摘要
反褶积是一种有意义的测井数据处理方法,灵活、正确地选取反褶积因子是获得良好效果的关键。通常的做法是根据测井理论和试验确定,如对声速测井资料进行反褶积时,选取了梯形响应函数和钟形响应函数。为了克服这些过于理想,而与实际结合不紧密的缺点,引入了同态滤波方法。在重点讨论了三种方法的理论依据和实现技术以后,对实际资料进行了对比分析,列出了多种图表,能一目了然地评价各种方法的效果。
Deconvolution for acoustic log is an effective method in log data proces-sing. Selecting appropriate deconvolution factor is the key to obtain goodresults. Usually, deconvolution factor is obtained theoretically andexperimentally for instance, ladder and bell response functions are adoptedtheoretically for deconvoluting acoustic velocity log. In order to preventfor too much ideolization, the homomorphism filter is introduced intopractice. This paper stresses on the theoretical fundamentals and practicaltechnique of the foregoing three methods determining deconvolution factor,afterwards presents and analyses plenty of charts and lists for contrast,shows the effectiveness of each method obviously.
