塔里木盆地巴什托普背斜石炭系油气藏形成条件

Forming Condition of Carboniferous Reservoir in Bashitop Anticline, Tarim Basin

从烃源岩热演化史、构造形成演化史、储集岩的成岩作用史等方面分析论证了巴什托普背斜石炭系油气藏的形成演化并建立了“下断上褶”的成藏构造模式.早期断裂的多期活动对巴什托普背斜石炭系油气藏的形成起着至关重要的作用,它不仅改善了储集层的储集条件,促进了圈闭的形成,而且沟通了烃源岩与储集岩之间的联系,起着油气运移的输导作用.

On the basis of thermal evolution history of source rock, structural evolution history and diagenesis history of reservoir rock, this paper analysed formation and evolution of Carboniferous reservoir in Bashitop anticline, and established a 'lower-fault and upper fold' reservoir-forming model. Mutiple movements of faulting in early stage are very important to formation of Carboniferous reservoir in Bashitop anticline, not only improving accumulation condition of reservoir, accelerating formation of trap, but Unking up source rock and reservoir rock, playing a conductive role in oil/gas migration.