摘要
在碳氧比能谱测井过程中,受温度等因素的影响,使测量的谱数据发生漂移,造成测量的碳氧比值产生较大的误差。通过对碳氧比俘获谱数据进行研究,采用一阶导数处理方法,获得氢峰和铁峰后沿的特征峰,通过与标准刻度谱的对比,将实测谱数据进行校正,应用模型井数据对该方法进行了验证,相关系数达到了0.99,证明该校正方法有效,计算简单,可在测井过程中实时应用。
Because of influence of temperature and other factors, the measured spectral information drifts in the logging process, which leads to a large error in the measured C/O spectral logging data. By analyzing the capture spectra data of C/O spectral logging, we use the first derivative method to obtain the characteristic channels of hydrogen peak and iron peak falling edge. Comparing with the standard spectrum, we can correct the measured spectra data. Logging data in the model wells validates this method is better, and the correlation coefficient is 0. 99. This method is effective, simple and applicable in real-time lo^in~ t）rocess.
出处
《测井技术》
CAS
CSCD
北大核心
2013年第5期492-494,共3页
Well Logging Technology
关键词
碳氧比测井
能谱
漂移
寻峰
一阶导数
校正
C/O spectral logging, spectra, drift, peak search, first derivative, correction
