异常流体高压研究现状与展望

Present Situation and Development Trend of the Research on Abnormal Fluid Pressure

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。

An abnormal fluid pressure caused by unbalanced pore fluid pressure due to fluid channel restriction,could retard the diagenesis of reservoirs and the maturation process of source rocks The time and direction of migration of oil and gas delivered from source rock are controlled by the distribution and the magnitude of abnormal fluid pressure Pore fluid pressure within some sedimentary bodies is approaching to the fracturing strength that a rock could withstand It would directly affect the validity of traps In each basin , abnormal fluid pressure is characteristic by generation and evolution because of its different lithologic assemblage and burial history Though great progress in studying abnormal fluid pressure is achieved, some problems still exist for further study