岩屑浆液回注场地储层容量及影响半径评估

Assessment of Reservoir Capacity and Influence Range in Slurry Injection

摘要:

在连续定量注入方式下针对影响储层容量及影响半径的两个关键参数即不同地层埋深与注入层渗透率，采用数值模拟的方法进行参数敏感性分析.结果表明不同地层埋深及地层渗透率变化对储层容量近似为指数型变化，对影响半径近似为线性变化.因此，在实际工程中对储层容量及影响半径评估时应根据不同的回注量需要综合考虑地层埋深及地层渗透率的影响.

Abstract:

In a slurry reinjection project, the evaluation of reservoir storage capacity and influence range are two important aspects, especially during the process of design and construction. Two key parameters, the formation depth and the formation permeability, were evaluated and their sensitivities were analyzed by using numerical simulation method for the case of injection with constant rate. Our results show that the reservoir storage capacity can be approximated as an exponential function of the injection formation depth and permeability. The influence range is kind of linear function of the two parameters. The results indicate that storage capacity and influence range can be significantly affected by the two parameters. Therefore, in the process of evaluation of reservoir storage capacity and influence range, the influence of formation depth and permeability should be seriously considered.