Application of “two-step” facies-constrained stochastic modeling to reservoir description in Yanchang Oilfield
Online published: 2011-08-20
The geological modeling for low permeability sandstone reservoir in Yanchang Oilfield is characterized by lack of data, poor accuracy degree and more uncertainty factors for reservoir description. Based on dense well logging interpretation, the “two-step” facies-constrained stochastic modeling method combining with core analysis and production performance are used to establish the facies model, and then carry out the porosity and the permeability modeling, in order to decrease the uncertainty for reservoir description. Taking BLC oil region in Yanchang Oilfield as an example, the “two-step” facies-constrained stochastic modeling method is applied to establish the low permeability sandstone reservoir model suitable for the actual production status in this area, which provides geological foundation for reasonable development decision and improving development effect.
SUN Guoqiang , XIE Mei , ZHANG Yongshu , ZHAO Mingjun , KANG Jian , SHI Jian . Application of “two-step” facies-constrained stochastic modeling to reservoir description in Yanchang Oilfield[J]. Lithologic Reservoirs, 2011 , 23(4) : 110 -114 . DOI: 10.3969/j.issn.1673-8926.2011.04.020
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