水驱强度对油井压力动态的影响研究

STUDY ON EFFECT OF WATER-DRIVE STRENGTH ON OIL WELL PRESSURE BEHAVIOR

建立了水驱强度影响下的水驱油渗流数学模型 ,在获得数学模型解的基础上 ,计算了考虑井筒储存、表皮效应以及水驱强度影响下油井的压力及压力导数典型曲线 ,分析了压力动态特征 ,通过这些研究为水驱油藏的试井分析提供了理论基础 ,为水驱油藏的识别提供了一种新的手段。

This paper build up mathematical model of water-drive oil seepage flow in the influence of the strength of water-drive for the first time. On the basis of obtaining solution of mathematical model,and taking into account the influence of wellbore storage and skin effect and the strength of water-drive,the paper calculated typical curves of pressure and pressure derivative for oil well in water-drive oil reservoir,analyzed the characteristic of pressure behavior,these works provided theory basis for well test analysis of oil well in water-drive oil reservoir,and a new method for identifying water-drive oil reservoir.