摘要
传统氧活化测井水流时间谱解释方法单一、精度不高且不能处理解释双峰重叠情况下的水流时间谱,无法满足海上油田注水监测的需求。在介绍氧活化测井原理的基础上,对传统的加权平均方法进行了剖析,重点研究了单峰情况下函数拟合方法及双峰重叠情况下双高斯函数拟合方法,形成了较系统的解释评价软件。该软件对3种解释评价方法进行了比较,单峰情况下的函数拟合方法解释精度高于加权平均方法,双高斯函数方法能处理双峰重叠情况下的水流峰,可解决目前氧活化测井技术在海上油田应用面临的解释难题。
Traditional water flow time spectrum interpretation method for oxygen activation log is simple, less accuracy, and does not satisfy offshore injection well dynamic monitoring under double peak overlap condition. On the basis of oxygen activation log principle this article analyzes the traditional weighted average interpretation method and emphasizes on the function-fitting interpretation method under the condition of single peak and double Gaussian functions interpretation method under the condition of double peak overlap, and finally develops the systematic interpretation software, which has 3 models. Comparison of the 3 models proves the accuracy of function-fitting interpretation method is higher than traditional weighted average interpretation method, while the double Gaussian function interpretation method can interpret the double peak overlay time spectrum, which resolved the difficult problem of oxygen activation log in the offshore oilfield.
出处
《测井技术》
CAS
CSCD
北大核心
2013年第4期368-373,共6页
Well Logging Technology
关键词
氧活化测井
双峰重叠
加权平均法
函数拟合法
双高斯函数
oxygen activation logging, double peak overlay, weighted average method, function- fitting method, double Gaussian function
