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:
Aug. 10, 2021
Filed:
Dec. 30, 2019
Petrochina Company Limited, Beijing, CN;
Dongming Zhi, Beijing, CN;
Lichun Kuang, Beijing, CN;
Xiaojun Wang, Beijing, CN;
Zhongchun Sun, Beijing, CN;
Zhijun Qin, Beijing, CN;
Wei Wang, Beijing, CN;
Ni Zhang, Beijing, CN;
Xinjun Mao, Beijing, CN;
Min Ouyang, Beijing, CN;
Qiusheng Chang, Beijing, CN;
PETROCHINA COMPANY LIMITED, Beijing, CN;
Abstract
A shale oil analysis method and apparatus for continuously characterizing saturation of adsorbed oil and free oil, comprising: obtain NMR T2 spectrum, NMR porosity, oil saturation and wettability indexes of a core samples, determine a lower limit value for the saturation calculation of the absorbed oil based on the NMR T2 spectrum, the NMR porosity, the oil saturation and wettability indices; determining a lower limit value for the saturation calculation of the free oil according to the bulk relaxation Tspectrum of the crude oil of the well interval or an adjacent well interval and the NMR Tspectrum of the core samples; calculating the saturation of the absorbed oil and the free oil, and analyzing the shale oil in the well interval to be analyzed. The solution realizes the quantitative and continuous characterization of the adsorbed oil and the free oil of the shale oil via well logs.