“开平方法”与“对数法”在煤田地质测井电阻率曲线中的对比应用研究  

Comparative application study of‘open square method'and‘logarithmic method'in resistivity curve of coalfield geological logging

作　　者：于鹏程 Yu Pengcheng(Geological Exploration Institute,The First Exploration Bureau,China National Administration of Coal Geology,Handan 056004,China)

机构地区：[1]中国煤炭地质总局第一勘探局地质勘查院,河北邯郸056004

出　　处：《煤炭与化工》2022年第4期57-62,共6页Coal and Chemical Industry

摘　　要：在煤田地质测井工作中经常需要对测井曲线进行预处理。而在一些井田内,由于煤岩层电阻率曲线幅值差别较大,在成果图件输出中需要对电阻率测井曲线进行预处理,以使测井成果图件的输出简洁美观,各煤岩层、标志层易于识别。预处理方法多种多样,比较传统的处理方法是加入辅助曲线或对电阻率曲线进行对数运算,但在实际应用中存在一些不足,导致输出的测井图件既不简洁美观,也无法突出重点,给实际工作带来不便。利用“开平方法”对电阻率曲线进行处理,能够解决上述问题,具有一定的优越性。In coalfield geological logging work,it was often necessary to preprocess logging curves.In some well fields,due to the great difference of the coal strata resistivity curve amplitude,it was necessary to preprocess the resistivity logging curve in the result map output,so that the output of the logging result map was simple and beautiful,and the coal strata and marker layers were easy to identify.There were various preprocessing methods.The relatively traditional processing method was that the auxiliary curve was added or the resistivity curve was logarithmically calculated.However,there were some shortcomings in the practical application,resulting in the output of the logging map was neither simple and beautiful,nor could it highlight the key points,which brought inconvenience to the actual work.Using the'open square method'to process the resistivity curve could solve the problems above and had certain advantages.

关 键 词：电阻率曲线 预处理 对数法 开平方法 

分 类 号：TD163[矿业工程—矿山地质测量]