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.

Date of Patent:
Sep. 20, 2011

Filed:

Jun. 26, 2007
Applicants:

Lang Zhan, Pearland, TX (US);

Dhandayuthapani Kannan, Missouri City, TX (US);

James G. Filas, Saint Cloud, FR;

Graham Birkett, Paris, FR;

Inventors:

Lang Zhan, Pearland, TX (US);

Dhandayuthapani Kannan, Missouri City, TX (US);

James G. Filas, Saint Cloud, FR;

Graham Birkett, Paris, FR;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to fluid sampling in a test that is used to determine physical and chemical characteristics of the fluids in a subterranean reservoir. The method reconstructs the entire pressure history of the fluid parcel that is captured in the fluid samplers during a test. Using this reconstructed pressure history of the samples, the quality of the samples, particularly, whether there is a phase change in the samples during the test, can be accurately quantified.


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