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:
Sep. 10, 2013
Filed:
Feb. 02, 2009
Xu Wu, Tokyo, JP;
Tsutomu Yamate, Yokohama, JP;
Toru Terabayashi, Sugar Land, TX (US);
Ricardo Vasques, Bailly, FR;
Chengli Dong, Sugar Land, TX (US);
Peter S. Hegeman, Stafford, TX (US);
Xu Wu, Tokyo, JP;
Tsutomu Yamate, Yokohama, JP;
Toru Terabayashi, Sugar Land, TX (US);
Ricardo Vasques, Bailly, FR;
Chengli Dong, Sugar Land, TX (US);
Peter S. Hegeman, Stafford, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Example methods and apparatus to detect phase separation in downhole fluid sampling operations are disclosed. An example method to detect a phase separation condition of a fluid from a subterranean involves obtaining a sample of the fluid, measuring a first characteristic value of the sample, measuring a second characteristic value of the sample and comparing the first characteristic value to a first reference value associated with a single-phase condition of the fluid to generate a corresponding first comparison result. The example method then compares the second characteristic value to a second reference value associated with the single-phase condition of the fluid to generate a corresponding second comparison result and detects the phase separation condition of the fluid based on the first and second comparison results.