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:
Oct. 18, 2005
Filed:
Mar. 27, 2003
Chengli Dong, Pearland, TX (US);
Peter S. Hageman, Houston, TX (US);
Oliver C. Mullins, Ridgefield, CT (US);
Go Fujisawa, Danbury, CT (US);
Soraya S. Betancourt, Ridgefield, CT (US);
Julian Pop, Houston, TX (US);
Andrew L. Kurkjian, Sugar Land, TX (US);
Toru Terabayashi, Kanagawa-ken, JP;
Hani M. Elshahawi, Houston, TX (US);
Chengli Dong, Pearland, TX (US);
Peter S. Hageman, Houston, TX (US);
Oliver C. Mullins, Ridgefield, CT (US);
Go Fujisawa, Danbury, CT (US);
Soraya S. Betancourt, Ridgefield, CT (US);
Julian Pop, Houston, TX (US);
Andrew L. Kurkjian, Sugar Land, TX (US);
Toru Terabayashi, Kanagawa-ken, JP;
Hani M. Elshahawi, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method for determining properties of a formation fluid including obtaining data related to an optical density at a methane peak and an optical density at an oil peak for a fluid sample at a plurality of times, calculating an apparent gas-oil-ratio of the sample fluid from the optical density of the fluid sample at the methane peak to the optical density of the fluid sample at the oil peak at each of the plurality of times based on the data, selecting a power function of a sampling parameter for a buildup of the apparent gas-oil-ratio, calculating an exponential constant of the power function based on the data, and determining at least one selected from the group consisting of a contamination free gas-oil-ratio and a percent contamination.