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.:
Date of Patent:
Dec. 10, 2024
Filed:
Mar. 26, 2020
Applicant:
Ardyne Holdings Limited, Aberdeen, GB;
Inventor:
Alan Fairweather, Aberdeen, GB;
Assignee:
ARDYNE HOLDINGS LIMITED, Aberdeen, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); E21B 37/00 (2006.01); E21B 43/116 (2006.01);
U.S. Cl.
CPC ...
E21B 33/13 (2013.01); E21B 37/00 (2013.01); E21B 43/116 (2013.01);
Abstract
A method for well abandonment in a cased well bore by perforating, washing and cementing to provide a plug over a longitudinal section of the well, wherein logging of the washed outer annulus is performed to evaluate the effectiveness of the wash and determine the most appropriate plugging technique. One of perf, wash and cement; cut and pull; and section milling are described dependent upon the material left in the outer annulus following the washing step. Verification of the washing step in a perf wash and cement well abandonment procedure is obtained.