摘要
利用储层弹性模量可以描述不同类型的岩性和流体,但是单一弹性模量在储层预测时通常具有多解性。考虑到弹性模量流体因子(Elastic Modulus Fluid Factor,EMFF)具有体积模量和剪切模量的双重特性,从体积模量K和剪切模量μ的交会出发,引入弹性模量流体因子的概念,解决了单一弹性模量在储层预测时具有多解性的问题,提高了识别流体的能力。在实际应用中,利用叠前弹性参数反演得到弹性模量参数,结合岩石物理分析结果构建弹性模量流体因子,以此为基础即可实现流体识别和储层预测。胜利油田永新工区的应用结果表明,新构建的弹性模量流体因子能够有效地识别含油储层。
Elastic modulus can be used to characterize various lithology and fluid in reservoir.However,the results are always ambiguous by single elastic modulus.Since elastic modulus fluid factor(EMFF) owns the properties of both bulk modulus and shear modulus,based on the crossplot of bulk modulus against shear modulus,EMFF was introduced to reduce the ambiguity of reservoir prediction.In application,EMFF could be constructed from elastic modulus parameters which could be obtained from pre-stack elastic parameters inversion and petrophysical results.On the basis,fluid identification and reservoir prediction can be realized.The application result at Yongxin Block of Shengli Oilfield shows that the constructed EMFF could identify the oil reservoir efficiently.
出处
《石油物探》
EI
CSCD
北大核心
2012年第5期502-507,423,共6页
Geophysical Prospecting For Petroleum
基金
中央高校基本科研业务费专项资金(11CX04011A)资助
关键词
弹性模量流体因子
流体识别
储层预测
叠前地震反演
elastic modulus fluid factor
fluid identification
reservoir prediction
pre-stack seismic inversion
