Technical improvement of treatment factory in the late stage of condensate field development.

Condensate field controls dew point of natural gas through dehydration and de-hydrocarbons by throttling refrigeration. In the middle and late period, due to the decreasing of gas field pressure year by year, the gas cannot meet the specification of hydrocarbon dew point of natural gas. The results of HYSYS simluaiton and process comparison show that the technology of "pressurization in front of throttle valve + dehydration and dehydrocarbons by propane refrigeration" can meet the requirements of dew point. [ABSTRACT FROM AUTHOR]