知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

951 条记录 (耗时 0.028 秒)

    Roller Bearing Assembly, and Method of Grounding a Perforating Gun Assembly
    1.
    发明公开
    Roller Bearing Assembly, and Method of Grounding a Perforating Gun Assembly 审中-公开

    公开(公告)号：US20240352834A1

    公开(公告)日：2024-10-24

    申请号：US18586504

    申请日：2024-02-25

    申请人： XConnect, LLC

    发明人： Shelby L. Sullivan ,  Joshua M. Scott

    IPC分类号： E21B43/119 ,  F16C19/36 ,  F16C41/00

    CPC分类号： E21B43/119 ,  F16C19/361 ,  F16C41/002 ,  F16C2352/00

    摘要： A bearing member assembly used in a wellbore completion operation. The bearing member assembly first comprises a tubular sub. The tubular sub has a first end, a second end opposite the first end, and connection threads residing at each of the first and second ends. The bearing member assembly also comprises an internal bore, and a tapered shoulder residing along the internal bore proximate the second end. The tapered shoulder defines an angle relative to the central axis of the internal bore. The bearing member assembly also comprises a bearing member. The bearing member has a tubular support body wherein an inner diameter forms a bore and an outer diameter serves as a race. A plurality of roller bearings are disposed along the race, engaging the tapered shoulder to serve as a grounding path. A cage secures the roller bearings against the race. A method of grounding a perforating gun assembly is also provided herein.

    ACTIVE ENERGY-ABSORBING SHOCK ABSORBER FOR PERFORATION COMBINED WELL TESTING
    3.
    发明公开
    ACTIVE ENERGY-ABSORBING SHOCK ABSORBER FOR PERFORATION COMBINED WELL TESTING 审中-公开

    公开(公告)号：US20240328288A1

    公开(公告)日：2024-10-03

    申请号：US18744271

    申请日：2024-06-14

    申请人： Southwest Petroleum University

    发明人： Liangliang DING ,  Kai WANG ,  Jialin TIAN ,  Hongtao LIU ,  Yongzhi XUE ,  Ruifeng GUO ,  Hongtao JING ,  Qiang ZHANG

    IPC分类号： E21B43/119 ,  E21B43/116

    CPC分类号： E21B43/1195 ,  E21B43/116

    摘要： An active energy-absorbing shock absorber for perforation combined well testing includes a first energy-absorbing mechanism, a second energy-absorbing mechanism and an axial-force cushioning mechanism. The first energy-absorbing mechanism includes a gun body, a gun head, a gun tail joint, a support frame, an energy-absorbing filling layer and a detonation mechanism. The second energy-absorbing mechanism includes an intermediate connecting cylinder, an outer cylinder, a limiting step, a movable impact head, a support base, a hydraulic buffer mechanism, a piston rod, an energy-absorbing spring and an inner cavity piston. The axial-force cushioning mechanism includes a housing, a guide mechanism, a buffer shaft and a multi-stage buffer spring. The absorber with a multi-layer structure is filled with a foam aluminum material.

    DOWNHOLE PERFORATION TOOL
    6.
    发明公开
    DOWNHOLE PERFORATION TOOL 审中-公开

    公开(公告)号：US20240301772A1

    公开(公告)日：2024-09-12

    申请号：US18180616

    申请日：2023-03-08

    申请人： Saudi Arabian Oil Company

    发明人： Ali Al-Mashhad ,  Mohammed Al-Dabbous ,  Ali Al-Safwani ,  Rakan Al-Yateem

    IPC分类号： E21B43/119 ,  E21B47/12

    CPC分类号： E21B43/119 ,  E21B43/116 ,  E21B47/12 ,  E21B43/1193

    摘要： A downhole perforation drone includes a body comprising a material configured to dissolve over time. The body includes a first portion and a second portion. The first portion includes one or more sensors to determine a depth and position of the drone within a wellbore, a communications system configured to exchange wireless signals with a surface device, a perforation charge circuit to cause perforation charges to ignite, and a microcontroller to perform operations, including causing the perforation charge circuit to ignite the perforation charges. The second portion includes a plurality of perforation charges, the plurality of perforation charges to ignite upon receiving an instruction from the perforation charge circuit. The microcontroller can determine the position of the drone within the wellbore from sensor information and automatically instruct the perforation charges to ignite based on the position of the downhole perforation drone within the wellbore.

    Service tool string with perforating gun assembly positioning tool
    10.
    发明授权
    Service tool string with perforating gun assembly positioning tool 有权

    公开(公告)号：US12060779B2

    公开(公告)日：2024-08-13

    申请号：US17683639

    申请日：2022-03-01

    申请人： Halliburton Energy Services, Inc.

    发明人： Eric M. Conzemius

    IPC分类号： E21B43/119 ,  E21B23/04

    CPC分类号： E21B43/119 ,  E21B23/042

    摘要： A downhole tool position adjustment assembly for locating a tool downhole comprising a mandrel coupled to a housing via an extend-retract mechanism. A controller communicatively connected to the extend-retract mechanism, wherein an application executing within the controller, is configured to control the extend-retract mechanism. A communication system, communicatively coupled to the controller, is configured to receive a command signal from an operator at a surface location. The extend-retract mechanism moves the mandrel relative to the housing in response to a control signal received from the controller in response to the command signal received by the communication system.