四川盆地嘉陵江组测井曲线标准化研究——以川东北普光地区嘉陵江组为例

Research on the Standardization Logging Curve of Jialing River Group in Sichuan Basin——Taking Jialing Rive Group in Puguang Region of Northeast Sichuan Basin as an Example

以川东北普光地区为例,分析了本区嘉陵江组储层的纵横向展布和岩性特征,首次选取了嘉陵江组一段下部的灰岩段作为测井曲线标准化处理的标准层。以频率直方图法作为嘉陵江组测井曲线标准化处理的主要方法,利用经典的Wyllie公式评价测井曲线标准化的效果。该测井曲线标准化方法标准层选取依据科学,操作简单,评价方法合理,适用性强,对四川盆地其他区域的嘉陵江测井曲线的标准化有一定的借鉴作用。

Taking the Puguang area in northeast Sichuan province as an example,this paper analyzes the vertical and horizontal distribution and lithologic characteristics of the Jialing river reservoir in this area.For the first time,the limestone section at the lower part of the Jialing River group is selected as the standard layer for logging curve standardization.The frequency histogram method is used as the main method to standardize the logging curve of the Jialing River group.The classical Wyllie formula is used to evaluate the effectiveness of the logging curve standardization.