摘要
成像测井由于分辨率高、信息量大而得到广泛应用。但其采样密度相当高,在深度校正数据预处理中,当与常规测井数据进行分辨率匹配时带来了困难,通常的插值方法都不能很好地解决这一问题。采用快速且精度较高的阿克玛(Akima)光滑等距插值方法,对常规测井自然伽马(GR)曲线进行插值处理,在此基础上采用相关分析方法,确定成像测井带测GR曲线的深度偏移量。结果表明,该方法能够快速地进行测井数据分辨率匹配及有效地校正成像测井曲线的深度误差,为进一步提高成像测井图像解释的精度奠定了基础。
Imaging log has been used widely used due to its high resolution and abundant information capacity. Nevertheless, the difficulties may arise from the resolution matching in data processing with the conventional logging data, because of high sampling density of imaging log. Traditional interpolation method can not resolve this problem. Conventional logging GR （gamma ray） curve is interpolated by using the Akima interpolation method with high efficiency and precision, and then, the depth displacement of image logging GR curve is calculated by using correlation analysis. The method developed in the present study has the advantages of fast resolution matching and depth correction, and will better improve the image interpretation of image logging.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
2009年第1期62-65,共4页
Coal Geology & Exploration
关键词
成像测井
采样
分辨率匹配
阿克玛插值
深度校正
相关分析
imaging log
sampling
resolution matching
akima interpolation
depth correction
correlation Analysis
