The Influence of Casing-Sand Adhesion on Cementing Bond Strength

被引:9
|
作者
Zhao, Xiaofeng [1 ]
Guan, Zhichuan [1 ]
Xu, Minglei [2 ]
Shi, Yucai [1 ]
Liao, Hualin [1 ]
Sun, Jia [3 ]
机构
[1] China Univ Petr, Coll Petr Engn, Qingdao, Shandong, Peoples R China
[2] CNPC Bohai Drilling Engn Co Ltd, Res Inst Petr Engn, Tianjin, Peoples R China
[3] SINOPEC, Int Petr Serv Corp, Beijing, Peoples R China
来源
PLOS ONE | 2015年 / 10卷 / 06期
关键词
D O I
10.1371/journal.pone.0130892
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In the petroleum industry, one of the most serious problems encountered during cementing is the failure at the bonding interface. Many measures including casing-sand adhesion have been developed to improve cementing bond strength. However, due to the lack of detailed study of the technique, many questions remain. The primary goal of this study is to investigate the influence of casing-sand adhesion on cementing bond strength, and to optimize parameters. An orthogonal experiment and a supplementary experiment were conducted. The results indicated that casing-sand adhesion can improve the cementing bond strength. The priority orders of key factors are: sand grain size, sand coverage, adhesive curing temperature and adhesive curing time. The optimal parameters recommended for application are: 1.6mm similar to 1.9mm sand grain size, 60%similar to 70% sand coverage, 30 degrees C curing temperature and 60 hours curing time.
引用
收藏
页数:11
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