Ordos Basin has a large scale of gas resource,for example,JinBian gasfield well and Sulige Gasfield.Recent year explanation show the Upper Paleozoic 8th member of Shihezi Fm to 2nd member of Shanxi Fm in Gaoqiao-Xinghe area is a main relay gas exploration area.On the basis of digesting and absorbing the pre-studied results and according to the comprehensive analysis of area background,sedimentary characteristics and sand-body morphological feature,we have studied the sedimentary phase and sand body distribu...