摘要
本文综述常规声幅测井、CBL—VDL方法、CET(或PET)及与之类似的方法评价固井水泥胶结质量的物理依据。分析不同方法评价固井质量的评价指标、效果及其差异。在用CET及与之相类似的声波脉冲反射法进行固井质量检查时,提出一种将现有记录变换为定量评价指标的方法。讨论了声幅测井与CBL方法评价指标的关系。
The physics of conventional sonic amplitude log,CBL-VDL,CET(or PET) and the similar approach to the evaluation of cementation quality are reviewed. Evaluation parameters, efficiency and their differences are given. While employing reflected sonic wave like CET or the similar approach in the evaluation of cementation quality, logs are to be tranformed to quantitative evaluation parameters. Relationship between the evaluation parameters of sonic amplitude log and the evaluation parameters of CBL is discussed.
