a two phase gas - liquid separation apparatus is provided that shapes the flow in a flow shaping line . shaping the two - phase flow allows centrifugal force to send the heavier , denser liquid to the outside wall of the flow shaping line and allows the lighter , less dense vapor or gas to occupy the inner wall of the flow shaping line . with the gas positioned on the inner wall of the flow shaping line , an exit port on the inner wall will allow for the majority , if not all , of the gas , along with a low amount of liquid , to be sent to a conventional separator . a high ratio of vapor / liquid at a flow rate much lower than the total flow rate within the flow shaping line is sent to the conventional separator . this allows for efficient separation of the vapor from the liquid with the use of a smaller conventional separator .