固井界面胶结性能影响因素  

Effects of interface cemented performance in cementing

作　　者：许明标[1,2] 文守成[3] 黄文新[3] 朱江林[3] 刘刚[3] 

机构地区：[1]中国地质大学(武汉)工程学院 [2]长江大学石油工程学院,湖北荆州434023 [3]长江大学石油工程学院

出　　处：《大庆石油学院学报》2007年第3期45-49,152,共5页Journal of Daqing Petroleum Institute

基　　金：中海石油(中国)有限公司项目(SCOJSLTJ-DSY-096)

摘　　要：针对固井中界面胶结性能的不同影响因素,采用自行研制开发的JHT-02高温高压固井质量评价仪,开展一系列模拟实验;物理模型按10∶1缩小,制作相应的缩小换能器.实验结果表明:当第Ⅰ,第Ⅱ界面存在流体环隙时,随环隙增大,套管波首波幅度增加,地层波逐渐减弱,甚至消失;工艺上可减少钻井液浸泡时间并清除泥饼,有效改善固井质量;在水泥浆顶替中,管柱运动、合理的上返速度及恰当测井时间的选择都能得出理想而正确的固井质量波谱图.Using a self-designed JHT-02 HTHP cement job quality evaluation instrument, a series of experimental stimulation experiments have been carried out on different effecting factors of interface cemented performance in cementing. Physical model is scaled down at 10∶1 ratio, and a relevant reduced transducer has been made. The experimental results indicate that when there is annular space betweenⅠ,Ⅱ interfaces, as the annular space increasing, head casing wave amplitude increase and the stratum wave taper gradually until to vanish; on the craft, reducing drilling fluid soak time and clearing filter cake can improve cement job quality effectively; on cement slurry displacing, choosing pipe string’s movement, reasonable up hole velocity and appropriate well logging time can obtain ideal and correct cement job quality optical spectrum chart.

关 键 词：固井质量 Ⅰ Ⅱ界面 水泥胶结 物理模拟 水泥胶结测井(CBL) 

分 类 号：TE256.7[石油与天然气工程—油气井工程]