Tubing
Tubing is broadly referred to as the conduit that is run inside the casing or open hole in a wellbore. Tubing is used as a flow path for the formation fluid to flow from the reservoir to the surface or for pumping fluid downhole. The term is mainly used for the tubulars that are used for well testing or well completion after drilling a well. Tubing should be able to withstand burst, collapse, tensile, compressive, and tri-axial loads during all operations. They should also have the material properties to handle the corrosivity of fluid in a wellbore or formation. Tubing is designed to meet all stresses and conditions in routine well operations and also to specific requirements of special operations.