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.:
Date of Patent:
Mar. 08, 2022
Filed:
Jan. 30, 2020
Applicant:
Petrochina Company Limited, Beijing, CN;
Inventors:
Hua Tian, Beijing, CN;
Caineng Zou, Beijing, CN;
Shuichang Zhang, Beijing, CN;
Shaobo Liu, Beijing, CN;
Xuesong Lu, Beijing, CN;
Zhichao Yu, Beijing, CN;
Assignee:
PETROCHINA COMPANY LIMITED, Beijing, CN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/24 (2006.01); E21B 49/02 (2006.01); G01N 15/08 (2006.01);
U.S. Cl.
CPC ...
G01N 33/241 (2013.01); E21B 49/02 (2013.01); G01N 15/0886 (2013.01);
Abstract
The present invention a method for determining the gas saturation of a tight reservoir. The method comprises the steps of: determining the pore size distribution of the tight reservoir rock sample, and calculating the free water saturation; calculating the water-membrane water saturation; calculating the corner water saturation; calculating the gas saturation of the tight reservoir rock sample according to the following equation:=100−