摘要
以声波测井及地震勘探所得速度谱资料为基础,通过泥岩压实研究,探索研究区流体古压力相对分布及其与已知含油性间的关系。进而为预测有利远景区提供依据.研究结果表明,对研究区油气运聚起着比较重要作用的水动力条件有:(1)三段式压力曲线中过剩压力递增段对油,特别是气的遮挡作用;(2)二段式压力曲线过剩压力递增段与正常式压力曲线的正常压力段中油的聚集作用;(3)平面上过剩压力低值区对油气运移聚集的控制作用:(4)外来压力源、烃源的注入作用。
This study deals mainly with relative distribution of fluid paleopressure and its relation with the known oil and gas discoveries in the study area.Results of this study suggest that hydrodynamic features important to hydrocarbon migration and accumulation are the following: a.the segment of excess pressure increase in the triple-segment pressure curve,which exerts barrier effect to migratory oil and particularly gas. b.the segment of excess pressure increase in the bi-segment curve and the normal pressure of normal pressure curve.It is believed that these 2 segments represent the kinds of pressure regime which can help hydrocarbon to accumulate.c.the low excess pre sure area in mapview which is thought to govern migration and accumulation of hydrocarbon.d.introdution of extraneous pressure and hydrocarbon into the system.
出处
《中国海上油气（地质）》
1990年第6期21-30,共10页
China Offshore Oil and Gas(Geology)
