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异常流体压力是由于流体流通不畅导致孔隙流体压力不平衡造成的 ,其存在能延缓储层的成岩作用和源岩的成熟进程 ,它的分布和大小控制了油气从源岩排出的时间和运移方向。有些沉积体内的孔隙流体压力已接近岩石所能承受的破裂强度 ,它将直接影响圈闭的有效性。每个盆地由于岩性组合和沉积埋藏史的差异 ,其异常流体压力的产生和演化都有自己独特的特点。异常流体压力的研究虽然取得了很大的进展 ,但许多问题还有待深入研究。
Abnormal fluid pressure is caused by unbalanced pore fluid pressure due to poor fluid circulation. Its existence can delay the diagenesis of the reservoir and the maturation of the source rock. Its distribution and size control the time and transport of oil and gas discharged from the source rock Move direction. The pore fluid pressure in some sediments is close to the rock burst strength, which will directly affect the effectiveness of traps. Due to the difference of lithological assemblage and buried-burial history, each basin has its own unique characteristics for the generation and evolution of abnormal fluid pressure. Although great progress has been made in the study of abnormal fluid pressure, many problems still need further study.