公开(公告)号：US11959379B2

公开(公告)日：2024-04-16

申请号：US18505882

申请日：2023-11-09

Applicant: Anhui University of Science and Technology

Inventor： Shaobo Li ,  Lei Wang ,  Xingang Niu ,  Chuanqi Zhu ,  Zhenyu Yang ,  Lipeng Chen ,  Yu Zhang

IPC: E21B47/06 ,  C04B28/00 ,  E21F17/18

CPC classification number: E21B47/06 ,  C04B28/00 ,  E21F17/18

Abstract: Disclosed is a method for measuring gas pressure of a close-distance seam group simultaneously, including the following steps: constructing a pressure-measuring drill hole inclined downwards; lowering a first seam piezometer tube, lowering a baffle and a polyurethane blocking material after a tube head reaching a lowermost seam; and installing a gas pressure gauge; lowering a second seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a second layer of seam; and installing the gas pressure gauge; lowering a nth seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a nth layer of seam; and installing the gas pressure gauge; injecting a high-water and quick-solidifying material into the drill hole; and connecting the gas pressure gauges through optical fibers, and connecting the gas pressure gauges with a ground control system.