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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12205258 B1

PDFFull Text
Date of Patent:
Jan. 21, 2025

Filed:

Mar. 20, 2020

Downhole imaging

Applicant:

E.v. Offshore Limited, Norwich, GB;

Inventors:

Jonathan Brian Rudd, Norwich, GB;

Christopher Scott, Norwich, GB;

Jonathan Thursby, Norwich, GB;

John Blackwell, Ely, GB;

Assignee:

E.V. OFFSHORE LIMITED, Norwich, GB;

Attorney:

Hayes Soloway P.C.

Primary Examiner:

Reza Aghevli

Int. Cl.
CPC ...
G06T 5/80 (2024.01); E21B 47/002 (2012.01); E21B 47/07 (2012.01); G01K 13/00 (2021.01); G06T 7/00 (2017.01); G06T 7/70 (2017.01); G06T 7/90 (2017.01); G06V 10/143 (2022.01); G06V 10/25 (2022.01); G06V 10/75 (2022.01); H04N 23/55 (2023.01); H04N 23/56 (2023.01); H04N 23/698 (2023.01); H04N 23/90 (2023.01); H04N 23/50 (2023.01);
U.S. Cl.
CPC ...
G06T 5/80 (2024.01); E21B 47/002 (2020.05); E21B 47/07 (2020.05); G01K 13/00 (2013.01); G06T 7/0002 (2013.01); G06T 7/70 (2017.01); G06T 7/90 (2017.01); G06V 10/143 (2022.01); G06V 10/25 (2022.01); G06V 10/751 (2022.01); H04N 23/56 (2023.01); H04N 23/698 (2023.01); H04N 23/90 (2023.01); G06T 2207/10024 (2013.01); G06T 2207/30168 (2013.01); G06T 2207/30172 (2013.01); H04N 23/555 (2023.01);
Abstract

This invention relates to a method of imaging a downhole region of interest. In particular this invention relates to a method of processing images captured downhole to remove or reduce distortions due to the optical system as a function of the temperature experienced by the optical system in the downhole environment. A method of imaging a downhole region of interest comprises contemporaneously capturing an image of a region of interest and recording a temperature associated with the region of interest; selecting a pre-defined set of distortion data from a plurality of pre-defined sets of distortion data based on the recorded temperature; and applying the selected set of distortion data to the captured image to create an un-distorted image, wherein the pre-defined set of distortion data comprises distortion values associated with a range of field angles at a specified temperature.

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