TRAP CHARACTERISTICS AND FURTHER EXPLORATION OF CARBONIFEROUS GAS POOLS AT THE EASTERN FOOT OF HUAYINGSHAN MOUNTAIN

The exploration degree of Carboniferous system at the eastern foot of Huayingshan Mountain is higher.Twelve traps have been explored,and ten gas pools obtained.Only the traps at the northern sector of Lin produce water,and the circum mountain traps at the southern sector do not produce gases because of too thin residual thickness and the loss of reservoir.In the stable area of Carboniferous residual thickness at the northern sector,the gas pools are all tectonic traps which are dominated by host anticlinal traps and consistent with regional tectonics.In the changeable area of Carboniferous residual thickness at the southern sector,the gas pool traps are complex.Besides tectonic traps,strata host anticlinal compound,strata stacking fault compound,strata fault compound and unaka traps exist together with the change of residual thickness.Under certain conditions,solution lithologic traps or fault solution lithologic traps also occur.The targets of further exploration are mainly underfault overthrust,strata fault compound,strata host anticlinal compound,host anticlinal ane solution lithologic traps.