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    ACOUSTIC IMPEDANCE MATCHING DEVICES AND RELATED METHODS
    2.
    发明申请
    ACOUSTIC IMPEDANCE MATCHING DEVICES AND RELATED METHODS 审中-公开

    公开(公告)号：WO2023283535A1

    公开(公告)日：2023-01-12

    申请号：PCT/US2022/073373

    申请日：2022-07-01

    Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

    Inventor： SAKTHIVEL, Navin ,  AVAGLIANO, Aaron ,  YOGESWAREN, Elan ,  NEUMANN, Nils ,  SNITKOFF, Joshua ,  ANISIMOV, Mikhail

    IPC: G01V1/40 ,  E21B47/14

    Abstract: Acoustic impedance matching devices and related methods are disclosed. An acoustic impedance matching device includes a first face for facing an acoustic transducer, a second face opposite the first face, and a lattice structure between the first face and the second face. The second is face curved to at least substantially conformally engage an inner surface of a tubing. An effective acoustic impedance of the lattice structure substantially matches a transducer acoustic impedance of the acoustic transducer to a tubing acoustic impedance of the tubing. A material acoustic impedance of a material of the lattice structure is greater than the effective acoustic impedance. A method of manufacturing an acoustic impedance matching device includes providing, to an additive manufacturing apparatus, a digital design defining the lattice structure, providing an additive manufacturing material to a material intake of the additive manufacturing apparatus, and manufacturing the lattice structure using the additive manufacturing material.

    SAND SCREEN
    3.
    发明申请
    SAND SCREEN 审中-公开

    公开(公告)号：WO2022226492A1

    公开(公告)日：2022-10-27

    申请号：PCT/US2022/071796

    申请日：2022-04-19

    Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

    Inventor： FLORES PEREZ, Juan Carlos ,  GLADKIKH, Mikhail ,  AVAGLIANO, Aaron ,  BARTA, Nicholas

    IPC: E21B43/08 ,  E21B43/10

    Abstract: A sand screen including a frame, a filtration media disposed in contact with the frame, the filtration media being of single-piece unitary construction and exhibiting varying flow properties over a surface of the media, or through a radial thickness of the media. A filtration media being of single-piece unitary construction and exhibiting varying flow properties over a surface area of the media, or through a radial thickness of the media.

    METHODS OF FORMING PIEZOELECTRIC MATERIALS, PIEZOELECTRIC DEVICES, AND ASSOCIATED TOOLING AND SYSTEMS
    9.
    发明申请
    METHODS OF FORMING PIEZOELECTRIC MATERIALS, PIEZOELECTRIC DEVICES, AND ASSOCIATED TOOLING AND SYSTEMS 审中-公开

    公开(公告)号：WO2023069876A1

    公开(公告)日：2023-04-27

    申请号：PCT/US2022/078132

    申请日：2022-10-14

    Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

    Inventor： WISE, Peter Leonard ,  AVAGLIANO, Aaron ,  SAKTHIVEL, Navin

    IPC: H01L41/318 ,  H01L41/39 ,  H01L41/27 ,  H01L41/187

    Abstract: A method of forming a piezoelectric device may include depositing a sol-gel film over a substrate and curing the sol-gel film by impinging light onto an exposed surface of the sol-gel film to form a piezoelectric ceramic element. The method may produce a piezoelectric composite material including at least two piezoelectric ceramic pillars over the substrate. The at least two piezoelectric pillars may include at least one layer. The at least one layer having a gradient density, such that a first portion of the at least one layer proximate the substrate has a density lower than a second portion that is located a greater distance from the substrate than the first portion. The piezoelectric composite material may further include a resin separating the at least two piezoelectric ceramic pillars.

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