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:
Aug. 22, 2017
Filed:
Apr. 16, 2014
Applicant:
Vetco Gray Controls Limited, Nailsea Bristol, GB;
Inventor:
Nicholas Josep Ellson, Bristol, GB;
Assignee:
GE Oil & Gas UK Limited, Nailsea, Bristol, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/06 (2012.01); G01K 11/00 (2006.01); G01K 7/42 (2006.01);
U.S. Cl.
CPC ...
E21B 47/06 (2013.01); E21B 47/065 (2013.01); G01K 7/42 (2013.01); G01K 11/00 (2013.01);
Abstract
A method for calculating a value representative of a downhole temperature in a hydrocarbon well, wherein the well includes production tubing inside an outer tubing, an annulus is provided between the production tubing and the outer tubing, and the annulus receives a hydraulic control line supplying hydraulic fluid for the control of a downhole device, the method including sensing the pressure of hydraulic fluid in the control line at the wellhead, and using a measurement of the pressure to calculate the value representative of the downhole temperature.