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:
May. 16, 2017

Filed:

Dec. 17, 2014
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Kentaro Indo, Sugar Land, TX (US);

Kai Hsu, Sugar Land, TX (US);

Julian J. Pop, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/12 (2012.01); E21B 49/08 (2006.01); G01V 8/02 (2006.01); E21B 49/10 (2006.01); G01N 33/24 (2006.01);
U.S. Cl.
CPC ...
E21B 49/087 (2013.01); E21B 49/10 (2013.01); G01N 33/24 (2013.01);
Abstract

Optical spectral data associated with a formation fluid flowing through a downhole formation fluid sampling apparatus is obtained. Based on the obtained optical spectra data, a plurality of measures each relating the formation fluid to a corresponding one of a plurality of different fluid types are estimated. Blending coefficients each corresponding to a different one of the different fluid types are determined and utilized with the predetermined mapping matrices, each corresponding to a different one of the different fluid types, to obtain a blended mapping matrix. A parameter of the formation fluid is then predicted based on a projection of the obtained spectral data onto the blended mapping matrix.


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