公开(公告)号：US20240427053A1

公开(公告)日：2024-12-26

申请号：US18775694

申请日：2024-07-17

Applicant: Chengdu University of Technology

Inventor： Bing ZHANG ,  Yuyong YANG ,  Xiaoyang LIN ,  Qian LI ,  Zhengyang WANG ,  Kai YANG ,  Zhuo LI ,  Xiaolong HE

IPC: G01V20/00 ,  G01V11/00

Abstract: A method for identifying high-quality lithium-potassium-rich brine reservoirs based on parameter sensitivity analysis is provided. Basic characteristics of a brine reservoir area are determined. The sensitive parameter analysis of the brine reservoir area is performed by rock physics modeling and cross-plotting of logging curves to determine a rock physics parameter range and a logging parameter range of the brine reservoir area. The relationship between the wave impedance and the water saturation based on the rock physics model. A coordinate range of a water-rich reservoir is determined based on the inversion result of the water saturation. Within the coordinate range of the water-rich reservoir, a coordinate range of the lithium-potassium-rich brine reservoir is determined based on the natural gamma inversion result obtained by waveform phase-controlled inversion, so as to achieve geophysical identification and prediction of high-quality brine reservoirs in the marine strata.