cement slurry and a non-ionic surfactant composition after injecting the non-aqueous fluid; and allowing the cement slurry to set, wherein the non-ionic surfactant composition comprises an alkyl end-capped ethoxylated fatty alcohol, a chain extended non-ionic surfactant, or a combination comprising at least one of the foregoing.
-
公开(公告)号：US11807806B2
公开(公告)日：2023-11-07
申请号：US17545773
申请日：2021-12-08
IPC分类号： E21B43/12 , C09K8/487 , C04B18/162 , C09K8/03 , C04B28/02
CPC分类号： C09K8/487 , C04B18/162 , C04B28/021 , C09K8/03 , E21B43/13 , C09K2208/08
摘要： Provided are methods, compositions, and systems embodying cement compositions and the synergistic effect of lost circulation materials (LCMs) and fluid loss control additives (FLCAs) thereupon for cementing subterranean zones. A method of subterranean well cementing, comprising providing a cement composition comprising a hydraulic cement, a first FLCA, a LCM, and water, wherein the first FLCA comprises a water-soluble polymer with repeating units comprising a 5- to 6-membered cyclic amide; introducing the cement composition into a wellbore penetrating a subterranean formation, wherein inclusion of the first FLCA and the LCM in the cement composition fluid reduces fluid loss into the subterranean formation, wherein the subterranean formation has fractures with a width of from about 1 micron to about 800 microns, and wherein the subterranean formation has a permeability of about 1 millidarcy to about 300 Darcy; and allowing the cement composition to set in the subterranean formation.
-
公开(公告)号：US11753573B2
公开(公告)日：2023-09-12
申请号：US16904349
申请日：2020-06-17
发明人： Dale E. Jamison , Cato Russell McDaniel , Xiangnan Ye , Sharath Savari , Chesnee Lae Davis , Jonathan Paul Walker
CPC分类号： C09K8/487 , C09K8/032 , C09K8/5045 , C09K8/665
摘要： Methods including precipitated and mined calcium carbonate lost circulation materials for use in subterranean formation operations. The precipitated calcium carbonate lost circulation materials are formed under a chosen set of precipitation conditions, including in situ in a subterranean formation. The mined calcium carbonate lost circulation materials are obtained in a desired morphological form under naturally occurring mined conditions. The precipitated and mined calcium carbonate lost circulation materials may be needle-shaped aragonite having an aspect ratio of about 1.4 to about 15.
-
公开(公告)号：US20230212332A1
公开(公告)日：2023-07-06
申请号：US17927581
申请日：2021-07-15
发明人： Akihiro YAMASHITA
CPC分类号： C08F16/06 , C04B24/2623 , C09K8/487 , C04B2103/465
摘要： A PVA excellent in resistance to melting at high temperature is provided. The polyvinyl alcohol-based polymer is a saponificated product of a homopolymer composed of a vinyl ester monomer, a copolymer of a vinyl ester monomer and a monofunctional monomer other than the vinyl ester, a copolymer of a vinyl ester monomer and a polyfunctional monomer, or a copolymer of a vinyl ester monomer, a monofunctional monomer other than vinyl ester, and a polyfunctional monomer has a particle size of 50 nm or more at a cumulative frequency of 50% in particle size distribution by dynamic light scattering measurement of a 0.4 mass % aqueous solution of the polyvinyl alcohol-based polymer at 25° C.
-
公开(公告)号：US20230174844A1
公开(公告)日：2023-06-08
申请号：US17643252
申请日：2021-12-08
发明人： Peter Boul , Kenneth Dejuan Johnson
IPC分类号： C09K8/487 , C04B28/08 , C04B24/00 , C04B24/34 , C04B24/16 , C04B14/30 , C04B24/26 , C09K8/514 , C04B103/50 , C04B103/32 , C04B103/00 , C04B103/46
CPC分类号： C09K8/487 , C04B28/08 , C04B24/003 , C04B24/34 , C04B24/163 , C04B14/30 , C04B24/2647 , C09K8/514 , C04B2103/50 , C04B2103/32 , C04B2103/0035 , C04B2103/46 , C04B2103/0059
摘要： Fluid loss control additives for a cement slurry are provided. An exemplary fluid loss control additive includes a copolymer containing 2-acrylamido-2-methylpropane sulfonic acid monomer units and acryloylmorpholine monomer units, and a graft copolymer. The graft copolymer contains a humate and, grafted onto the humate, a side-chain polymer containing at least one of acrylamide monomer units, acryloylmorpholine monomer units, acrylic acid monomer units, and 2-acrylamido-2-methylpropane sulfonic acid monomer units.
-
公开(公告)号：US11639458B2
公开(公告)日：2023-05-02
申请号：US16674043
申请日：2019-11-05
摘要： In order to substantially reduce friction during drilling operations, specialized lubricants need to be added to drilling fluid recipes. In general, lubricants reduce friction by forming a thin film of liquid that separates the solid surfaces in contact. The primary objective of this research is to evaluate the performance of enhanced activated sludge (EAS) as a lubricant in drilling fluids. EAS is activated sludge rich in lipids. The mixed consortium of microorganism in waste water treatment facilities in grown under a high carbon/nitrogen ratio to trigger lipid accumulation.
Performance of EAS as drilling fluid additive was compared with commercial lubricants in terms of lubricity and flow properties. Lubricants were evaluated using water-based drilling mud at lubricant concentrations of 1.78, 3.11, 4.43, and 6.17 pounds per barrel (ppb). Experiments were carried out in a standard lubricity meter. The lubricity meter tests the ability of the lubricant in the drilling mud to reduce friction. Other parameters measured were plastic viscosity, gel strength, fluid loss, mud cake thickness, sand content, methylene blue test (MBT), alkalinity, and chlorides. These findings show that EAS will improve the properties of water-based drilling mud.-
公开(公告)号：US11485895B2
公开(公告)日：2022-11-01
申请号：US16703408
申请日：2019-12-04
发明人： Ramesh Muthusamy , Remitha Anandoth Koyitti , Abhimanyu Pramod Deshpande , Sohini Bose , Rahul Chandrakant Patil
IPC分类号： E21B33/14 , C09K8/487 , C09K8/467 , C04B28/02 , C04B24/26 , C04B28/04 , C04B103/46 , E21B33/138
摘要： Compositions comprising: (i) a hydraulic cement; and (ii) a polymer comprising at least one monomer having an oxazoline group. Methods of cementing in a well comprising: (A) forming a hydraulic cement composition comprising: (i) a hydraulic cement; (ii) a polymer comprising at least one monomer having an oxazoline group; and (iii) water; (B) introducing the hydraulic cement composition into the well.
-
公开(公告)号：US11472998B2
公开(公告)日：2022-10-18
申请号：US16515673
申请日：2019-07-18
发明人： Abdullah Al-Yami , Vikrant Wagle , Zainab Alsaihati , Tushar Mukherjee , Ali BinAli , Ali Alqahtani
IPC分类号： E21B33/138 , C09K8/487 , C09K8/473 , C09K8/493
摘要： A cement composition is disclosed that includes a cement slurry and an epoxy resin system that includes at least one epoxy resin and a curing agent. The cement slurry has a density in a range of from 65 pcf to 180 pcf and includes a cement precursor material, silica sand, silica flour, a weighting agent, and manganese tetraoxide. The epoxy resin system includes at least one of 2,3-epoxypropyl o-tolyl ether, alkyl glycidyl ethers having from 12 to 14 carbon atoms, bisphenol-A-epichlorohydrin epoxy resin, or a compound having formula (I): (OC2H3)—CH2—O—R1—O—CH2—(C2H3O) where R1 is a linear or branched hydrocarbyl having from 4 to 24 carbon atoms; and a curing agent.
-
10.发明授权公开(公告)号：US11434417B2
公开(公告)日：2022-09-06
申请号：US16885558
申请日：2020-05-28
摘要： A fluid for treating a subterranean formation includes a solvent, a rheology modifier, and a composition that includes a mixture of cellulose fibers and cellulose nanoparticles. The cellulose nanoparticles have a positive zeta potential in a range of about +100 mV to about +10 mV, and a length in a range of from about 50 nm to about 500 nm, and the cellulose fibers have a length from about 50 microns to about 500 microns.
-
-
-
-
-
-
-
-
-
搜索结果
543 条记录 (耗时 0.025 秒)
