准噶尔盆地腹部断裂带地区含油气流体活动特征

Petroliferous Fluid Activity Feature in Fault Belt Areas in Hinterland of Junggar Basin

根据流体活动的矿物岩石学和包裹体地球化学研究,揭示了准噶尔盆地腹部断裂带地区含油气流体活动特征,认为断裂是含油气流体活动的重要通道,并且存在多种性质和多期次的流体活动。沿断裂活动的流体富集Mn、Fe元素,流体流动具有幕式特征,断裂上盘可能是优势的运移方向。

Based on the studies of mineralogy-petrology of fluid activity and geochemistry of fluid inclusion, the petroliferous fluid activity feature in fault belt areas in hinterland of Junggar basin is presented. It is considered that the faults are as major channels for the petroliferous fluid activity or migration characterized by multi-properties and multistage. The fluids migrating along the faults are enriched with elements of Mn and Fe and have episodic flowing characteristic. It is suggested that the upper walls of the faults could be as dominant directions of petroliferous fluid migration in this area.