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:
Feb. 26, 2008
Filed:
Jan. 27, 2006
Shigeru Sato, Inagi, JP;
Yves Barriol, Houston, TX (US);
Shigeru Sato, Inagi, JP;
Yves Barriol, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods and systems for thermal compensation of pressure measurements by a pressure gauge. Errors in pressure values are reduced by utilizing a predetermined correlation between the error in pressure measurements, due to temperature gradient in a pressure gauge, and the temperature gradient caused by temperature at a surface of the pressure gauge and temperature at an inner portion of the pressure gauge. Thermally corrected pressure values are derived based on the correlation between the pressure errors and the temperature gradients in conditions such as due to fast and large pressure variations in oil wells.