Evaluation of Sinian Doushantuo formation shale gas content and fracturing property of Eyangye1 well in Hubei province

The mainly marine shale gas formations are Ordovician aschiza-Longmaxi Silurian and Cambrian Niutitang and Sinian Doushantuo in south China.The oldest strata of shale gas are Doushantuo formation of Sinian that was discovered until now in China.Through Eyangye 1 well in Hubei，we find well shale gas indication in Doushantuo formation.The thickness shale gas formation is 141 m and the core desorption gas content is 1.8 t/m³.Through comparison of the shale reservoir characteristics difference of Doushantuo formation and Longmaxi formation，after analyzing the shale gas content and fracturing evaluation of Doushantuo formation，we want to give some well provision and advice to future exploration and reservoir fracture of this same shale gas formation.