Then the improved model is used to calculate the final casing collapsestrength. This method combines FEA and strain test together and thus can get more …
With the improvement of the production and manufacture technology of casing, the actual collapsestrength of casing cannot be accurately calculated by present API 5C3 formula.
With finite element method, the collapsestrength of casing with ovality and eccentricity under unidirectional uniform and ellipse distributive force was calculated and analyzed.