Taking the Lower Permian volcanic rocks of Ke-Xia area in Junggar Basin as an example

this paper discussed the problems of volcanic reservoir research.As there is still no commonly accepted classification scheme of volcanic rocks

different classification criteria were adopted in exploration and development of volcanic reservoirs.Thus it is urgent to find a suitable classification scheme of volcanics for exploration and development of volcanic reservoirs in China.There are many big challenges in the study on the volcanic eruption patterns and facies distribution due to strong volcanic facies heterogeneity

variable eruption types

complex volcanic facies and facies sequence

common overlapping of volcanic rocks of different origins

as well as limited drilling data of volcanic reservoirs.The characteristics and genesis of fractures especially micro-fractures in volcanic reservoirs are still poorly understood.To solve these problems

more attentions should be paid to surface diagenesis of volcniac rocks and advanced logging techniques should be applied to research on volcanic reservoirs.