Characteristics and accumulation of Paleozoic volcanic rock reservoirs in Hongche fault belt,Junggar Basin

With the development of exploration,more and more volcanic rock reservoirs discovered have become important for the petroleum exploration and development in northwestern margin of Junggar Basin.Paleozoic volcanic rock in Hongche fault belt is an important filed for the next exploration.Based on the analysis of the types,characteristics of the reservoir and seal rocks of the volcanic rock reservoirs in this area,it indicated that the structural environments,lithofacies characteristics,fracture development and the preservation conditions are the four main key factors for the hydrocarbon accumulation,which is advantageous for the evaluation and exploration deployment.