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本文介绍用常规测井资料研制空气渗透率图版的一项科研实践。通过对研究地区大量岩心分析资料与对应测井数据的相关性研究,并考虑到油田的某些实际情况,确定了以自然伽玛相对值和声波时差为图版研制的基本参数.然后运用“正交筛选法”选取最佳方程,用最小二乘法确定方程中系数,进而构制了渗透率测井解释图版.图版的相关系数达0.9以上,相对误差小于35%,实用表明,效果令人满意。
This article describes a scientific practice of developing air permeability charts using conventional well logging data. Based on the correlation analysis between a large number of core analysis data and corresponding well logging data in the study area and considering some actual conditions in the oilfield, the basic parameters developed by using the relative value of natural gamma ray and the acoustic wave time difference as the plate are determined. Then, Cross-selection method "to select the best equation, using the least squares method to determine the coefficients in the equation, and then the interpretation of permeability log interpretation plate. Plate correlation coefficient of 0.9 or more, the relative error of less than 35%, practical shows satisfactory results .