Control of tectonic evolution on gas generation and occurrence of Zhuozishan Coalfield
In order to study the control effect of tectonics and its evolution on gas generation and occurrence in the Zhuozishan Coalfield,the burial history of coal bearing strata,gas generation and loss period in coalfield were simulated by using the burial history simulation of coal bearing basin by analyzing the distribution and evolution characteristics of regional tectonics.Research showed that the coal measures strata in the Zhuozishan Coalfield had experienced two gas generation peaks,and the formation period of geological sedimentary traps in the area was earlier than the period of gas generation in the coal measures strata,which was conducive to gas pres-ervation.At the same time,the repetition of strata caused by thrust napping structures created favorable conditions for gas occurrence.The gas occurrence in Zhuozishan Coalfield was obviously affected by the tectonics in the area,and the gas distribution had obvious re-gional characteristics.According to the tectonics distribution characteristics in the coalfield,Zhuozishan Coalfield was divided into three gas geological units.The research results have important guiding significance for gas control in the Zhuozishan Coalfield.
万方数据
维普
