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. 22, 2020
Filed:
Sep. 15, 2017
Applicant:
Conocophillips Company, Houston, TX (US);
Inventors:
David D. Hearn, Houston, TX (US);
Casey Hirschmann, Houston, TX (US);
Randall S. Shafer, Houston, TX (US);
Assignee:
ConocoPhillips Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/134 (2006.01); E21B 29/02 (2006.01); E21B 33/12 (2006.01); E21B 33/13 (2006.01); E21B 47/06 (2012.01); E21B 36/00 (2006.01);
U.S. Cl.
CPC ...
E21B 33/13 (2013.01); E21B 36/00 (2013.01); E21B 47/06 (2013.01);
Abstract
A composition and methods for setting a plug for well bores undergoing plugging and abandonment operations. Methods include placing a blocking device below the plug location and creating a void space above the blocking device; placing a heat resistant base plate above the blocking device and introducing nano-thermite clusters and expandable bismuth alloy pellets into the void space; igniting the thermite and cooling the melted alloy to form a permanent plug in the void space.