公开(公告)号：US20230130123A1

公开(公告)日：2023-04-27

申请号：US17960820

申请日：2022-10-06

Applicant: DarkVision Technologies Inc.

Inventor： Jay Roderick HOPE

IPC: A61B8/00

Abstract: A device and method used to log images of target objects with ultrasound transducers. The object may be a fluid-carrying tubular, such as a pipeline. The transducers operate as phased arrays, insonifying areas of the target object with a plane wave and then storing the reflected signals. The signals are sampled and summed for each pixel, by considering various paths taken by the wave from transmitting to receiving via that pixel. Refraction and reflection from surfaces are used to determine segments of the paths.

公开(公告)号：US11578591B2

公开(公告)日：2023-02-14

申请号：US16707797

申请日：2019-12-09

Applicant: DARKVISION TECHNOLOGIES INC

Inventor： Graham Manders

IPC: E21B47/14 ,  G01V1/48 ,  E21B47/085 ,  G01V11/00

Abstract: A device and method used to correct beamforming of an acoustic phased array in cases of eccentricity of the acoustic device in a tubular. A processor calculates the eccentricity from multiple scan lines and create a geometric model of a well or pipe relative to the device. The processor may correct each scan line's focus and/or angle of incidence at a surface of the well or pipe based on the observed eccentricity.

公开(公告)号：US20220339670A1

公开(公告)日：2022-10-27

申请号：US17765841

申请日：2020-10-13

Applicant: DarkVision Technologies Inc

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

IPC: B06B1/06

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：US11378550B2

公开(公告)日：2022-07-05

申请号：US17035796

申请日：2020-09-29

Applicant: DarkVision Technologies Inc

Inventor： Andrew J. Rae ,  Eric Zillinger

IPC: G06K9/00 ,  G01N29/06 ,  G01S15/89 ,  G06T7/00 ,  G06V10/22

Abstract: A system and method used to image cylindrical fluid conduits, such as pipes, wellbores and tubulars, with ultrasound transducers then process the ultrasound images to detect edges and surfaces. The device and method compute monotonic paths through high energy pixels. Functions are used for dropping, extending and selecting an optimal path based on certain criteria, such as path length, path continuity and path energy. The selected path may be used to model and visualize the tubular along with key features, components and defects in 2D and 3D.

公开(公告)号：US11326445B2

公开(公告)日：2022-05-10

申请号：US17026984

申请日：2020-09-21

Applicant: DarkVision Technologies Inc.

Inventor： Osman S. Malik ,  Graham T. Manders ,  Stephen E. Robinson

IPC: E21B47/16 ,  E21B47/002 ,  B06B1/06 ,  E21B47/09 ,  G01V1/46 ,  G01V1/50 ,  G01V1/52

Abstract: Methods and devices for imaging wells using phased array ultrasound imaging devices is described. The devices enable high resolution real-time imaging of a well during various operations in the well, including during completions, fracturing, milling, fishing and drilling operations. The phased array ultrasound imaging devices may be integrated with other well tools, such as a bottom hole assembly (BHA), fishing tools, milling tools, fracturing tools, and drilling tools, in order to integrate imaging capabilities into such tools.

公开(公告)号：US20220034217A1

公开(公告)日：2022-02-03

申请号：US17373822

申请日：2021-07-13

Applicant: DarkVision Technologies Inc

Inventor： Graham T. MANDERS ,  Kurt KOLB ,  Jacob LAW

IPC: E21B47/002 ,  G01S15/89 ,  G01M3/00 ,  G06T7/00 ,  E21B47/007 ,  E21B17/08

Abstract: A method and system for inspecting casings in a wellbore to determine a mechanical or sealing quality of casing connections. Casing connections may become mechanically weak or start to leak after some period of use in harsh conditions. A radial array of ultrasound transducers images the casing in-situ to create an ultrasound image, which is analyzed to detect the casing connector then analyzed a sealing band of the connector. Machine learning and image processing methods may be used to analyze the images.

公开(公告)号：US20210230995A1

公开(公告)日：2021-07-29

申请号：US17151321

申请日：2021-01-18

Applicant: DarkVision Technologies Inc

Inventor： Eric Zillinger

IPC: E21B47/002 ,  G06T7/00

Abstract: A device, system and method to process acoustic images of tubulars and wellbores. Corrections for real-world logging are calculated and stored in correction Look Up Tables (LUT), which are used to display projections or create geometric models of the wellbore or tubular. The user interface allows the user to interact with the projections to update the LUTs to operate on the images. This process helps correct for real-world challenges such as tool eccentricity, tool rotation, tool angle, and speed of sound differences in order to create a more intuitive rendering.

公开(公告)号：US20210003001A1

公开(公告)日：2021-01-07

申请号：US17026984

申请日：2020-09-21

Applicant: DarkVision Technologies Inc.

Inventor： Osman S. Malik ,  Graham T. Manders ,  Stephen E. Robinson

IPC: E21B47/16 ,  E21B47/002 ,  B06B1/06 ,  E21B47/09 ,  G01V1/46 ,  G01V1/50 ,  G01V1/52

Abstract: Methods and devices for imaging wells using phased array ultrasound imaging devices is described. The devices enable high resolution real-time imaging of a well during various operations in the well, including during completions, fracturing, milling, fishing and drilling operations. The phased array ultrasound imaging devices may be integrated with other well tools, such as a bottom hole assembly (BHA), fishing tools, milling tools, fracturing tools, and drilling tools, in order to integrate imaging capabilities into such tools.