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    Maintaining and inspecting a wellbore
    6.
    发明授权
    Maintaining and inspecting a wellbore 有权

    公开(公告)号：US12054999B2

    公开(公告)日：2024-08-06

    申请号：US17188870

    申请日：2021-03-01

    申请人： Saudi Arabian Oil Company

    发明人： Ahmed Al-Mousa

    IPC分类号： E21B17/10 ,  E21B23/04 ,  E21B37/02 ,  E21B41/00 ,  E21B47/08 ,  G05D1/00

    CPC分类号： E21B17/1057 ,  E21B23/0419 ,  E21B37/02 ,  E21B41/0085 ,  E21B47/08 ,  G05D1/04

    摘要： An assembly and a method for maintaining and inspecting a wellbore are described. The assembly includes a body. Multiple magnetic wheel sub-assemblies are adjustably coupled to the body. The magnetic wheel sub-assemblies position the body within the wellbore and reposition relative to the body in response to a wellbore narrowing or a wellbore widening. The assembly includes a tool connection coupled to the body. The tool connection couples a well tool to the body. The assembly includes a control sub-assembly to control the magnetic wheel sub-assemblies and operate the well tool within the wellbore. The assembly includes a power sub-assembly to supply power to the control sub-assembly and the well tool. The assembly includes a backup retrieval mechanism coupled to the body. The backup retrieval mechanism couples to a retrieval tool.

    Method and system for power generation and use
    8.
    发明授权
    Method and system for power generation and use 有权

    公开(公告)号：US12044101B2

    公开(公告)日：2024-07-23

    申请号：US18046781

    申请日：2022-10-14

    申请人： SAUDI ARABIAN OIL COMPANY

    发明人： Jinjiang Xiao ,  Songlin Zhong ,  Chidirim Enoch Ejim

    IPC分类号： E21B41/00 ,  E21B34/06 ,  E21B43/12

    CPC分类号： E21B34/066 ,  E21B41/0085 ,  E21B43/128

    摘要： A system includes an electric submersible pump (ESP) assembly configured to transport a fluid in a casing string of a well to a surface location. The ESP includes a pump configured to receive, upon activation, the fluid through a pump intake and vent the fluid through a pump discharge; an output shaft extending downhole from and fixed to the pump; and a control valve assembly. The control valve assembly includes a movable core of an electromagnet movable along a central axis of the system; a generator in electrical communication with the electromagnet, configured to generate electrical power to pull the movable core in an uphole direction upon activation of the pump of the electric submersible pump assembly; a shaft coupler coupling a generator input shaft and the output shaft; and a stinger having a conduit for the fluid to flow from the tubing string to the pump intake. The stinger includes at least one intake slot configured to receive the fluid; and an exit configured to vent the fluid to the pump intake of the electric submersible pump assembly. The control valve assembly also includes a flow tube connected to the movable core, the flow tube comprising an exterior surface creating fluid communication between the flow tube and the stinger before, when, or after the exterior surface uncovers the at least one intake slot of the stinger. The ESP also includes a spring configured to slide the movable core upon deactivation of the pump of the electric submersible pump assembly.

    Downhole wellbore systems for generating electricity
    10.
    发明授权
    Downhole wellbore systems for generating electricity 有权

    公开(公告)号：US11976537B2

    公开(公告)日：2024-05-07

    申请号：US17685256

    申请日：2022-03-02

    申请人： Luis Seczon

    发明人： Luis Seczon

    IPC分类号： E21B41/00 ,  E21B33/12

    CPC分类号： E21B41/0085 ,  E21B33/12

    摘要： Disclosed herein are downhole generator assemblies and methods for generating electricity that may each include a downhole generator assembly which may include: an upper perforation capable of receiving reservoir fluid therethrough; and a lower perforation capable of receiving reservoir fluid therethrough; an annular barrier disposed in the interior of the first conduit below the upper perforation and above the lower perforation and capable of inhibiting reservoir fluid from flowing past the annular barrier; a second conduit in the wellbore, the second conduit having an interior and an upper port; a housing coupled to the second conduit, the housing having an interior and an lower port; an impeller disposed in the housing, wherein the impeller may be capable of being rotated by moving fluid flowing in the interior of the housing; and a generator disposed outside the housing, the generator comprising a rotor coupled to the impeller.