Abstract: The gathering process of tight line treatment for crude without heating and/or pumping adopted in central oil and gas treating station located at Wenliu oilfield is introduced. This process, with gathering loss free, is that the oil or gas driven by well pressure is flowing continueous-ly within pipeline and pressure vessel without heating and pumping from wellhead to stabilizer, and from this point onwards, the thermal consumption and power consumption can be reduced, which either cuts down the treatment costs of oil or eliminates the problems existed in the opened process.