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公开(公告)号：US11993750B2
公开(公告)日：2024-05-28
申请号：US18330033
申请日：2023-06-06
IPC分类号： C09K8/92 , C09D133/26 , C09K8/03 , C09K8/32 , B82Y40/00
CPC分类号： C09K8/92 , C09D133/26 , C09K8/032 , B82Y40/00 , C09K2208/10
摘要： Polyacrylamide (PAM)-coated nanosand that may be a relative permeability modifier (RPM) and that is applied to treat a wellbore in a subterranean formation. The treatment may be for excess water production. The PAM-coated nanosand is PAM-hydrogel-coated nanosand. The PAM-coated nanosand os nanosand coated with PAM hydrogel. The PAM hydrogel includes crosslinked PAM in water. Application of the PAM-coated nanosand may reduce water production from the subterranean formation into the wellbore. The PAM hydrogel of the PAM-coated nanosand may expand in a water zone of the subterranean formation to restrict water flow into the wellbore. The PAM hydrogel of the PAM-coated nanosand may contract in an oil zone of the subterranean formation so not to significantly restrict crude oil flow into the wellbore.
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公开(公告)号：US20240093083A1
公开(公告)日：2024-03-21
申请号：US18521781
申请日：2023-11-28
发明人： Fakuen Frank Chang , Wenwen Li
摘要： Well treatment fluids may include solid particles comprising one or more components selected from the group consisting of urea, ammonium nitrate, ammonium chloride, barium hydroxide, and ammonium thiocyanate. These well treatment fluids may also include a carrier fluid, which may be an aqueous polymeric fluid, an oil, or combinations thereof. The aqueous polymeric fluid may include a polymer selected from the group consisting of guar gum, hydroxypropyl guar, carboxymethyl hydroxypropyl guar, cellulose, or polyacrylamide. The oil may include a material selected from the group consisting of diesel, mineral oil, and wax. Methods for reducing an acid carbonate reaction in a carbonate formation may include pumping a composition of solid particles into a formation; releasing the solid particles from the capsules or emulsion within the formation; and injecting an acid following the releasing step or during pumping, wherein the acid carbonate reaction is carried out at a reduced reaction rate.
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公开(公告)号：US20230365855A1
公开(公告)日：2023-11-16
申请号：US18226186
申请日：2023-07-25
申请人： Core Laboratories LP
发明人： Feng Li , Joshua Charles Falkner
摘要： A tracer particle includes a silica core and a plurality of polymer-coated oligonucleotides disposed within the silica core, on a surface of the silica core, or a combination thereof. Each of the polymer-coated oligonucleotides include a polymer that at least partially surrounds an oligonucleotide.
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4.发明授权公开(公告)号：US11629285B2
公开(公告)日：2023-04-18
申请号：US17680528
申请日：2022-02-25
发明人： Shawn Lu , Kevin Wilbur Smith
IPC分类号： C09K8/80 , C09K8/60 , C09K8/92 , E21B43/267
摘要： Forming a hydrogel in-situ downhole by pumping multiple polymers together that synergistically work together to reduce the flow of water through a proppant pack
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公开(公告)号：US20230072927A1
公开(公告)日：2023-03-09
申请号：US18045999
申请日：2022-10-12
摘要： A wellbore fluid comprising an aqueous base fluid and a plurality of nanoparticles suspended in the aqueous base fluid. The nanoparticles are present in the wellbore fluid in an amount effective to have an effect of increasing the density by at least 0.2 lb/gal.
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公开(公告)号：US20230060690A1
公开(公告)日：2023-03-02
申请号：US18046370
申请日：2022-10-13
IPC分类号： C09K8/92 , C09D133/26 , C09K8/03
摘要： Polyacrylamide (PAM)-coated nanosand that may be a relative permeability modifier (RPM) and that is applied to treat a wellbore in a subterranean formation. The treatment may be for excess water production. The PAM-coated nanosand is PAM-hydrogel-coated nanosand. The PAM-coated nanosand os nanosand coated with PAM hydrogel. The PAM hydrogel includes crosslinked PAM in water. Application of the PAM-coated nanosand may reduce water production from the subterranean formation into the wellbore. The PAM hydrogel of the PAM-coated nanosand may expand in a water zone of the subterranean formation to restrict water flow into the wellbore. The PAM hydrogel of the PAM-coated nanosand may contract in an oil zone of the subterranean formation so not to significantly restrict crude oil flow into the wellbore.
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公开(公告)号：US11486241B2
公开(公告)日：2022-11-01
申请号：US15919793
申请日：2018-03-13
发明人： Scott G. Nelson , Harold Dean Brannon , Jimie Devon Lemons , Thomas Ray Starks, II , D. V. Satyanarayana Gupta
IPC分类号： E21B43/267 , E21B43/14 , E21B33/138 , C09K8/516 , C09K8/508 , C09K8/536 , E21B43/26 , C09K8/68 , C09K8/72 , C09K8/76 , C09K8/88 , C09K8/70 , C09K8/92
摘要： The flow of well treatment fluids may be diverted from a high permeability zone to a low permeability zone within a fracture network within a subterranean formation by use of a mixture comprising a dissolvable diverter and a proppant. At least a portion of the high permeability zone is propped open with the proppant of the mixture and at least a portion of the high permeability zone is blocked with the diverter. A fluid is then pumped into the subterranean formation and into a lower permeability zone of the formation farther from the wellbore. The diverter in the high permeability zones may then be dissolved at in-situ reservoir conditions and hydrocarbons produced from the high permeability propped zones of the fracture network. The mixture has particular applicability in the enhancement of production or hydrocarbons from high permeability zones in a fracture network located near the wellbore.
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公开(公告)号：US20220306931A1
公开(公告)日：2022-09-29
申请号：US17213440
申请日：2021-03-26
发明人： Abdulaziz S. Al-Qasim , Yuguo Wang
摘要： A dispersion of capsules in critical or supercritical carbon dioxide is provided. The capsules include an aqueous solution encapsulated by covalent organic framework particles. Also provided is a method of making a dispersion of aqueous solution capsules. The method includes providing a medium of critical or supercritical carbon dioxide, introducing the aqueous solution into the critical or supercritical carbon dioxide medium, and introducing a covalent organic framework particle into the critical or supercritical carbon dioxide medium. Associated methods of using the disclosed dispersions in hydrocarbon-bearing formations are also provided.
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公开(公告)号：US20220259944A1
公开(公告)日：2022-08-18
申请号：US17586923
申请日：2022-01-28
发明人： Shawn Lu
摘要： Systems and methods for controlling geysering in mining operations.
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公开(公告)号：US11371334B2
公开(公告)日：2022-06-28
申请号：US16527416
申请日：2019-07-31
IPC分类号： E21B7/06 , E21B44/00 , C09K8/52 , C09K8/54 , C09K8/60 , C09K8/66 , C09K8/68 , C09K8/70 , C09K8/72 , C09K8/74 , C09K8/80 , C09K8/84 , C09K8/92 , E21B37/06 , E21B43/267 , E21B21/10 , E21B47/024 , E21B34/06 , E21B47/18
摘要： A directional drilling system includes a rotary steerable tool. The rotary steerable tool includes an extendable member configured to extend outwardly from the rotary steerable tool upon actuation, and a geolocation electronics device configured to track a position of the rotary steerable tool and the extendable member and control actuation of the extendable member. The geolocation electronics device and extendable member are configured to rotate with the rotary steerable tool.
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