综合地球物理信息的孔隙率预测方法及应用效果分析

Methods of comprehensive geophysical data for prediction of porosity and analysis of its application.

王永刚 ,乐友喜 .综合地球物理信息的孔隙率预测方法及应用效果分析 .石油地球物理勘探 ,2 0 0 1,36 (6 ) :70 7～ 715 在油藏综合研究中 ,储层孔隙率参数的准确求取是一项关键性技术。本文在分析总结已有的储层参数预测方法的基础上 ,综合利用地质、地球物理信息 ,通过数学统计等方法 ,采用逐步线性回归、相关滤波、神经网络、协克里金、非参数回归等预测孔隙率参数平面分布。通过实例分析比较了各种方法的地质效果 ,归纳总结出上述方法的特点及其应用条件。

Accurate determination of the porosity distribution parameters in reservoir is a key technique in the comprehensive research of reservoir. On the basis of analyzing and summarizing existing methods for prediction of reservoir parameters, the paper comprehensively utilizes geologic and geophysical information and uses the methods for planar distribution prediction of porosity parameters such as gradual linear regression, correlation filtering, neural network, co-Kriging and non-parameter regression through mathematical statistical methods. Analyzing and comparing geologic effects of varied methods by real cases have been done and characters of above-mentioned methods and its application conditions have been summarized.