储集层泥质含量普适性算法探讨

通过大庆新、老油田砂泥岩储层基础资料考察了以往常用泥质含量计算方法,分析各种方法的适应性.在此基础上提出了一种新型泥质含量算法,很大程度上突破了区域或储层特征制约,具有更好的稳定性和普适性.经4类储层16口井53层验证,平均相对误差24.86%,较所考查的3种典型方法提高了2个百分点以上.新方法不仅适用于老探区,尤其适用于有少量分析资料的新探区与开发区域.

On Universal Suitability of Reservoir Shale Content Al-gorithm

This paper investigates the previous algorithms about shale content generally used in basic information about sandy shale reservoir of new and old oil zones in Daqing Oilfieed. Here we propose a new algorithm about shale content after analyzing the suitability of various algorithms. This algorithm breaks through the restrictions of region or reservoir characteristics to a great extent. It has better stability and universal suitability. Using this method, 53 beds from 16 wells of 4 kinds of reservoirs are verified, and the average relative error is 24 86%, 2 percentage points higher than the three kinds of typical methods investigated. The new method can be applied to old exploration region, especially development region and new exploration region that has less analytical information.