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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 10801941 B1

PDFFull Text
Date of Patent:
Oct. 13, 2020

Filed:

Apr. 29, 2019

Isotope nuclear magnetic method for analyzing ineffective water absorption of rock pores

Applicant:

China University of Petroleum (East China), Qingdao, Shandong, CN;

Inventors:

Mingming Tang, Shandong, CN;

Shuangfang Lu, Shandong, CN;

Huifang Ma, Shandong, CN;

Yang Gao, Shandong, CN;

Shunwei Wu, Shandong, CN;

Jing Zhang, Shandong, CN;

Haisheng Hu, Shandong, CN;

Wenbiao Huang, Shandong, CN;

Jiafan Tang, Shandong, CN;

Min Wang, Shandong, CN;

Jijun Li, Shandong, CN;

Xueping Liu, Shandong, CN;

Hongkun Tan, Shandong, CN;

Changhong Chu, Shandong, CN;

Assignee:

China University of Petroleum (East China), Qingdao, Shandong, CN;

Attorney:

Lei Yu

Primary Examiner:

Walter L Lindsay, Jr

Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01N 15/08 (2006.01); G01N 33/24 (2006.01); G01N 13/00 (2006.01);
U.S. Cl.
CPC ...
G01N 15/0806 (2013.01); G01N 13/00 (2013.01); G01N 15/08 (2013.01); G01N 33/24 (2013.01); G01N 33/246 (2013.01); G01N 2015/0813 (2013.01); G01N 2015/0866 (2013.01);
Abstract

An isotope nuclear magnetic method for analyzing ineffective water absorption of rock pores includes steps of: saturating core pores of a core sample with a wetting phase fluid of water HO, and obtaining a core Tspectrum after being saturated with the water; re-saturating the core pores with a wetting phase fluid of heavy water DO, and obtaining a rock baseline Tspectrum; injecting fluorinated oil into the core sample saturated with the heavy water; injecting the water HO, simulating a water injection process, and injecting the fluorinated oil, so as to analyze a content of immobile water and obtain a residual Tspectrum, wherein a range formed by a difference between the residual Tspectrum and the rock baseline Tspectrum is an ineffective water absorption portion of the rock pores, and an ineffective water absorption amount is obtained.

Find Patent Forward Citations

Tang, Mingming. (2020). Isotope nuclear magnetic method for analyzing ineffective water absorption of rock pores (U.S. Patent No. 10801941). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10801941

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