脉冲试井数值模拟的现场应用

Field Application of Pulse Test Numerical Simulation.

通过油藏数值模拟技术 ,建立了多层油藏非均质及多相流体条件下的理论模型 ,并做出脉冲试井的压力理论曲线。现场应用中 ,在充分考虑地质及沉积特征的前提下 ,通过调整静态参数得到了理论曲线与实测曲线的最佳拟合 ,最终获得模拟区域内多层非均质渗透率分布图。该方法所获得的地层水平渗透率分布与其它方法所获得的渗透率分布互相补充 。

By use of reservoir numerical simulation technique,a theoretical model for a multilayered reservoir was createdunder the condition of heterogeneity and multiphase fluid,and a theoretical pulse test pressure curve was plotted.In the field application, on the premise of fully considering the geological and sedimentary characteristics andthrough adjustment of static parameters,the best match of theoretical curve with actual curve was realized,andmultilayered and heterogeneous permeability distribution graph in the range of simulation was finally obtained.The horizontal permeability distribution obtained with this method and the permeability distribution obtained byother methods can be supplemented each other to provide reliable basis for design of tertiary recovery program.