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:
Dec. 16, 2025
Filed:
Feb. 28, 2025
China University of Petroleum (Beijing), Beijing, CN;
Hao Chen, Beijing, CN;
Xiliang Liu, Beijing, CN;
Borui Li, Beijing, CN;
Yang Li, Beijing, CN;
Weiming Cheng, Beijing, CN;
Xiaofeng Tian, Beijing, CN;
Xianhong Tan, Beijing, CN;
Lijun Zhang, Beijing, CN;
Renfeng Yang, Beijing, CN;
Mingsheng Zuo, Beijing, CN;
Baoxi Yang, Beijing, CN;
Ruwei Zhang, Beijing, CN;
Zhizhen Lin, Beijing, CN;
Qiuting Li, Beijing, CN;
Xinyu Qi, Beijing, CN;
Feng Luo, Beijing, CN;
Linxi Yang, Beijing, CN;
Pengbo Li, Beijing, CN;
Wen Liu, Beijing, CN;
CHINA UNIVERSITY OF PETROLEUM (Beijing), Beijing, CN;
Abstract
A minimum miscible pressure prediction method for a CO-crude oil system considering reservoir well spacing is provided, including: obtaining characteristic parameters of each component of crude oil; based on the characteristic parameters of each component of the crude oil, obtaining corresponding bubble point or dew point pressures, as well as corresponding oil-gas interfacial tension, oil phase and gas phase densities, and viscosities under different injected gas contents; based on the corresponding bubble point or dew point pressures, as well as the corresponding oil-gas interfacial tension, oil phase and gas phase densities, and viscosities under different injected gas contents, constructing a minimum miscible pressure prediction model for the CO-crude oil system considering the reservoir well spacing; and based on the minimum miscible pressure prediction model for the CO-crude oil system considering the reservoir well spacing, obtaining minimum miscible pressure values for the CO-crude oil system under different reservoir well spacing.