Finite element analysis on Casing Failure Based on ADINA

Casing dislocation is one of the most serious forms for casing damage in petroleum engineering, especially casing failure in oil field will cause the great economic losses. Aimed at wellbore casing in oil field, dislocation mechanism and fracture theory of casing are introduced. Rupture model and Fracture model for casing failure crossing fault are established by ADINA. According to numerical results, the effects of various factors on casing failure are analyzed, such as the damage level of casing under different casing thickness and the fault angle. Crack propagation of broken casing has been investigated. It can provide theoretical basis for safety production and protection of oil field.