ISO 10400油套管强度新模型  

New Model for Tubing and Casing Strength: ISO 10400

作　　者：孙永兴[1] 林元华[1] 舒玉春[2] 张智[1] 施太和[1] 

机构地区：[1]西南石油大学石油管力学和环境行为重点实验室,四川成都610500 [2]中国石油西南油气田分公司重庆气矿,重庆401120

出　　处：《石油钻探技术》2008年第1期42-44,共3页Petroleum Drilling Techniques

基　　金：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);石油科技中青年创新基金“石油膨胀管用材料及螺纹联结机理研究”(编号:05E7044)资助

摘　　要：随着套管制造工艺的不断改进和制造水平的显著提高,现有的API 5C3模型已不能正确地预测套管的实际抗挤强度。通过对ISO 10400新标准的研究,给出了考虑微裂纹等各种缺陷的油套管抗挤新模型及两端堵口的抗内压韧性断裂模型。计算的精确度用部分数据与API作了对比,证明了抗挤新模型的可靠性和优越性。新模型对改善油套管设计和生产商改进油套管质量具有一定的参考价值。With the continuously improvement of the production and manufacture technology of tubing and casing, current API 5C3 model can not predict the actual casing strength. Through the study on new ISO 10400, a new collapse strength model for tubing and casing considering the flows such as micro-crack,etc. and a ductile rupture model of a capped end of tubing were created. Reliability and superiority of new model were validated by comparing with API. This new model provides important guidelines for tubing and casing design and for improvement in tubing and casing quality.

关 键 词：油层套管 抗压强度 韧性 断裂 数学模型 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]