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. 26, 2018
Filed:
Aug. 11, 2014
Applicant:
Halliburton Energy Services, Inc, Houston, TX (US);
Inventors:
Kenneth L. Schwendemann, Flower Mound, TX (US);
Donald H. Perkins, Houston, TX (US);
Assignee:
HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/12 (2006.01); E21B 17/01 (2006.01); E21B 34/04 (2006.01); E21B 21/08 (2006.01); E21B 33/035 (2006.01); E21B 33/064 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 34/12 (2013.01); E21B 17/01 (2013.01); E21B 21/08 (2013.01); E21B 34/045 (2013.01); E21B 33/035 (2013.01); E21B 33/064 (2013.01); E21B 2034/007 (2013.01);
Abstract
A circulation mechanism in a subsea assembly is selectively actuated to allow fluid communication between the riser annulus and tubing string to immediately kill the well using heavy-weight fluid in the riser annulus; perform well control operations by adjusting the weight or other properties of fluid in the tubing string or riser annulus; and/or to circulate the riser of a deep-water well undergoing well testing or intervention.