大庆东部低渗透油藏压力传导能力分析

Analysis of the Pressure Conductivity in a Lowpermeability Reservoir in Eastern Daqing

依据不稳定渗流方程，求解了在不同地质和渗流条件下油井的地层压力分布函数．分析了压力传导能力及其影响因素，得到压力在地层中的变化规律．在低渗透油藏内，导压系数与流动系数之间存在“蛇”

Based on the mechanism of unstable flow, the pressure distribution functions of producing well under various geological conditions are derived from unstable flow equation. From the solution to pressure function, the pressure variation in a reservoir is known, therefore, the pressure conductivity and the influential factors can be analyzed. In a lowpermeability reservoir, there is a snake\|shaped relationship between pressure transfer coefficient and flow coefficient.