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:
May. 03, 2022
Filed:
May. 07, 2021
Southwest Petroleum University, Sichuan, CN;
Shuyong Hu, Sichuan, CN;
Bingyang Zheng, Sichuan, CN;
Nana Song, Sichuan, CN;
Xueqiang Guo, Sichuan, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Sichuan, CN;
Abstract
A method and system determines a single-well dynamic reserve and recoverable reserve of a gas-drive reservoir. An example method includes: calculating a gas saturation of a gas-drive reservoir based on a principle of material balance; establishing a relationship between an oil-gas relative permeability ratio and oil-gas flow rates based on Darcy's law; fitting a binomial relationship between the oil-gas relative permeability ratio and the gas saturation based on an oil-gas seepage law; and establishing a gas-drive characteristic curve relationship between a produced gas-oil ratio and a cumulative oil production under a steady seepage flow of the gas-drive reservoir based on the above relationships and the gas saturation, and calculating a single-well dynamic reserve and recoverable reserve of the gas-drive reservoir based on binomial regression coefficients of the binomial relationship and the gas-drive characteristic curve relationship.