测井曲线元数学特性及沉积微相定量识别

随着油田开发的不断深入 ,测井资料在沉积微相研究中起到了更为重要的作用。研究了各种沉积微相在测井曲线上的表现特征 ,在此基础上引入了测井曲线元的概念 ;从沉积微相的角度 ,详细分析了描述测井曲线元形态特征的基本要素 ,并对其数学特性进行了刻画 ;建立了箱形、钟形等几种典型曲线形态定量化解释的数学模型 ,并开发了相应的软件系统。上述研究成果为沉积微相定量化研究提供了一种可借鉴的方法。

Mathematic characteristics of Well Logging Curve Unit and quantitative identification of sedimentary miscrofacies

With the progress of oilfield development, well logging data is becoming more and more important in studying sedimentary microfacies. The characteristics of various microfacies are identified on well log curves, and then a concept of Well Logging Curve Unit (WLCU) is introduced. In term of microfacies, the elements to illustrate shapes of WLCU are carefully analyzed, and their mathematic characteristics are described. In order to quantitatively interpret WLCU shapes, several typical mathematic models have been established, such as box_like and bell_like models, and their software systems are developed. These results may provide an available approach to the quantitative study of sedimentary microfacies.