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.:

US 6573715 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 03, 2003

Filed:

Feb. 16, 2001
Applicant:
Inventors:

James D. King, San Antonio, TX (US);

Qingwen Ni, San Antonio, TX (US);

Armando De Los Santos, San Antonio, TX (US);

Assignee:

Southwest Research Institute, San Antonio, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/00 ;
U.S. Cl.
CPC ...
G01V 3/00 ;
Abstract

A method and apparatus ( ) for detecting and measuring the amount of crude oil in underground rock formations. EPR measurements are used to calculate the amount of crude oil, and may be calibrated to determine the particular type of crude oil. These measurements may be used in conjunction with NMR measurements, to provide accurate estimations of pore size and permeability.


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King, James. (2003). Porosity and permeability measurement of underground formations containing crude oil, using epr response data (U.S. Patent No. 6573715). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6573715

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