公开(公告)号：US20230358131A1

公开(公告)日：2023-11-09

申请号：US18119836

申请日：2023-03-10

Applicant: DarkVision Technologies Inc.

Inventor： Timothy Luu ,  Graham Manders ,  Damian Nesbitt

IPC: E21B47/002 ,  H04N23/50

CPC classification number: E21B47/0025 ,  H04N23/555

Abstract: A device and method used to inspect wellbores, cased or uncased using cameras. Improvements in downhole optical imaging are provided using telecentric lens, prisms and mirrors, or structured lighting. Stereoscopic arrangements and ultrasound sensor may provide 3D or contour information. The images are stored on the tool and analyzed later. The present tool overcomes the deficiencies currently experience by downhole camera operators, such as poor scale and perspective.

公开(公告)号：US11795816B2

公开(公告)日：2023-10-24

申请号：US16817215

申请日：2020-03-12

Applicant: DarkVision Technologies Inc.

Inventor： Steve Wrinch

IPC: G01V1/48 ,  E21B47/14 ,  E21B47/002 ,  E21B17/10

CPC classification number: E21B47/14 ,  E21B47/002 ,  G01V1/48 ,  E21B17/1021 ,  G01V2210/48

Abstract: A device and method to compress and store ultrasound data from an ultrasound logging device. The logging device is deployed in a well or pipe to be logged with one or more ultrasound transducers, preferably an array of transducers. On-board the device, are processors and memory units for convolving the ultrasound data with a wavelet transformation to generate wavelet coefficients and then compress the wavelet coefficients to generate compressed wavelet coefficients. The compressed wavelet coefficients are stored on the memory units and transferred to a remote computer once the device leaves the well or pipe.

公开(公告)号：US11733380B2

公开(公告)日：2023-08-22

申请号：US17091271

申请日：2020-11-06

Applicant: DarkVision Technologies Inc

Inventor： Timothy Luu ,  Anas Mahmoud

IPC: G06T7/73 ,  G01S15/88 ,  G06F16/587 ,  G06F16/215 ,  E21B47/002 ,  G01S15/89 ,  G06N3/04 ,  G06N3/08 ,  E21B47/007 ,  E21B17/08 ,  G01M3/00 ,  G06T7/00 ,  G06F18/214 ,  G06V10/82 ,  G06V10/44 ,  G06V20/10

CPC classification number: G01S15/88 ,  E21B17/08 ,  E21B47/007 ,  E21B47/0025 ,  G01M3/00 ,  G01S15/8945 ,  G06F16/215 ,  G06F16/587 ,  G06F18/214 ,  G06N3/04 ,  G06N3/08 ,  G06T7/0002 ,  G06T7/74 ,  G06V10/454 ,  G06V10/82 ,  G06V20/10 ,  E21B2200/20 ,  E21B2200/22 ,  G06T2207/10132 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: A method, apparatus and system for locating external apparatus mounted to a tubular in a wellbore. The identification of apparatus, such as cable clamps, enables other tools in the string to operate more precisely. A computer model is used to locate the apparatus from acoustic images, which images are acquired using a downhole device having an acoustic sensor or acoustic array. The model may be a classifier, which may be machine trained to classify whether an apparatus is present, its location and its orientation. Automating this locating enables very long wellbores to be processed quickly.

公开(公告)号：US20230203942A1

公开(公告)日：2023-06-29

申请号：US18118138

申请日：2023-03-07

Applicant: DarkVision Technologies Inc

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

IPC: E21B47/107 ,  G01S15/89 ,  G01S15/88 ,  G01F1/663 ,  G01F1/74 ,  E21B47/002

CPC classification number: E21B47/107 ,  G01S15/8979 ,  G01S15/88 ,  G01F1/663 ,  G01F1/74 ,  G01S15/8922 ,  G01S15/8929 ,  E21B47/002 ,  E21B43/11

Abstract: A device and method for imaging, measuring and identifying multiphase fluid flow in wellbores using phased array Doppler ultrasound. The device includes a radially-configured or ring-shaped ultrasound transducer that when deployed in a well in Doppler mode can measure the velocity of radially flowing fluids in the wellbore and generate a 3D image of radial flow in the wellbore, including flowback into the wellbore after fracturing operations, or flow leaving the wellbore during water injection operations. The ring-shaped ultrasound transducer can also simultaneously operate in a B-mode to generate a B-mode image of the wellbore liner upon which the Doppler image can be overlaid. The device may also include a forward facing ultrasound transducer either instead of or in place of the ring-shaped transducer for obtaining information and images on axial flow in the wellbore in Doppler mode, and the location of phase boundaries and phase locations in B-mode.

公开(公告)号：US11619125B2

公开(公告)日：2023-04-04

申请号：US17389918

申请日：2021-07-30

Applicant: DarkVision Technologies Inc

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

IPC: E21B47/107 ,  G01S15/89 ,  G01S15/88 ,  G01F1/663 ,  G01F1/74 ,  E21B47/002 ,  E21B43/11 ,  E21B43/26

Abstract: A device and method for imaging, measuring and identifying multiphase fluid flow in wellbores using phased array Doppler ultrasound. The device includes a radially-configured or ring-shaped ultrasound transducer that when deployed in a well in Doppler mode can measure the velocity of radially flowing fluids in the wellbore and generate a 3D image of radial flow in the wellbore, including flowback into the wellbore after fracturing operations, or flow leaving the wellbore during water injection operations. The ring-shaped ultrasound transducer can also simultaneously operate in a B-mode to generate a B-mode image of the wellbore liner upon which the Doppler image can be overlaid. The device may also include a forward facing ultrasound transducer either instead of or in place of the ring-shaped transducer for obtaining information and images on axial flow in the wellbore in Doppler mode, and the location of phase boundaries and phase locations in B-mode.

公开(公告)号：US20210105405A1

公开(公告)日：2021-04-08

申请号：US17035887

申请日：2020-09-29

Applicant: DarkVision Technologies Inc

Inventor： Stephen Robinson ,  Kurt Kolb

IPC: H04N5/232 ,  H04N5/225 ,  G01S15/89

Abstract: A device and method used to image wells and other fluid-carrying tubulars having localized features of interest. The device scans large areas of the tubular first in a low-resolution mode, then identifies areas that contain those localized features with some probability. The device images the identified areas in a high-resolution mode and stores the images for further image processing. The device may comprise two sensors axially spaced-apart on the device, which sensors may be electromagnetic, acoustic, or cameras.

公开(公告)号：US20200055196A1

公开(公告)日：2020-02-20

申请号：US16539866

申请日：2019-08-13

Applicant: DarkVision Technologies Inc.

Inventor： Mike Halpenny ,  Matt James ,  Graham Manders

IPC: B25J15/00 ,  E21B47/12 ,  E21B47/00 ,  B25J9/00

Abstract: A device and method for manipulating a robotic end effector in a well. Actuators manipulate the end effector independently through multiple degrees of freedom to improve the perspective of the end effector. An imaging sensor may be used to image, measure and identify features of a well and objects located therein. The sensor may be an ultrasound transducer, camera or x-ray sensor arranged radially, axial or distributed over a 2D surface. The end effector may be connected to a tool, such as a fishing tool, a welder, a milling tool, or a repair tool.

公开(公告)号：US20180156025A1

公开(公告)日：2018-06-07

申请号：US15737122

申请日：2016-06-17

Applicant: DarkVision Technologies Inc.

Inventor： Graham T. MANDERS ,  Osman S. MALIK ,  Stephen E. ROBINSON ,  Jay Roderick HOPE

IPC: E21B47/00 ,  G01V1/52 ,  G01V1/46 ,  G01V1/00 ,  B06B1/06 ,  G01N29/024 ,  G01N29/24 ,  G01N29/26 ,  G01N29/34

CPC classification number: E21B47/0002 ,  B06B1/0625 ,  G01N29/024 ,  G01N29/2437 ,  G01N29/262 ,  G01N29/341 ,  G01V1/006 ,  G01V1/46 ,  G01V1/52

Abstract: Methods and devices for imaging wells using ultrasound is described. The devices include a modular imaging device having a telemetry module and a radial imaging module and/or forward imaging module. The radial imaging module includes a ring shaped phased array ultrasonic transducer array for generating images on the length of a wellbore. Various lens and housing configurations for the radial imaging module are described. The forward imaging module includes an ultrasonic transducer comprising one or more elements and having an adjustable viewpoint for generating images of obstructions found in a wellbore. Advanced imaging modes for a radial imaging module include multiple aperture and spiral wave imaging mode.

公开(公告)号：US20250034984A1

公开(公告)日：2025-01-30

申请号：US18915378

申请日：2024-10-15

Applicant: DarkVision Technologies Inc

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

IPC: E21B47/002 ,  B06B1/06 ,  G01N29/024 ,  G01N29/24 ,  G01N29/26 ,  G01N29/34 ,  G01V1/00 ,  G01V1/46 ,  G01V1/52

Abstract: A method for imaging a wellbore in a spiral wave imaging mode using a phased array ultrasonic radial imaging probe having an annular transducer array comprising a plurality of elements, the method comprising the steps of a) pulsing a first element in the transducer array that forms part of a first sequence of elements, b) pulsing a second element that forms part of the first sequence of elements, c) repeating steps a) and b) for each element in the first sequence with a time delay between steps a) and b), d) receiving signals for each element in the first sequence, e) applying time delays to the received signals to achieve virtual beamforming and form imaging data, f) repeating steps a) to e) for additional sequences of elements in the transducer array, and g) coherently summing the imaging data from each sequence to form a 3D image of the wellbore.

公开(公告)号：US20240337626A1

公开(公告)日：2024-10-10

申请号：US18703718

申请日：2023-11-20

Applicant: DarkVision Technologies Inc.

Inventor： Graham Manders ,  Jay Roderick Hope

IPC: G01N29/04 ,  G01N29/26 ,  G01N29/265 ,  G01N29/44

CPC classification number: G01N29/041 ,  G01N29/262 ,  G01N29/265 ,  G01N29/4463 ,  G01N2291/0289 ,  G01N2291/106 ,  G01N2291/2634

Abstract: A device and method for non-destructive testing of an object, such as a pipe, well casing, plane wing, rail track, weldment, bridge or manufactured part. A phased array of ultrasonic transducers moves relative to the part in one direction, while transmitting a steered wave in another direction to capture the texture from the object's surface. Diffuse and specular components of the received reflection signals are separated and beamformed for visualization. The object is then viewable as a 3D image with a texture map of the object's surface.