一、引言石油在孔渗性差的细屑岩中以分散状态生成后,储集到孔渗性好的粗粒裂隙岩中呈聚集状态要经过复杂的运移过程。富含粒隙、裂隙和溶隙的渗透层、不整合风化壳和断层构成了石油的运移层。石油可以从生油层经运移层进入储集层或直接进入储集层,并在储集层内再聚集而成油藏。在储集层内聚集后,因条件变化可发生再运移,形成差异聚集或破坏油藏。 I. INTRODUCTION After oil is formed in a dispersed state in finely porous rocks with poor porosity and permeability, it accumulates in the coarse-grained fractured rock with good porosity and permeability and undergoes complicated migration processes. Permeable layers rich in gaps, crevices and sags, unconformably weathered crusts and faults form the transport layer for petroleum. Oil can migrate from the reservoir to the reservoir via the transport layer or directly into the reservoir and re-aggregate in the reservoir to form an oil reservoir. After accumulating in the reservoir, re-migration may occur due to the change of conditions to form a pool of differences or destroy the reservoir.