Theoretical and experimental analyses of casing collapsing strength under non-uniform loading

• Published in: Journal of Central South University Vol. 21; no. 9; pp. 3470 - 3478
• Main Authors: Lin, Yuan-hua, Deng, Kuan-hai, Zeng, De-zhi, Zhu, Hong-jun, Zhu, Da-jiang, Qi, Xing, Huang, Yun
• Format: Journal Article
• Language: English
• Published: Heidelberg Central South University 01.09.2014
• Subjects: Engineering; Metallic Materials; mechanical model; non-uniform loading; collapse strength; collapse testing

Failure data from oilfield showed that casings which were designed according to API standards were deformed and collapsed in salt formations. The main reason for decrease in strength may be caused by non-uniform loading (NUL) that was not considered in traditional casing collapsing strength design o...