Abstract:
The goal of the Kelameili oil and gas processing device is controlling hydrocarbon dew point and water dew point of the outputting natural gas. It refrigerates the condensate gas by injection of ethylene glycol, J-T valve throttling, and low temperature separation. It uses two stage flash + one stage stable+stripping processes to produce condensate oil. The present process has some problems, for example, the separation of alcohol and hydrocarbon is difficult, the loss of ethylene glycol regeneration tower is serious, the residual heat of the condensate oil is unreasonably used, and part of the liquid hydrocarbon discharges from the sewage pipeline. Some improvements are put forward including enhancing the temperature of alcohol and hydrocarbon separation, improving regeneration process of ethylene glycol, changing the heat exchange process of condensate oil, and recovering liquid hydrocarbon of rich gas compressing unit. These measures save fuel gas of 10.9×10
4 m
3, increase natural gas output of 13.2×10
4 m
3 and condensate oil yield of 145.2 t every year.