摘要
根据油气初次运移的研究历史和现状,本文指出沉积盆地中的石油初次运移是以分离的相态与水一起或单独排出生油岩的,其动力是高压异常等因素,只有生油岩孔隙中烃类饱和度超过临界值(10％～20％)时,初次运移才实现。本文介绍了初次运移现象的观察和研究方法,对生油潜力不同的生油岩排烃过程、通道和效率作了论述,引入了初次运移的两相流动概念和方法。
This paper suggests that hydrocarbons generated in. both shales and carbonates were expelled as separate phases with water or alone.The primary migration was caused by the overpressure in the source rocks, and occurred only when a critical saturation of hydrocarbons in the pores of the soucc rocks was reached (e.g. 10% or 20%) , The observations and investigations on the phenomena of the expulsion from source rocks are reviewed in this paper, and the process, pathway and efficiency of the expulsion from different potential source rocks are discussed. The concept of tvo phase flow and a mathematical model of primary migration are established to the benefit of the estimation of hydrocarbon resources and the simulation of basin evolution.
出处
《石油大学学报（自然科学版）》
CSCD
1990年第1期107-115,共9页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
沉积盆地
石油初次运移
生油岩
烃饱和度
数值模拟
油气资源预测
Sedimentary basins
Crude oil
Primary migration
Source rocks
Hydrocarbon saturation
Mathematical simulation
Estimation ofhydrocarbon resources
