百色盆地油气运聚特征分析

根据油源对比、原油特征及其在纵横向上的分布特点、地层压力和流体包裹体等资料，综合利用各项油气运移特征参数，对油气二次运移特征进行分析，总结油气聚集规律，对油气运聚的有利区带进行预测。

The oil and gas migration in the Baise Basin, Guangxi

The Baise Basin is a Tertiary residual basin grounded upon the folded basement of the Nanpanjiang Early Mesozoic depression in Guangxi. Two groups of faults developed mostly during the deposition of the Lower Tertiary strata have provided the major channels for the vertical and lateral migration and accumulation of oil and gas from the central and deeper parts of the basin. The oil pools are distributed mainly in the Tiandong depression in the eastern part of the basin. There is a general trend of oil and gas migration from the higher pore fluid pressure and higher residual pore fluid pressure areas to the lower ones. The favourable zones for oil and gas migration include the central faulted swales of the Tiandong depression, Zisang-Liuchou-Nayanggou fan systems and Nabi swells in the northern steep slope zone, central faulted swales of the western depression, southern slope zone of the Tiandong depression, and central faulted swales of the Toutang depression.