Application of Stochastic Modeling Technology to the Sha26 Block in Shanian Oilfield

Abstract

Shanian oilfield is constituted by a number of complex fault-blocks, after nearly 10 years of waterflooding development, the relation between oil and water underground reservoirs is complex. In this case, it is difficult to predict accurately the distribution of inter-well reservoir parameters and the rich region of residual oil. Thus it is an emphasis to build a fine reservoir model, as available knowledge is limited about reservoir geometries, variogram based on stochastic modeling can be an appropriate method, where it is possible to acknowledge trends, reservoir direction continuity, facies fractions and heterogeneity of physical property. This paper puts the seismic, well logging, geological and develop dynamic research results all together, and focus a variety of stochastic modeling methods to achieve facies-controlled property modeling, ensuring the three-dimensional quantitative geological model reasonable.