【摘要】 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。更多还原

【Abstract】 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.更多还原