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(gòu)造復(fù)合圈閉為主的氣藏,開展沉積體系的研究是進(jìn)行儲層評價和預(yù)測的基礎(chǔ),和鄂爾多斯岔地其它地區(qū)一樣,塔巴廟區(qū)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(qū)內(nèi)目的層段的沉積體系特征、亞微相組合特征、垂向演化規(guī)律和有利儲集砂體分布規(guī)律的研究就成為該區(qū)地質(zhì)研究的一項重要內(nèi)容。