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:
Oct. 14, 2025
Filed:
Jun. 14, 2025
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Guoqiang Xue, Beijing, CN;
Weiying Chen, Beijing, CN;
Junjie Xue, Beijing, CN;
Yulian Zhu, Beijing, CN;
Pengfei Lv, Beijing, CN;
Abstract
A borehole-to-surface near-source transient electromagnetic high-precision exploration method pioneers a BSEM acquisition method, obtained high-precision electrical data is processed and interpreted, which is a technological innovation and breakthrough in applying electrical exploration for gas-water differentiation in low-porosity, low-permeability gas reservoirs. The high-precision electrical gas-water differentiation method serves as a novel and effective gas-water differentiation approach complementary to conventional borehole/well logging and seismic exploration, it enables direct qualitative and quantitative evaluation of gas-bearing targets and is a gas-water differentiation technology that can indicate boundaries and scopes of the gas-bearing targets, thus can provide high-confidence gas-rich target indications for development of borehole pattern arrangement, especially horizontal borehole/well arrangement, and achieve the goal of efficient development with fewer borehole/wells but higher yields. The exploration method achieves both high resolution resistivity of the target formations and large-radius lateral resistivity detection, and serving as an effective geophysical exploration tool for unconventional oil-gas-water detections.