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某些测井曲线上出现的毛刺干扰,具有随机性质,周期短,并与地层性质无关。它们给计算机处理测井资料带来严重的影响,使计算的地质参数产生很大的误差。本文应用各种平滑滤波法来抑制或消除这些毛刺干扰,分别采用四种滑动平均值的计算公式,设计出相应的三点和五点平滑滤波程序,对毛刺干扰严重的声波测井曲线进行了实际数字处理。结果表明,应用五点的钟形函数或二次函数作平滑滤波,可取得较好的效果。
Glitch disturbances that occur on some well logs are random in nature, have short periods, and are not related to the nature of the formation. They have a serious impact on the computer processing of logging data, making the calculation of geological parameters have a great error. In this paper, a variety of smoothing filter method to suppress or eliminate these glitches interference, respectively, using four sliding average of the formula to design the corresponding three-point and five-point smoothing filter program, burr interference serious acoustic logging curve was Actual digital processing. The result shows that the five-point bell-shaped function or the quadratic function can be used for smoothing filtering to obtain good results.