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一、测井为什么要数字化数字测井包括两方面的内容:一是用数字测井仪在井场取得数字磁带记录;二是用电子计算机处理这些资料,把解释成果自动显示出来。数字磁带记录比过去的模拟曲线记录好在什么地方呢?(1)动态范围大。很小的信息或很强的信号均能如实录下;模拟曲线则受到纪录纸宽度的限制,记录范围不可能很大,否则就要超格。(2)精度高。在传输过程中很少失真。(3)可以同时录下组合测井仪自井下送上来的所有信息,信息的道数不受限制;模拟曲线则受照相记录仪的检流计
First, logging why digital logging includes two aspects: First, digital logging tools to obtain digital tape recording in the well site; the second is the use of electronic computer processing of these data, the interpretation of the results automatically displayed. Digital tape recording than in the past simulation curve recorded in what place? (1) dynamic range. Small information or strong signal can be accurately recorded; analog curve is limited by the width of the recording paper, the recording range can not be large, otherwise it is oversized. (2) high precision. Little distortion in the transmission process. (3) It is possible to record all the information sent from the downhole of the combination logging tool at the same time, the number of tracks of the information is not limited; the simulation curve is subject to the galvanometer of the photographic recorder