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:
Jan. 19, 2021
Filed:
Sep. 02, 2016
Applicant:
Statoil Petroleum As, Stavanger, NO;
Inventors:
Henrik Manum, Trondheim, NO;
Qin Li, Porsgrunn, NO;
Assignee:
EQUINOR ENERGY AS, Stavanger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 21/10 (2006.01); F16K 37/00 (2006.01); G01F 1/74 (2006.01); G01F 15/00 (2006.01); G01L 13/00 (2006.01); G01L 19/00 (2006.01); G01N 9/36 (2006.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 21/106 (2013.01); F16K 37/0083 (2013.01); F16K 37/0091 (2013.01); G01F 1/74 (2013.01); G01F 15/005 (2013.01); G01L 13/00 (2013.01); G01L 19/0092 (2013.01); G01N 9/36 (2013.01);
Abstract
A method of monitoring the state of a choke valve in a managed pressure drilling system using a valve state parameter to represent the state of the choke valve includes measuring the flow rate of a material across the choke valve, measuring the pressure differential of the material across the choke valve, obtaining a valve characteristic of the choke valve, and calculating the valve state parameter using the flow rate, the pressure differential and the valve characteristic.
Manum, Henrik. (2021). System and method for monitoring the state of a choke valve in a managed pressure drilling system (U.S. Patent No. 10895121). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10895121
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile