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:
Sep. 22, 2026
Filed:
Dec. 05, 2024
Hydra Systems As, Tananger, NO;
Rick Watts, Houston, TX (US);
Stein Haavardstein, Tananger, NO;
Lars Hovda, Tananger, NO;
James C. Stevens, Bartlesville, OK (US);
Dan Mueller, Houston, TX (US);
Brett Borland, Houston, TX (US);
Amal Phadke, Houston, TX (US);
Praveen Gonuguntla, San Antonio, TX (US);
Hydra Systems AS, Tananger, NO;
Abstract
A perf wash cement ('P/W/C') abandonment job is conducted 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. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).