双重介质流线模拟技术在天然裂缝性油藏开发中的应用

为了更好地把握天然裂缝性油藏的开发动态,提升大型复杂油藏模型的运算速度,建立了以流线模拟技术为基础的双重介质模型,对天然裂缝性油藏的井型、注水速率、注水周期等影响采收率的因素进行研究,确定了油藏的最佳井型、最佳注水速率、最佳注水周期等指导油藏开发的关键参数,证实了流线模拟技术可以更直观地显示三维驱替前缘。在流线模拟技术与有限差分方法运算时间的比较中,也证实流线模拟技术具有更快的运算速度。

Application of Streamline Simulation Technique Based on Dual Porosity Model in the Reasonable Development of Naturally Fractured Reservoir

In order to know the recovery performance of the naturally fractured reservoirs and speed up the operation of large complex reservoir model, the dual porosity model is developed based on the streamline simulation technique. This model is used to study the effect of the well type, injection rate, injection cycle on the recovery rate and determine the important parameters which direct the development of the reservoir. The study proves that three-dimensional flooding front can be shown better by this technique. The comparison of the calculation time between the streamline simulation technique and the finite difference method also confirms that streamline simulation technique has better simulation velocity.