Objective Nowadays,the governments and worldwide energy and environmental scientists have been focusing on CO_2enhanced coalbed methane recovery(CO_2-ECBM)to re
Objective The hydraulic fracturing is still an effective technology for the exploitation of coalbed methane(CBM).However,after the hydraulic fracturing operatio
Objective Dim spots are those gas reservoirs located in relative deeper target strata in which seismic reflection energy remarkably goes down or disappear,and a
1 Introduction The Pearl River Delta(PRD)is located in the north coast area of the South China Sea(SCS).As one of the largest delta in China,only the two latest