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    PROCESS FOR PREPARING NON-CEMENTITIOUS LOSS CONTROL COMPOSITION
    1.
    发明公开
    PROCESS FOR PREPARING NON-CEMENTITIOUS LOSS CONTROL COMPOSITION 审中-公开

    公开(公告)号：US20240352304A1

    公开(公告)日：2024-10-24

    申请号：US18687898

    申请日：2022-01-27

    申请人： OIL AND NATURAL GAS CORPORATION LIMITED

    发明人： Kishori Lal ,  Abhinav Hazra ,  Deepak Painuly ,  Parvinder Singh

    IPC分类号： C09K8/504 ,  C04B40/00 ,  C04B111/00

    CPC分类号： C09K8/5045 ,  C04B40/0046 ,  C04B2111/0012 ,  C09K2208/18

    摘要： A non-cementitious loss control composition and a method for preparing a non-cementitious loss control composition is provided. The method comprises adding bentonite to water to form a gel slurry and adding a cross linking agent to the gel slurry. The method further comprises adding a binding agent to the gel slurry and the cross linking agent and adding a strengthening agent to the binding agent, the gel slurry and the cross-linking agent. Further, the method comprises adding a bridging agent to the strengthening agent, the binding agent, the gel slurry and the cross linking agent. The method further comprises adding a retarder to the bridging agent, the strengthening agent, the binding agent, the gel slurry and the cross linking agent, where the loss control composition is a lightweight thixotropic composition that is prepared in a density range of 10 Pounds Per Gallon (ppg) to 16 ppg.

    Curing Lost Circulation Of Water-Based Drilling Muds
    4.
    发明公开
    Curing Lost Circulation Of Water-Based Drilling Muds 审中-公开

    公开(公告)号：US20240247179A1

    公开(公告)日：2024-07-25

    申请号：US18101475

    申请日：2023-01-25

    申请人： Halliburton Energy Services, Inc.

    发明人： Waseem Abdulrazzaq ,  Jay Deville ,  Carlos Arturo Carrera

    IPC分类号： C09K8/504 ,  C04B28/10 ,  C09K8/16 ,  E21B21/00 ,  E21B21/06 ,  E21B21/08

    CPC分类号： C09K8/5045 ,  C04B28/105 ,  C09K8/16 ,  E21B21/003 ,  E21B21/062 ,  E21B21/08 ,  C04B2103/20

    摘要： A method may include: circulating a water-based drilling fluid though a drill string to extend a wellbore through a subterranean formation; separating at least a portion of the water-based drilling fluid from the circulated water-based drilling fluid to form a separated portion of water-based drilling fluid; mixing a metal salt and a metal oxide into the separated portion of water-based drilling fluid to form a chemical sealing pill; introducing the chemical sealing pill into the drill string and flowing the chemical sealing pill into a lost circulation zone in the subterranean formation; allowing at least a portion of the chemical sealing pill to set in the lost circulation zone to form a set plug, wherein the set plug seals the lost circulation zone and reduces loss of fluid into the lost circulation zone from subsequently introduced fluids; and preventing loss of fluid into the lost circulation zone from subsequently introduced fluids with the set plug.

    COMPOSITE DIVERSION PARTICLE AGGLOMERATION
    5.
    发明公开
    COMPOSITE DIVERSION PARTICLE AGGLOMERATION 审中-公开

    公开(公告)号：US20240110090A1

    公开(公告)日：2024-04-04

    申请号：US18380418

    申请日：2023-10-16

    申请人： CARBO CERAMICS INC.

    发明人： Thu LIENG ,  Todd ROPER ,  Olatunji OREKHA

    IPC分类号： C09K8/516 ,  C09K8/504 ,  C09K8/508 ,  C09K8/80 ,  C09K8/84 ,  C09K8/88 ,  C09K8/92 ,  E21B43/26

    CPC分类号： C09K8/516 ,  C09K8/5045 ,  C09K8/5083 ,  C09K8/805 ,  C09K8/845 ,  C09K8/882 ,  C09K8/92 ,  E21B43/26 ,  E21B43/267

    摘要： The present disclosure relates to material for use in oil and gas well completion activities. More particularly, the present disclosure relates to diversion particles, along with methods for making and using the diversion particles. In an embodiment, a composite diversion material includes a non-degradable component comprising two or more non-degradable particulates, wherein the non-degradable particulates have a long term permeability at 7,500 psi of at least about 20 D. The composite diversion material includes a degradable component surrounding at least a portion of the non-degradable component. In another embodiment, a method of making a composite diversion material includes mixing non-degradable proppant particles with an aqueous solution containing a first degradable material to provide a mixture having a proppant concentration of at least about 20 volume percent. The method includes drying the mixture at a temperature of from about 25° C. to about 200° C. to provide the composite diversion material.

    Thermoplastic elastomer for profile control and water shutoff and method for preparing same
    8.
    发明授权
    Thermoplastic elastomer for profile control and water shutoff and method for preparing same 有权

    公开(公告)号：US11814573B2

    公开(公告)日：2023-11-14

    申请号：US17382348

    申请日：2021-07-22

    申请人： Southwest Petroleum University

    发明人： Yan Xue ,  Chunquan Zhang ,  Dan Huang ,  Liang Li ,  Bing Wei

    IPC分类号： C09K8/508 ,  C09K8/504 ,  C08F8/28

    CPC分类号： C09K8/5083 ,  C08F8/28 ,  C09K8/5045

    摘要： A thermoplastic elastomer for profile control and water shutoff is prepared from the following raw materials in parts by weight: 8-10 parts of a component A, 1-3 parts of a strong acid, 1-3 parts of a hydrophobic modifier and 100-105 parts of water. The component A is one of polyethylene glycol, polyvinylether, polyvinyl alcohol, copolymer of acrylamide and acrylonitrile. The strong acid is one of concentrated hydrochloric acid and concentrated sulfuric acid. The hydrophobic modifier is any one of formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, β-propiolactone, γ-butyrolactone, δ-valerolactone, methyltriacetylsilane, methyltrimethylsilane, butyl acrylate and ethylene glycol dimethacrylate. The thermoplastic elastomer for profile control and water shutoff provided by the disclosure has the advantages of one-step preparation and molding, strong deformation capability, temperature resistance, salt tolerance, strong stability and the like, and is suitable for large-scale production and application.