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. 06, 2020
Filed:
May. 03, 2016
Applicant:
Cameron International Corporation, Houston, TX (US);
Inventor:
Dennis P. Nguyen, Pearland, TX (US);
Assignee:
Cameron International Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/04 (2006.01); E21B 23/00 (2006.01); E21B 17/02 (2006.01); E21B 23/02 (2006.01); E21B 33/03 (2006.01); E21B 23/01 (2006.01);
U.S. Cl.
CPC ...
E21B 33/04 (2013.01); E21B 17/02 (2013.01); E21B 23/00 (2013.01); E21B 23/01 (2013.01); E21B 23/02 (2013.01); E21B 33/03 (2013.01);
Abstract
A system including a wellhead hanger, such as a casing hanger, and a running tool with a stopping protrusion that reduces the likelihood over-torqueing of threads coupling the running tool to the wellhead hanger and that reduces the break-out torque for disengaging the running tool and wellhead hanger from each other upon the completion of casing string cementing. Limiting the thread-per-inch count of the hanger and running tools, respectively, to the range of two threads-per-inch to four threads-per-inch also lowers the break-out torque between the hanger and running tool.