Application of two-dimensional trend surface to geological modeling of Chang 8 oil reservoir set in Fuxian area
Online published: 2012-02-20
Due to the complexity of variation function analysis for modeling adjustment, only using stochastic modeling is difficult to obtain ideal effect in areas with complex geological conditions. In this case, we can introduce twodimensional trend surface analysis method to constrain the stochastic modeling. Taking Chang 8 oil reservoir set in Fuxian area as an example, this paper utilized the method of vectoring sedimentary facies map and assigning the generated two-dimensional trend surface to carry out sedimentary facies modeling, and adopt the two-dimensional trend surface generated by isochore interpolation method to constrain the stochastic simulation of porosity. The result shows that the sedimentary facies model and porosity model established by this method respectively match the sedimentary facies and porosity distribution well in the study area. At the same time, the two-dimensional trend surface analysis method can also be combined with other modeling constraint method to constrain the geological model.
Key words： volcanic rocks; lithofacies; seismic facies; overflowfacies; Santanghu Basin
SI Xueqiang , CHEN Wei , YANG Zhili , WANG Xin , SANG Tingyi , WEN Chuanjiang . Application of two-dimensional trend surface to geological modeling of Chang 8 oil reservoir set in Fuxian area[J]. Lithologic Reservoirs, 2012 , 24(1) : 100 -103 . DOI: 10.3969/j.issn.1673-8926.2012.01.019
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