摘要
深度校正一直是测井数据预处理方面一个重要的研究课题。本文总结国内外专家对深度校正的研究,按照影响深度测量准确性的三种主要因素,将深度校正方法总结为三种:电缆的拉伸校正,速度校正,相对深度校正。电缆的拉伸校正是针对测井过程中电缆受自身重力、浮力、摩擦力、泥浆压力及温度变化等因素的影响做的校正。速度校正是针对仪器在井下遇卡及做非匀速运动做的校正。相对深度校正则是同一口井的多条测井曲线之间的深度对齐。
Depth correction is always an important research subject in logging data preprocess.The paper summarizes the research of depth correction by the experts at home and abroad.According to the key factors influencing accuracy of depth,the methods can be divided into three:stretch correction of wireline,velocity correction and relative depth.Stretch correction of wireline is correction of self-gravity,buoyancy,friction,mud pressure and temperature variation of the wireline in logging.Velocity correction is correction of sticking and non-uniform motion of the tool downhole.Relative depth correction is depth matching of multiple logs of the same well.
出处
《国外测井技术》
2011年第6期14-17,3,共4页
World Well Logging Technology
关键词
深度校正
拉伸校正
速度校正
测井
depth correction
stretch correction
velocity correction
well logging
