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:
Oct. 22, 2024
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);
CONOCOPHILLIPS COMPANY, Houston, TX (US);
Abstract
The invention relates to a cementing tool () and method for setting a cement plug. Instead of the conventional 'balanced plug', the technique involves pumping cement whilst pulling and rotating the tool. The cementing tool () includes nozzles () for jetting cement which are located in a relatively narrow region () of the tool and a larger diameter choke region () proximal of the nozzles (). The end of the tool () is closed off and tapered. The tool is passed down the well to a location where it is desired to set a plug, then cement is injected whilst rotating and withdrawing the tool. The jets of cement help displace existing fluid in the well thereby reducing mixing of the existing fluid with the cement, The choke region () increases the flow energy, whilst the tapered end () helps prevent disruption to the cement as the tool is withdrawn. The choke region () may be expandable to allow the tool to pass through a cased part of the well and then set a plug in an under-reamed open hole part of the well.