Occurrence Characteristics And Resource Potential Evaluation of Coalbed Methane in Gaojiazhuang Well Field of Qinshui Basin
Based on the parameter data of coalbed methane wells in the study area,an analysis is conducted on the occurrence characteristics of cap rocks and reservoir properties.It is preliminarily believed that the degree of coal metamorphism in the study area is high,and the microscopic components of coal rock,mainly composed of vitrinite,are conducive to the generation of coalbed methane.However,the central part of the study area has dense fault structures,poor sealing effect of surrounding rocks,and the western part is deeply buried,resulting in poor reservoir properties,which are not conducive to the enrichment and preservation of coalbed methane.The volume method was used to estimate the coalbed methane resources of No.3 and No.15 coal seams in the study area.The evaluation results show that the coalbed methane resources in the study area belong to small coalbed methane fields with medium burial depth.The abundance of geological reserves is low and the mining value is limited.It is suggested to further strengthen the exploration and find out the occurrence of coalbed methane.
Gaojiazhuang Well FieldCoalbed methaneOccurrence characteristicsResource potential evaluation
NETL
NSTL
万方数据
