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    FABRICATION OF DOWNHOLE DRILLING TOOLS
    5.
    发明申请
    FABRICATION OF DOWNHOLE DRILLING TOOLS 有权

    公开(公告)号：US20220250989A1

    公开(公告)日：2022-08-11

    申请号：US17170006

    申请日：2021-02-08

    Applicant: Saudi Arabian Oil Company ,  Chengdu Dongwei Technology Co., LTD

    Inventor： Guodong Zhan ,  Jianhui Xu ,  Duanwei He ,  Abrar Alshaikh

    IPC: C04B35/5831 ,  C04B35/645 ,  E21B10/00

    Abstract: A method of forming a composite cutter for a downhole drilling tool is described. The method includes: mixing a polycrystalline diamond powder and a cubic boron nitride powder with a molar ratio between 0.1 and 0.9 to form a catalyst-free composite mixture; placing the catalyst-free composite mixture into a mold configured in a shape of a cutter; exposing the catalyst-free composite mixture to an ultra-high-pressure, high-temperature treatment including a pressure between 11 Gigapascals (GPa) and 20 GPa, and a temperature between 1300 Kelvins (K) and 2600 K to form a solid composite body; and cooling the solid composite body to form the composite cutter.

    Intelligent drilling system with external stationary sensing shield
    8.
    发明授权
    Intelligent drilling system with external stationary sensing shield 有权

    公开(公告)号：US12188342B2

    公开(公告)日：2025-01-07

    申请号：US18064105

    申请日：2022-12-09

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Guodong Zhan ,  Chinthaka P. Gooneratne ,  Abdulwahab Aljohar ,  Jianhui Xu ,  Timothy Eric Moellendick

    IPC: E21B44/06 ,  E21B21/08

    Abstract: An intelligent drilling system is disclosed. The intelligent drilling system includes an inner drill pipe adapted to rotate around a longitudinal axis in a transversal plane of a wellbore to advance a drill bit during a drilling operation, an external drill string shield surrounding the inner drill pipe and coupled to the inner drill pipe via at least one bearing system, the at least one bearing system adapted to decouple the external drill string shield from a rotational motion of the inner drill pipe in the transversal plane such that the external drill string shield remains substantially stationary during the drilling operation, and an in-situ sensing system disposed on an interior wall of the external drill string shield to measure at least one downhole parameter of the wellbore.

    Systems for a dissolvable material based downhole tool
    10.
    发明授权
    Systems for a dissolvable material based downhole tool 有权

    公开(公告)号：US11859449B2

    公开(公告)日：2024-01-02

    申请号：US17643657

    申请日：2021-12-10

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Bodong Li ,  Jianhui Xu ,  Abrar Alshaikh ,  Chinthaka P. Gooneratne ,  Guodong Zhan

    IPC: E21B47/12 ,  E21B34/06

    CPC classification number: E21B47/138 ,  E21B34/063 ,  E21B2200/08

    Abstract: A downhole sub has a body defined by a wall extending in an axial direction from a first end to a second end. An inner surface of the wall defines a flow path through the downhole sub and an outer surface of the wall defines an outer diameter of the downhole sub. A compartment extends from the outer surface into the wall to having a depth less than a thickness of the wall. A housing may be removably fixed in the compartment. One or more mobile devices may be disposed in the housing. Each of the one or more mobile devices includes a sensor encapsulated in a protective material. A control element may block an opening of the housing, the control element is made of a dissolvable material configured to dissolve at a predetermined depth in a wellbore and release the one or more mobile devices into the wellbore.

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