减氢峰法获取碳氧比测井非弹谱的实施

Implementation of Obtaining Inelastic Spectrum by Subtracting Hydrogen Peak from C/O Log.

系统考察了碳氧比能谱测井非弹谱获取的 2种方法 ,并在减氢峰中使用函数拟合法计算氢峰面积。实例证明 ,减氢峰法获取非弹谱是较好的一种方法 ,它考虑了测井过程中可能出现的各种影响因素 ,在不增大统计涨落的前提下 ,可以得到纯净的非弹谱 。

Two methods for obtaining inelastic spectrum from C/O log are investigated systematically, and a method of function fitting to calculate hydrogen peak area is proposed with subtracting hydrogen peak herein. Examples show that subtracting hydrogen capture peak is a good way to obtain inelastic spectrum without increasing statistical uncertainties of the spectrum but accounting for any possible effects while logging. Hence, the interpretation precision of remaining oil satuation is improved with the above mentioned way.