Advances in critical buckling load assessment for tubulars inside wellbores

Prediction of drill strings buckling load has been a challenge to the drilling industry. This work attempts to review most of the research performed in the previous years. First analytical, numerical and experimental researches on buckling in different wellbore geometries such as vertical, inclined, curved and general real world cases are studied. Then effects of torque, boundary conditions, friction, flow rate, and tool joints on the sinusoidal and helical critical buckling loads are reviewed. A bibliography of 118 references is provided.