According to the deposit mained lithologic trap , lithologic - structure complex trap , the sedimentary system research is the base of reservoir assessment and prognosis . the gas concentration of shanxi group and xiashihezi group of permain system in tabamiao area was mainly constrolled by sedimentary facies belt . therefore , it is an important content in this geological research area that study sedimentary systems character of object layers , research combined character of subfacies and microfacies , and its regular between vertical evolution and reservoir sand bodies 對于以巖性圈閉、巖性?構造復合圈閉為主的氣藏,開展沉積體系的研究是進行儲層評價和預測的基礎,和鄂爾多斯岔地其它地區一樣,塔巴廟區塊二疊系山西組和下石盒子組氣層的富集主要受沉積相帶的控制,因此,區內目的層段的沉積體系特征、亞微相組合特征、垂向演化規律和有利儲集砂體分布規律的研究就成為該區地質研究的一項重要內容。