固井水泥环对套管承载能力的影响规律

2002年 24卷 第4期
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INFLUENCING TENDENCIES OF CEMENT SHEATH ON CASING RETAINING CAPACITY
宋明 杨凤香 宋胜利 邹峰梅 闫相祯 杨秀娟
Song Ming Yang Fengxiang Song Shengli Zou Fengmei Yan Xiangzhen Yang Xiujuan
中原油田公司, 河南濮阳 457001 石油大学, 山东东营 257061
固井质量的好坏直接影响油水井的使用寿命。通过采用计算机辅助工程(CAE)方法,研究了水泥环缺损、水泥环不居中以及水泥环的性质对套管承载能力的影响规律,提出了固井质量差导致套管损坏的基本机理。
Cementing quality influences the oil well life directly, and by applying CAE (computer-aided engineering) technology, the influencing tendencies of cement sheath quality (damages, un-centralizing and characteristics of it) on casing retaining capacity are studied. The basic mechanism of casing damage due to poor cementing quality is also presented.
水泥环; 有效应力; 承载能力; 均匀外载;
cement sheath; effective stress; retaining capacity; even external load;
10.3969/j.issn.1000-7393.2002.04.003