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公开(公告)号：US12122956B1
公开(公告)日：2024-10-22
申请号：US18192327
申请日：2023-03-29
摘要： In a method for diverter fracturing, a water-based fracturing fluid including non-convex particles is introduced into a hydraulic fracture of a wellbore at a first location. Each non-convex particle is formed to interlock with another non-convex particle. A diverter plug is formed in the hydraulic fracture when multiple non-convex particles interlock. Flow of another water-based fracturing fluid is diverted to a second location due to the diverter plug, forming another hydraulic fracture at the second location.
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2.发明公开公开(公告)号：US20240317929A1
公开(公告)日：2024-09-26
申请号：US18578140
申请日：2022-07-06
发明人： Ana-Maria MARTIN-LASANTA , Ursula Peschke , Alexander Bornschlegl , Georg Nickerl , Beate Gnass
CPC分类号： C08G59/38 , C08G59/223 , C08G59/226 , C08G59/5006 , C09J163/10 , C09K8/44 , E04B1/4157
摘要： Epoxy resin mixtures include at least one curable epoxy resin and at least one epoxide-acrylate hybrid molecule that bears at least one epoxy group and at least one acrylate group. A method is developed for chemical anchoring with the epoxy resin mixture in the resin component of a multi-component reactive resin composition. Furthermore, the multi-component reactive resin composition includes the epoxy resin mixture. A second method is developed for chemical anchoring with the multi-component reactive resin composition.
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公开(公告)号：US20240287376A1
公开(公告)日：2024-08-29
申请号：US18658069
申请日：2024-05-08
发明人： Wenwen Li , Fakuen Frank Chang , Feng Liang
IPC分类号： C09K8/44 , B01J20/18 , B01J20/22 , E21B33/138
CPC分类号： C09K8/44 , B01J20/18 , B01J20/22 , E21B33/138
摘要： A treatment fluid and method for water shut-off applications containing an amine-functionalized solid support, an epoxy resin, a second curing agent, and a carrier fluid. Prior to use of the treatment fluid, the amine-functionalized solid support has reacted with carbon dioxide to produce a carbamate-functionalized solid support. The treatment fluid is introduced into a geological formation with high-permeability pathways, curing the epoxy resin, and sealing these pathways.
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公开(公告)号：US20240191594A1
公开(公告)日：2024-06-13
申请号：US18531656
申请日：2023-12-06
申请人： Chevron U.S.A. Inc.
摘要： A method of deploying an expandable composition in a cement top job in a well system includes identifying evidence of actual or potential gas migration within an annulus cement of the well system. Once the evidence of gas migration is identified, a first component and a second component are mixed in a mixer to form the expandable composition and the expandable composition is pumped from the mixer through a conduit to a top of cement of the annulus cement. The expandable composition expands to form an expanded composition that seals the annulus above the top of cement of the annulus cement. Cement can be added onto the expanded composition.
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5.发明公开公开(公告)号：US20240174569A1
公开(公告)日：2024-05-30
申请号：US18550444
申请日：2022-03-04
CPC分类号： C04B26/16 , C04B14/047 , C09K8/44
摘要： The present invention relates to a multi-component resin system for producing a mortar composition based on isocyanate amine adducts for the chemical fastening of construction elements. The invention also includes a mortar composition based on isocyanate amine adducts produced from the multi-component resin system. The present invention also relates to a method for the chemical fastening of construction elements in mineral substrates and to the use of a mortar composition based on the isocyanate amine adducts for the chemical fastening of construction elements in mineral substrates.
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公开(公告)号：US11965129B1
公开(公告)日：2024-04-23
申请号：US18059358
申请日：2022-11-28
IPC分类号： C09K8/42 , C09K8/44 , E21B33/124
CPC分类号： C09K8/426 , C09K8/44 , E21B33/124
摘要： A method includes conveying a straddle packer assembly into a wellbore that provides a water production zone and first and second oil production zones, the water production zone interposing the first and second oil production zones, deploying the straddle packer assembly and thereby isolating the water production zone from the first and second oil production zones, injecting an injection fluid into the water production zone from the straddle packer assembly, and preventing the influx of water from the water production zone into the wellbore with the injection fluid.
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公开(公告)号：US11884877B2
公开(公告)日：2024-01-30
申请号：US17973352
申请日：2022-10-25
发明人： Fernando Antonio Moreira Da Silva , Mario Germino Ferreira Da Silva , Patricia Braga Gusmao , Valtair Marcos Cristante
摘要： The present invention refers to a method for removing fouling in carbonate reservoirs and/or depleted reservoirs by adding carbon dioxide to industrial or desulphated water to produce carbonic acid, in producing well stimulation operations, to be used as a weak acid for removing fouling in remote operation aiming at keeping the productivity of producing wells and lessening the need for remote operations with stimulation vessel, and therefore reducing operating costs.
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公开(公告)号：US11673993B2
公开(公告)日：2023-06-13
申请号：US17276968
申请日：2019-09-09
IPC分类号： C08G59/02 , C08G59/24 , C08G59/50 , C08G59/56 , C08K3/16 , C08K3/28 , C08K5/42 , C09K8/44 , C09J163/00 , C08G59/68
CPC分类号： C08G59/022 , C08G59/245 , C08G59/5006 , C08G59/5026 , C08G59/5033 , C08G59/56 , C08K3/16 , C08K3/28 , C08K5/42 , C09K8/44 , C08K2003/287
摘要： A method includes using at least one salt (S) selected from the salts of nitric acid, salts of nitrous acid, salts of halogens or salts of trifluoromethanesulfonic acid as an accelerator in a multi-component epoxy resin compound for the chemical fastening of construction elements and/or anchoring means. Another method includes the chemical fastening of construction elements and anchoring elements, such as anchor rods, anchor bolts, rods, sleeves, reinforcing bars, screws and the like in boreholes in various substrates.
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公开(公告)号：US20230127921A1
公开(公告)日：2023-04-27
申请号：US17973352
申请日：2022-10-25
发明人： Fernando Antonio Moreira Da Silva , Mario Germino Ferreira Da Silva , Patricia Braga Gusmao , Valtair Marcos Cristante
摘要： The present invention refers to a method for removing fouling in carbonate reservoirs and/or depleted reservoirs by adding carbon dioxide to industrial or desulphated water to produce carbonic acid, in producing well stimulation operations, to be used as a weak acid for removing fouling in remote operation aiming at keeping the productivity of producing wells and lessening the need for remote operations with stimulation vessel, and therefore reducing operating costs.
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公开(公告)号：US20220333001A1
公开(公告)日：2022-10-20
申请号：US17469669
申请日：2021-09-08
申请人： YANGTZE UNIVERSITY
发明人： Huan Yang , Zhuyang Jiang , Xiaorong Yu , Gaoshen Su , Kailu Wang , Beibei Zhang , Yang Li , Chang Xiao
摘要： A pH-sensitive temporary plugging agent and its preparation method, and the use thereof in exploitation of a low-permeability oil reservoir are disclosed. The temporary plugging agent is prepared by raw materials including, in percentages by mass, 3-8% of carboxymethyl chitosan, 0.2-0.7% of gelatin, 0.1-0.6% of an initiator, 5-15% of a toughener, and a balance of water, wherein the initiator is a solution of AgNO3 in ammonia water having a concentration of 0.1-0.3 mol/L, and the toughener is a carboxyl-terminated hyperbranched polyester.
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