测井曲线编辑方法研究及软件实现  

Research on logging curve editing method and software implementation

作　　者：董建萍 宁国兰 安朝辉 董国强 公维民 Dong jian ping;Ning guo lan;an zhao hui

机构地区：[1]中国石油东方地球物理公司大庆物探一公司

出　　处：《国外测井技术》2019年第4期9-12,2,共4页World Well Logging Technology

摘　　要：测井曲线是目前进行高精度层位标定和基于测井约束地震反演工作的基础资料,然而在实际工作中得到的测井资料由于是在井内测得,必然受到井眼环境等的影响而出现奇异值,这就需要对测井曲线进行编辑校正,滤除奇异值。另外,声波曲线经常不能很好反映地下岩性的变化规律,因此,有时需要参考其它测井信息进行曲线重构工作。本文介绍了测井曲线的编辑校正方法和声波曲线的重构方法,通过在实际生产工区的应用,可以看到编辑校正后的测井曲线制作的合成记录与井旁道更吻合,重构后的声波曲线突出了储层中砂、泥岩速度之间的差异,符合实际情况。Logging curve is the basic data for high-precision horizon calibration and logging-based seismic inversion,However, the logging data obtained in the actual work is measured in the well,Singular values appear to be affected by the wellbore environment, etc,This requires an edit correction of the log curve to filter out singular values.In addition, the acoustic curve often does not reflect well the variation of underground lithology,Therefore, it is sometimes necessary to refer to other logging information for curve reconstruction work.This paper introduces the editing correction method of logging curve and the reconstruction method of acoustic curve,Through the application in the actual production area, it can be seen that the synthetic record of the edited log curve is more consistent with the well-side seismic trace,The reconstructed acoustic curve highlights the difference between the velocity of sand and mudstone in the reservoir, which is in line with the actual situation.

关 键 词：测井曲线编辑校正 声波曲线重构 低通滤波 高通滤波 

分 类 号：P631.84[天文地球—地质矿产勘探]