关键词: 油田早期评价, 建模策略, 随机建模, 随机地震反演, 地震约束, 相控建模

Abstract: A geo-modeling strategy was put forward on the basis of geological concept and stochastic simulation theories,incorporating multi-disciplinary knowledge and various data.Using the integrated seismic inversion and stochastic modeling technologies,the facies model and facies-controlled petrophysical model were developed on the basis of constraint of seismic impedance.In the stochastic inversion,the geo-statistics was utilized to couple the dense vertical sampling of the log data with the dense areal sampling of the seismic data to develop a highresolution impedance model and then built a 3D geological model constrained by seismic impedance.The uncertainties of inter-well reservoir prediction could greatly decrease.

Key words: early evaluation of oilfield, modeling strategy, stochastic modeling, stochastic seismic inversion, seismic constraint, facies-controlled modeling