Analysis of conditions for the formation of a coal methane accumulation in the Qinshui coal methane field;

The coal reservoir properties and regularities in Qinshui coal field are presented with the seismic data analysis based on analyzing the geologic conditions.

Analysis on water-filling factors in Pingshang district,Qinshui coalfield;

The CBM geological conditions and reservoir characteristics in the Qinshui coalfield,Shanxi are researched.

Through the study of the geological background and gas content of the coalbeds in the south of the Qinshui coalfield, gas content, geological structure, coal thickness, pressure grades and effective embedding deepness as primary factors are picked out in this paper.

Aimed at general situation of CBM in Qinshui Basin,strata condition and exploitation condition,introduced parameter well,producing well,multi-bran chsurface CBM horizontal development well and cluster wells drilling technology,drilling tool assemblage,well structure and well quality requirements.

The paper analyzes the defects of logging in the geological exploration of coalfields and sums up the comprehensive explanation of coal-bed gas fields with geological logging,geophysical logging and other data of analysis and testing.