提高河流相储层建模精度的河道中线约束方法

提出了在建立河流相储层地质模型时提高建模精度的河道中线约束方法.利用基于目标的方法中发展的线模型方法产生河道中线,并将此河道中线用于Simpat方法中,约束数据事件的选择.在河道中线处,仅选择包含河道中线信息的数据事件,而在没有河道中线处,则不选择包含河道中线的数据模式,从而达到更准确再现河流储层的目的.通过理论模型以及实际区块检验证明,加入河道中线约束的Simpat方法较原始Simpat方法能够更准确再现河道连续性分布.表明利用河道中线约束方法能够提高河流相储层建模的精度.

Using the restrain of channel center line to improve the precision of fluvial reservoir modeling

A method of using the restrain of channel center line to improve the precision of fluvial reservoir modeling has been proposed in this paper. The channel center line, generated from the line model building from target -based method, is applied to Simpat method to restrain the selection of data events. Only the data events concerning the channel center line information will be chosen if in the channel center line while the data modes concerning channel center line will not be selected if out of channel center line. So, a fluvial model with higher accuracy will be constructed. According to the conceptual model and practice in field blocks, it is proved that the Simpat method with the restrain of center line is much more accurate than the original Simpat method. The method using the restrain of channel center line can improve the precision of the modeling for fluvial reservoir.