METHOD AND SYSTEM FOR REMOVING DEPOSITS WITHIN A PIPE OR PIPELINE

摘要

A fluid flow processing plant for pig-free removal of wax and hydrate deposits in hydrocarbon production flowlines may include at least one cooling flowline. Further, the fluid flow processing plant my include cooling means arranged to cool the fluid in the at least one cooling flowline over a cooling section until the fluid reaches a temperature at or near the cooling flowline's surrounding temperature (Tsea) and at least one vehicle arranged on or near the outer circumference of the cooling flowline. Furthermore, each vehicle may include at least one sleeve configured to at least partly surround an outer circumference of the cooling flowline, deposit removing means being configured to remove deposits situated on an inner wall of the cooling flowline, and a propulsion unit configured to drive the vehicle bi-directionally on the cooling flowline.

主权项

1. A fluid flow processing plant for pig-free removal of wax and hydrate deposits in hydrocarbon production flowlines, the fluid flow processing plant comprising:
at least one cooling flowline; cooling means arranged to cool a fluid in the at least one cooling flowline over a cooling section until the fluid reaches a temperature at or near a surrounding temperature of the cooling flowline; and at least one vehicle arranged on or near an outer circumference of at least one of the at least one cooling flowline, wherein each vehicle comprises:
at least one sleeve configured to at least partly surround the outer circumference of the at least one of the at least one cooling flowlines;deposit removing means being configured to remove deposits situated on an inner wall of the at least one of the at least one cooling flowlines; anda propulsion unit configured to drive the vehicle bi-directionally on the at least one of the at least one cooling flowlines.