Research Of Cold Area Supercharging Gas Extraction Stations Risk Analysis And Control Technology

Based on the existing because of the cold causes security risk caused by the natural gas hydrate prevention technology is analyzed,identified are taken in association with the prevention and control of process equipment and operation.And the involved equipment,task each applicable safety analysis methods for analysis,and according to the principles of risk control measures,formulate corresponding measures,to ensure that the cold area supercharging set gas gathering station because the risks of gas hydrate under control,hazards can reduce to an acceptable level.At present the following achievement:1.Based on the formation mechanism of natural gas hydrate,the alpine region in the process of gas production,because of the low winter temperatures and the cause of damage made a concrete analysis,and made clear from the pressure,temperature,free water three aspects to take measures for prevention and treatment of natural gas hydrate(NGH).2.The use of ETA method of gas existing in natural gas hydrate prevention technology is analyzed,made clear to the existing reasons,prevention and control of process and do not take the existing process can lead to consequences.3.The existing gas hydrate prevention and control of processes involved in the equipment,operation,and its operation mechanism conducted a systematic and comprehensive description of the employees prevent hydrate solution provides training content knowledge training.4.The use of LEC method of wellhead natural gas heating furnace with downhole choke from safe Angle for comparison,to eliminate the wellhead natural gas heating furnace step-down warming process,so as to comprehensively promote the use of downhole choke provides the theoretical support.5.Through the comprehensive and system safety analysis,for safety management of gas hydrate prevention technology involved in the operation,which must be listed as dangerous operations category,perform operation license approval system provides a theoreticalreference.6.The use of FTA,job safety analysis,bow-tie,led and so on the many kinds of methods of natural gas hydrate prevention and control of process each link to do the safety analysis,to analysis the hazard factors to make the corresponding control measures.