基于双标准层趋势面的测井资料标准化方法

LOGGING DATA NORMALIZATION BASED ON DOUBLE KEY BED TREND SURFACE

常用的测井资料标准化方法对单标准层进行分析,最后仅得到单一的乘因子或者加因子,导致标准化后得到的测井资料井间可对比性不好,储层参数建模的精度难以提高。考虑测井系列的一般线性刻度方法及其误差传播,本文尝试选取两个稳定分布的标准层。通过对该两个标准层采取趋势面校正处理,得到符合一般线性刻度方法的测井资料的线性校正公式。该方法在ST地区对48口井进行了测井资料标准化处理,校正效果得到明显改善。

Commonly used logging data normalization is based on single key bed and gets single multiplicator or adding factor,which makes unfavorable uniformity of well-to-well logging data and low precision of reservoir parameter modeling.Considering general linear calibration of logs and error propagation,we try to choose two key beds of stable distribution in the paper.Through correction processing of the two key beds with trend surface,we get the formulae for logging data correction which corresponds with general linear calibration.The method was used to normalize the logging data of 48 wells in ST area.Correction was improved greatly.