随机反演在储层预测中的应用  

The application of Stochastic seismic inversion in reservoir prediction

作　　者：刘百红[1] 李建华 魏小东 郑四连[1] 

机构地区：[1]中国石化石油勘探开发研究院南京石油物探研究所,南京210014 [2]中国石油东方地球物理公司研究院,涿州072751

出　　处：《地球物理学进展》2009年第2期581-589,共9页Progress in Geophysics

摘　　要：针对隐蔽油气藏储层预测的需要,开展了地震反演研究,根据目前的实际应用将储层预测中的基于模型的地震反演分为三个实施阶段:即构造反演、声波波阻抗或弹性波阻抗反演以及岩性反演,并对每个阶段的目的、关键技术及其原理进行了详细描述,尤其是详细描述了基于马尔科夫链的蒙特卡罗随机模拟技术.最后给出了一个综合应用测井、地质、地震资料进行反演,从而进行储层预测的实例.Seismic inversion is a key action in reservoir prediction. In this paper, the seismic inversion based on model is divided into three steps, that is structaral inversion, impedance inversion （acoustic impedance or elastic impedance ） and lithology inversion （including reservoir properties inversion）. The objective, key techniques and the principles of these three steps are depicted in detail. In particular, the stochastic inversion based on Markov Chain Monte Carlo simulation is described thoroughly. A reservoir prediction case that integrated well logging, geology and seismic data through seismic inversion is presented in the end.

关 键 词：地质统计学 储层预测 地震反演 随机反演 波阻抗反演 岩性反演 随机模拟 

分 类 号：P631[天文地球—地质矿产勘探]