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融合地震和测井信息的三角洲沉积微相随机建模研究——以扶余油田二夹五区块为例
引用本文:李晓锋,彭仕宓,王海江,李佳利.融合地震和测井信息的三角洲沉积微相随机建模研究——以扶余油田二夹五区块为例[J].西安石油大学学报(自然科学版),2008,23(5).
作者姓名:李晓锋  彭仕宓  王海江  李佳利
作者单位:1. 中国石油大学(北京)资源与信息学院,北京,102249
2. 中海油,研究中心,北京,100027
3. 大庆油田,采油六厂,黑龙江,大庆,163114
基金项目:国家重点基础研究发展计划(973计划)
摘    要:小型三角洲沉积储层厚度薄,砂体的规模小,侧向变化快,主要以砂泥岩间互的形式出现.利用三维地震资料具有覆盖面广和采集密度大的优点,以沃尔索相律和沉积微相与地震波阻抗之间的概率关系作为约束,应用序贯指示模拟结合同位协同克里金的方法融合地震和测井信息,建立了三角洲沉积微相的地质模型.实践结果证实,该方法能够对相变较快的三角洲沉积井间沉积微相的不确定性进行表征,提高了模型预测的可靠性.

关 键 词:三角洲  沉积微相  地质模型  随机建模  同位协同克里金  波阻抗  扶余油田

Stochastic modeling study of deltaic sedimentary microfacies by integrating seismic information with logging information——taking Erjiawu block in Fuyu oilfield as an example
LI Xiao-feng,PENG Shi-mi,WANG Hai-jiang,LI Jia-li.Stochastic modeling study of deltaic sedimentary microfacies by integrating seismic information with logging information——taking Erjiawu block in Fuyu oilfield as an example[J].Journal of Xian Shiyou University,2008,23(5).
Authors:LI Xiao-feng  PENG Shi-mi  WANG Hai-jiang  LI Jia-li
Abstract:Small-scale delta sediment has some characters as follows:its reservoir is thin,its sand-body scale is small,its lateral facies variation is quick,and it is mainly composed of laterally intervallic sand-rock layers and mud-rock layers.The stochastic geologic model of deltaic sedimentary microfacies is established,in which seismic information is integrated with logging information by combining sequential indicating simulation method with collocated co-Kriging method and the probability relationship between Walther phase rule and sedimentary microfacies and seismic impedance is as constraint.The modeling method utilizes the advantages of the broad coverage and high acquisition density of 3D seismic data.The practice proves that the modeling can well characterize the uncertainty of the interwell delta microfacies of the delta sediments of the quick lateral facies variation,which enhances the reliability of model forecast.
Keywords:deltaic sedimentary microfacies  geologic model  stochastic modeling  collocated co-Kriging  seismic impedance  Fuyu oilfield
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