关键词: 岩石相, 模拟, 扇三角洲, 原型模型

Abstract: Exact classification of the outcrop depositional system is the base for building geological knowledge data-base and studying stochastic simulation.Simulation and prediction of reservoir lithology is one of the main subjects of reservoir sedimentology and oilfield production.By fan-delta lithology simulation study,a set of technology about reservoir structure simulation and prediction of fan-delta had been established.Through test calculation of different lithologies by using many simulation methodogies,the best simulation methodology for this depositional system had been determined and it is proved to be reliable by practice.With the widening of well spaces and the sparsity of original data,the simulation precision of depositional microfgces decrease gradually.The SIS method can reflect the distribution of fan-delta microfaces,especially the fan-delta plain,and the outcrop prototype model can be basically rebuilt.

Key words: lithology, simulation, fan-delta, proto-type model