摘要
本文基于在砂泥岩中用慢度一时间相关（STC）对比法，准确地提取声波全波列属性，利用纵横波速度并结合测井资料提供的密度曲线，经过相关计算得到泊松比、杨氏模量、体积压缩系数等岩石力学参数，结合常规测井来进行气层评价。由于储层的孔隙和流体性质对声波波速的影响存在差异，因此通过岩石力学参数的变化可对储层进行判别和特征分析。通过现场应用，表明岩石力学参数对于较厚的气层段分辨能力较好，证实该方法识别气层是非常有效的。
Based on slowness-time correlation(STC ) comparison in sand shale,the attribute of acoustic full wave is extracted accurately.Vertically and horizontally wave velocity and density curve provided by logging data are used to calculate the parameters such as Poisson ratio,Young's modulus and volume compressibility,etc.They are combined with conventional logging are used to evaluate gas zone.Because there is difference between the effect of acoustic speed on porosity and fluid property,changes of the rock mechanics parameters can be used to identify reservoirs and analyze characteristics.Through field application,it indicates that rock mechanics parameters have good resolution capacity to thick gas zones.The method is effective in gas zone identification.
出处
《国外测井技术》
2010年第4期40-41,4,共2页
World Well Logging Technology
关键词
全波列测井
气层
岩石力学参数
full wave logging
gas zone
rock mechanics parameter
