非线性参数分析技术在于奇地区白垩系的应用  

The Application of Nonlinear Parameters Analysis Technology to Cretaceous Formation in Yuqi Area

作　　者：张荣[1] 杜伟维[1] 

机构地区：[1]中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《工程地球物理学报》2014年第6期888-892,共5页Chinese Journal of Engineering Geophysics

摘　　要：通过关联维、李指数、突变指数三种非线性参数和常规地震波场参数(以均方根振幅RMS为例)对地质模型中砂体组合变化的响应分析,并结合非线性参数值与实钻井砂体组合变化的研究表明,非线性参数对砂体组合的变化具有更好的分辨能力。应用该技术在于奇地区白垩系进行非构造圈闭发育区预测,共落实非构造圈闭线索10个。Through the three kinds of nonlinear parameters which are association correlation dimension, Lyapunov exponents and parameter of catastrophe, and conventional seismic wave parameters taking RMS root mean square as an example, response analysis of sand composition change in the geological model is studied. Combining the nonlinear parameter value and sand composition changes of real drilling, this research shows that nonlinear pa- rameters have a better resolution for the change of sand composition. This technology is applied to the cretaceous in Yuqi area to predict non--structural trap development zone, a total of 10 non--structural trap cues are found.

关 键 词：非线性参数 砂体组合变化 圈闭预测 于奇地区 

分 类 号：P631.4[天文地球—地质矿产勘探]