岩石方向渗透率的确定方法研究

研究与实践表明，由于受地质因素的控制，岩石渗透率的大小往往表现出明显的各向异性。各向异性介质内岩石方向渗透率的确定，是油田开发研究中一项非常重要而又困难的工作。为此，基于渗流力学理论推导了一种新的岩石方向渗透率计算模型，文献中的已有计算模型只是新模型的一个特例，因而新模型更具有代表性和普遍适应性。另外，在此新模型基础上，提出了确定岩石最大、最小方向渗透率及其方位角的方法，并给出了详细的实施步骤。

Research on the Methods to Determine Directional Permeability of Rocks

Research and practice prove that there is obvious anisotropy in rock permeability. It is an important and difficult task to determine the directional permeability of rocks in anisotropic media. Hence, one new model to calculate the directional permeability of rocks based on the theory of fluid mechanics in porous medium is established in this paper. The existed calculation model in literatures is just one special case for the new model, and the new one is more representative and suitable. Moreover, based on the new model, methods to determine the highest and smallest directional permeability and their angles of orientation are established, and the calculation steps are provided in detail.