【摘要】 经过室内试验,数值模拟出了不同密度水泥套管井常见4种水泥胶结情况下,声波全波波形。通过波形对比分析了水泥密度对CBL/VDL评价固井质量的影响。分析结果表明,低密度水泥对一界面套管波幅度有较大影响,对二界面套管波幅度影响不大可以忽略,因此主要影响固井质量一界面的评价。针对此种情况,本文提出了合理的建议,在低密度固井质量评价中取得了较好的效果。更多还原

【Abstract】 By test in the room, studying the whole sound wave form under the common 4 kinds of cementing glued situation in Cased wells under the condition of different density cement with the numerical simulation. By comparing low density cementing wave form with high density cementing wave form. Analysing cement density how to influence evaluate cementing quality with CBL/VDL. Analysis results indicate that low density cement have heavy influence to one interface Cased wave range. But have little effect on two interface Cased wave range .So low density cementing only influence on evaluating two interface. In this situation we put forward reasonable suggestion in this paper .Have made better result in low density cementing evaluation.更多还原