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. 12, 2014
Filed:
May. 06, 2009
Youxiang (Jullan) Zuo, Edmonton, CA;
Dingan (Dan) Zhang, Edmonton, CA;
Dong Chengli, Sugar Land, TX (US);
Oliver C. Mullins, Ridgefield, CT (US);
Michael O'keefe, Blackmans Bay, AU;
Youxiang (Jullan) Zuo, Edmonton, CA;
Dingan (Dan) Zhang, Edmonton, CA;
Dong Chengli, Sugar Land, TX (US);
Oliver C. Mullins, Ridgefield, CT (US);
Michael O'Keefe, Blackmans Bay, AU;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method and system for characterizing formation fluids contaminated with drilling mud that compensates for the presence of such drilling mud. The operations that characterize formation fluids contaminated with drilling mud can be carried out in real-time. The operations also characterize a wide array of fluid properties of petroleum samples contaminated with drilling mud in a manner that compensates for the presence of drilling mud. The operations characterize the viscosity and density of petroleum samples contaminated with drilling mud at formation conditions in a manner that compensates for differences between formation conditions and flowline measurement conditions. The operations also derive live fluid density unaffected by contamination of mud filtrate based on a scaling coefficient dependent on measured gas-oil ratio of the formation fluid. This scale factor accounts for excess volume created during mixing processes, which increases the accuracy of characterizations for high gas-oil ratio samples, especially gas condensate.