APPARATUS AND METHOD FOR RECOVERING OF REMAINING OIL IN WASTE PIPE LINE AND METHOD FOR RECOVERING OF WASTE PIPE LINE

摘要

Disclosed are a system and a method for oil recovery for a waste pipeline and a waste pipeline recovery method. According to an embodiment of the present invention, there is provided an oil recovery system for a waste pipeline including an ROV that approaches the waste pipeline disposed in the sea, forms a predetermined section of the waste pipeline into a sealed closed section, and drills two or more pipe holes on the closed section; a heat supply unit that is provided in a vessel; a heat transfer unit that connects at least one of the pipe holes formed on the closed section and the heat supply unit to each other and allows a heating medium provided by the heat supply unit to be supplied to the waste pipeline; a storage tank that is provided in the vessel for oil storage; and an oil recovery unit that connects the one or more pipe holes formed on the closed section but not connected to the heat transfer unit and the storage tank to each other and recovers residue oil in the closed section liquefied by the heating medium supplied into the closed section to the storage tank.