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:
Jun. 27, 2023
Filed:
Aug. 19, 2021
Conocophillips Company, Houston, TX (US);
Lars Hovda, Tananger, NO;
Dan Mueller, Houston, TX (US);
James C. Stevens, Houston, TX (US);
Amal Phadke, Houston, TX (US);
Praveen Gonuguntla, San Antonio, TX (US);
CONOCOPHILLIPS COMPANY, Houston, TX (US);
Abstract
The invention relates to a method of conducting a perf wash cement ('P/W/C') abandonment job in an offshore oil or gas well annulus, in particular the washing or cementing operation using a rotating head with nozzles dispensing wash fluid or cement at pressure. A new design of bottom hole assembly is proposed in which the cementing tool has a relatively large diameter in order to optimize pressure whilst the wash tool has a relatively small diameter. The wash process, for a number of reasons, appears to be less sensitive to tool diameter and making the wash tool smaller reduces the overall risk of stuck pipe.