利用Simpat模拟河流相储层分布

在对河流相储层随机建模中，再现河道连续弯曲的形态是研究重点，也是检验随机建模方法适用性的一个标准。对新发展的多点地质统计学建模技术中的Simpat方法进行了介绍。指出Simpat虽然考虑多个空间点来再现储层形态，但是在条件数据点较少情况下，随机数据模式的选择导致河道连续性仍然存在一定的问题，需要在数据模式选择中充分考虑地质约束。对Simpat进行了改进，通过引入河道中线模型对数据模式选择进行约束，较好地解决了河道连续性再现问题。对大港油田二区六区块明3-5-1储层建模分析表明，改进后的Simpat方法能够更好地再现河道连续性及分布特征。

The Forecasting of Fluvial Facies Reservoir Distribution by Using Simpat

In the construction of reservoir models of fluvial deposits, the channel shape is always the most important aspect and a criteria for the evaluation of the efficience of the modeling methods. The Simpat，which belongs to the newly developed multiple-point geostatistics method, is introduced and its shortcomings of reproduction of discontinuity channel is analyzed. The stochastic selection of data patterns results in this continuity. A constrained method for the selection of data patterns is proposed and integrated into Simpat. The reservoir model of Ming 3-5-1 is constructed by using the improved Simpat and non-improved Simpat in the NO.6 block in No.2,Dagang Oilfield respectively. The result shows that the improved Simpat reveals the channel shape and its distribution better than the non-improved Simpat does.