西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (2): 19-22.

• 地质勘探 • 上一篇    下一篇

利用Simpat模拟河流相储层分布

尹艳树,吴胜和,翟 瑞,等   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-04-20 发布日期:2008-04-20

The Forecasting of Fluvial Facies Reservoir Distribution by Using Simpat

YIN Yan-shu et al   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-04-20 Published:2008-04-20

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。

关键词: 多点地质统计学, Simpat, 改进, 河流相储层, 大港油田

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.

Key words: multiple-point geostatistics, Simpat, improvement, fluvial facies reservoir, Dagang Oilfield