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:
Jun. 18, 2024
Filed:
Jul. 26, 2023
China University of Petroleum (East China), Qingdao, CN;
Sen Wang, Qingdao, CN;
Kun Wang, Qingdao, CN;
Qihong Feng, Qingdao, CN;
Shunming Li, Qingdao, CN;
Yijing Du, Qingdao, CN;
Zheng Wu, Qingdao, CN;
Xiang Wang, Qingdao, CN;
Jiyuan Zhang, Qingdao, CN;
Xianmin Zhang, Qingdao, CN;
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Qingdao, CN;
Abstract
The present disclosure relates to a method and system for predicting a time-varying principle of waterflooding oil reservoir formation parameters. Firstly, a Tspectrum-pore size relation model is built according to a measured pore size distribution curve and a measured Tspectrum. A Tspectrum of a rock sample at different water injection amounts during a waterflooding physical simulation experiment is acquired. The acquired Tspectrum at different water injection amounts is then converted into a pore size distribution at different water injection amounts, and a pore network model at different water injection amounts is built with the pore size distribution. Oil-water two-phase flow simulation is performed, and a corresponding oil-water two-phase relative permeability curve of the rock sample at different pore volume (PV) multiples is obtained eventually. The oil-water two-phase relative permeability curve is the formation parameters in the waterflooding oil reservoir.