National Major Scientific Research Instrument Development Project of China

AN ANALOGUE EXPERIMENTAL SYSTEM FOR TECTONICALLY DEFORMED COAL IN-SITU COALBED METHANE RECOVERY BY HORIZONTAL WELL CAVERN COMPLETION AND SRESS RELIEF（41727801）

Broadly developed tectonically deformed coals(TDC) and their aboundant hosted CBM resource are remarkable characteristics concerning coal and CBM resources in China. However, applying current CBM exploration and development technology based on gas exploitation theory of rewatering-depressure desorption can not realize efficient recovery of CBM in TDC. R&D of the instrument system will aim to break down technology bottleneck of TDC CBM development and complement technology innovation of coal-gas total mining by means of surface wells in China, found on theoretical innovation of horizontal well cavern completion-stress relief-gas desorption-gas production, integrate and intersect multiple subjects such as CBM Geology, CBM Engineering, Drilling Engineering, Petroleum Development Engineering, Chemical Engineering and Instrument Science and Technology, apply methods of instrument systematical design, supporting experiments and tests and numerical simulation, focus on 6 critical techniques, including coal measure strata architecture analogue and reconstruction, reciprocated drilling and reaming with horizontal well, horizontal well cavern stimulation for stress relief and permeability enhancement, vertical well lifting of mixture composed of water, gas and dense coal fines, gas-water-coal fine efficient separation and collection and device information and control, consequently manufacture and machine corresponding 6 subsystems and integrate them into an original instrument system for researches. The system function orientation is embodiment and test platform for CBM exploration and development major theoretical and technological innovation as well as an indispensable instrument system to manufacture coming equipment for TDC CBM development.

Foundation approval

Introduction plan of foreign top talents

Introduction plan of foreign top talents

We have been approved the National Foreign Experts Program “Introduction plan of foreign top talents” in 2019. We have co-founded “International innovation team for efficient exploitation of coalbed methane and disaster and emission reduction” with Prof. Jingsheng Ma form Heriot-Watt University, Prof. Sevket Durucan from Imperial College of Science, Prof. Alexei Vasilevich Milkov from Colorado School of Mines, Prof. Zhejun Pan form CSIRO, and Prof. Bernhard Martin Krooss from RWTH Aachen University. Our team focus ontheoretical research and technological system innovation on efficient exploitation of coalbed methane, disaster and emission reduction of coal mine. Our goal is toform a theoretical system of coalbed methane exploration and exploitation suitable for geological conditions of coalbed in China, and break through the existing technology bottleneck.

Foundation approval