Method to reduce the risk of failure of a system of riser drilling, drilling riser and method for installation of a state of internal spiral inside a drilling riser

摘要

Method to reduce the risk of failure of a system of riser drilling, drilling riser and method for installation of a state of internal spiral inside a drilling riser includes a drilling riser and a method to reduce the risk of failure of a riser system of PE Rfurau00e7u00e3o, comprising a drilling riser (100) arranged between a facility and a pit submarine.The drilling riser (100) having a hole (116) to transmit fluids between them, the method comprising the step of providing at least one state of issue of vortex (111) in that hole (116) of the drilling referidoriser (100) and transporting the fluid between the shaft subma Rino and installation.