双层套管固井水泥胶结质量评价效果分析

Evaluation of cement bond quality in double casing cementing

双层套管每个界面的固井质量都影响着油气井的正常生产,而常规的固井解释仅评价第一、第二界面的水泥胶结质量,因此根据声幅—变密度测井原理并通过分析各界面不同胶结状况的波形特征,提出了双层套管固井质量评价方法,在实际应用中取得了良好效果。

The cement cementing quality interpretation of conventional evaluation only the first and second interfaces,soaccording to the acoustic amplitude variable density logging principle and by analyzing the waveform characteristics of the interfacein different bonding conditions,puts forward the evaluation method of double-layer casing cementing quality,and achieved goodresults in practical application.