Mechanical Simulation Experiment of Coiled Tubing in Wells

Coiled tubing operating systems have complex underground loading, by related research, we have got the solution about actual depth which the coiled tubing goes into well, and we also have got the solution about the buckling and lock-up of coiled tubing. The reasonable overall experiment scheme is put forward according to the related functional requirements, the appropriate geometric parameters and dynamic parameters of the experimental system is determined, the function module analysis and structural design of the test bench is carried on. The experimental phenomena about buckling and helical buckling lock-up are analyzed, and the conditions of helical buckling lock-up are put forward. This experiment has provided the basis for the analysis of mechanical behavior of coiled tubing in wells.