石油钻采工艺2012，Vol.34Issue(1)：36-38,3.
考虑制造缺陷的套管抗挤强度计算新模型
A new calculation model for casing collapse resistance strength considering manufacturing imperfections
摘要
Abstract
The influence of manufacture technology and manufacturing imperfections on casing collapse resistance strength is not included in API 5C3 standard, so the actual casing collapse resistance strength cannot be predicted accurately by API 5C3 standard. API/ ISO working group revised the current API 5C3 standard and proposed the new collapse resistance strength model with manufacturing imperfections, which upgrades the casing strength calculation accuracy significantly. The study on the ISO collapse resistance new model disclosed that it could not be used to predict the collapse resistance strength for all casing thickness. On the base of ISO collapse resistance new model, a new formula for predicting the casing collapse resistance strength was presented. Numerical and experimental comparisons show that the predictive values calculated by the new formula were proper and reliable, and the calculation accuracy is higher than that of API 5C3 standard and ISO new model. It supplied a new reference in casing designs.关键词
套管/抗挤强度/制造缺陷/计算模型Key words
casing/ collapse resistance strength/ manufactured imperfections/ calculation model分类
能源科技引用本文复制引用
孙永兴,易炳刚,林元华,韩烈祥,施太和..考虑制造缺陷的套管抗挤强度计算新模型[J].石油钻采工艺,2012,34(1):36-38,3.基金项目
国家自然科学基金"酸性气井环空带压机理及诊断、预测研究"(编号:51074135) （编号:51074135）
四川省杰出青年学科带头人培养基金"石油膨胀管关键技术研究"(编号:06ZQ026-028). （编号:06ZQ026-028）
