... This paper is organized as follows: first, descriptions and example outputs of 3D OD and wall thickness dimensional mapping of a casing joint are presented; second, details of 3D collapse FEA modeling including assumptions, inputs (geometric dimensions and material elastic-plastic properties...

... process uses both analytical and numerical methods to investigate the thermal effect. A finite element analysis (FEA) model simulates the coupled stress and temperature field around the borehole, which allows the width of the fracture to be derived at any point along the length. The Abaqus FEA model uses...

... spectrum frequency content analytical model FEA model drilling operation rotational velocity borehole amplitude backward whirl frequency vibration rms value assembly Introduction For several decades, the oil and gas industry has investigated drilling vibrations, in order to mitigate...

... OCTG. The test results demonstrated that post-expanded collapse resistance is significantly degraded by the increase in the diameter-to-thickness ratio. There was a large difference in the reduction ratio of the collapse between the conventional and trial material, and the FEA model is capable...

... the past several years, EPR has developed advanced techniques for nonlinear FEA to accurately and efficiently calculate the stresses and deformations in threaded connections. Concurrently, EPR's Tubular Goods Test Facility (TGTF) was constructed to assist in verification of FEA models and to conduct full...