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露头储层沉积体系的准确划分是建立储层地质知识库和研究随机建模方法的基础和关键。储层岩石相的模拟与预测是储层沉积学和油田实际生产的主要课题之一,通过对扇三角洲露头岩石相的模拟研究,总结出了该类扇三角洲沉积体储层建筑结构的模拟与预测方法,经对不同岩石相多种模拟方法的试运算,给出了对于该类沉积体系的最佳模拟方法,并通过实际检验证明是可信的。在本研究中,随着井距的扩大,原始数据点的减少,沉积相模拟的效果逐渐变差,但是该方法能够反映扇三角洲沉积相的分布规律,特别是扇三角洲平原亚相,基本可以恢复露头的原模型。
The accurate division of outcrop reservoir sedimentary system is the foundation and key to establishing reservoir geological knowledge base and studying stochastic modeling method. The simulation and prediction of reservoir lithofacies are one of the major topics in reservoir sedimentology and oilfield production. Through the simulation study on the rock facies of outcrop in fan delta, the simulation and prediction of reservoir structure in this fan-delta sedimentary body are summarized Prediction method, the best simulation method for this kind of sedimentary system is given through the trial operation of many kinds of simulation methods of different lithofacies, and it is proved to be credible by the actual inspection. In this study, with the increase of well spacing, the reduction of original data points and the effect of sedimentary facies simulation gradually deteriorate. However, this method can reflect the distribution of sedimentary facies in the fan delta, especially in the sub-facies of the fan delta plain Restore the outcrop of the original model.