公开(公告)号：WO2022269395A1

公开(公告)日：2022-12-29

申请号：PCT/IB2022/055284

申请日：2022-06-07

Applicant: DARKVISION TECHNOLOGIES INC.

Inventor： ZAHIRI AZAR, Reza ,  HOPE, Jay ,  MANDERS, Graham

IPC: G01S15/89 ,  G01N2291/044 ,  G01N2291/106 ,  G01N29/04 ,  G01N29/046 ,  G01N29/22 ,  G01N29/221

Abstract: A device and method used to log images of cylindrical fluid filled tubulars with ultrasound transducers. The transducers operate as phased arrays, insonifying the conduit at plural angles. Reflections from the conduit form images that are combined to create a compound image or correct eccentricity. The frame rate is sped up by defocussing the transmitted beam. This allows the device to log very long pipelines, wells or other tubulars with very high resolution.

公开(公告)号：WO2021074792A1

公开(公告)日：2021-04-22

申请号：PCT/IB2020/059611

申请日：2020-10-13

Applicant: DARKVISION TECHNOLOGIES INC

Inventor： HOPE, Jay ,  MANDERS, Graham ,  VANDENBERG, Connor ,  ROSE, Jacob William

IPC: G01H11/08 ,  A61B8/00 ,  E21B47/085 ,  G01S7/52

Abstract: An acoustic transducer array and method of making same. A first metal layer is deposited on a first side of a piezoelectric composite to form a common electrode and a second metal layer is provided over the obverse side. Portions of the second metal layer are removed to create a plurality of individual electrodes. A third metal layer may be deposited onto the plurality of individual electrodes, the third metal layer being thicker than the second metal layer. The individual electrodes extend beyond the piezoelectric composite in the elevation direction to create electrode leads. Metal layers may be provided by lithography, a wireframe or a foil sheet.

公开(公告)号：EP4359820A1

公开(公告)日：2024-05-01

申请号：EP22827762.0

申请日：2022-06-07

Applicant: Darkvision Technologies Inc.

Inventor： ZAHIRI AZAR, Reza ,  HOPE, Jay ,  MANDERS, Graham

IPC: G01S15/89

CPC classification number: G01N2291/263620130101 ,  G01N2291/10620130101 ,  G01N29/262 ,  G01N29/043 ,  G01N29/0654

公开(公告)号：EP4045880A1

公开(公告)日：2022-08-24

申请号：EP20876631.1

申请日：2020-10-13

Applicant: Darkvision Technologies Inc.

Inventor： HOPE, Jay ,  MANDERS, Graham ,  VANDENBERG, Connor ,  ROSE, Jacob William

IPC: G01H11/08 ,  A61B8/00 ,  E21B47/085 ,  G01S7/52