Invention Application
- Patent Title: ACOUSTIC SURFACE IMAGING USING TIME OF FLIGHT
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Application No.: US16783060Application Date: 2020-02-05
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Publication No.: US20200249203A1Publication Date: 2020-08-06
- Inventor: Graham Manders , Mike Halpenny
- Applicant: DarkVision Technologies Inc.
- Applicant Address: CA BC North Vancouver
- Assignee: DarkVision Technologies Inc.
- Current Assignee: DarkVision Technologies Inc.
- Current Assignee Address: CA BC North Vancouver
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@32c40ed9
- Main IPC: G01N29/06
- IPC: G01N29/06 ; G01N29/07 ; G01N29/22 ; G01N29/265 ; G01N29/24 ; G01N29/44

Abstract:
A system, device and method for imaging, measuring and identifying surface features in a tubular, such as a casing, wellbore, or pipe. The device comprises an ultrasound transducer for sonifying an area of the surface of the tubular, with a pulse intercepting axial locations of the sonified area at different times. Reflected signals are processed using their time of flight to interpret the reflected signals as axial locations of features on the surface of the tubular. Multiple sonified areas are partially overlapped in the axial direction to capture features redundantly. Reflections from the multiple areas are combined to remove noise and strengthen reflections from real features. A geometric model of the surface of the tubular is rendered and displayed. Capturing larger areas per frame increases the logging rate and oversampling improves the resolution and signal to noise ratio.
Public/Granted literature
- US11644441B2 Acoustic surface imaging using time of flight Public/Granted day:2023-05-09
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