06956204 is referenced by 28 patents and cites 26 patents.

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.

Title
Determining fluid properties from fluid analyzer
Application Number
10/249274
Publication Number
6956204 (B2)
Application Date
March 27, 2003
Publication Date
October 18, 2005
Inventor
Hani M Elshahawi
Houston
TX, US
Toru Terabayashi
Kanagawa-ken
JP
Andrew L Kurkjian
Sugar Land
TX, US
Julian Pop
Houston
TX, US
Soraya S Betancourt
Ridgefield
CT, US
Go Fujisawa
Danbury
CT, US
Oliver C Mullins
Ridgefield
CT, US
Peter S Hageman
Houston
TX, US
Chengli Dong
Pearland
TX, US
Agent
Brigitte L Echols
Victor H Segura
J L Jennie Salazar
Assignee
Schlumberger Technology Corporation
TX, US
IPC
G01V 005/00
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