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:
Aug. 16, 2022

Filed:

Mar. 05, 2019
Applicant:

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

Inventors:

Yiqiao Tang, Allston, MA (US);

Yi-Qiao Song, Newton Center, MA (US);

Sharath Chandra Mahavadi, Lexington, MA (US);

Ravinath Kausik Kadayam Viswanathan, Sharon, MA (US);

Shawn David Taylor, Reading, MA (US);

Gary Potten, Spring, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/28 (2006.01); G01N 24/08 (2006.01); G01R 33/44 (2006.01);
U.S. Cl.
CPC ...
G01N 33/2823 (2013.01); G01N 24/081 (2013.01); G01R 33/448 (2013.01);
Abstract

Nuclear magnetic resonance (NMR) relaxation and/or diffusion measurements are used to deduce fluid compositional information such as a chain-length distribution, which may then be used to predict the true boiling points (TBP) of a sample of a complex hydrocarbon fluid mixture, such as a crude oil. The NMR measurements may be considered a fast and portable proxy measurement in estimating fluid TBP distributions in lieu of distillation methods, or the simulated distillation by gas chromatography.


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