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《Natural Gas Industry》 2013-01
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Pipeline scheduling and management: A case history from the Sichuan-Chongqing Pipeline Network

Zhou Jian1,Xu Hongchuan2,Li Qi1,Tian Yi1,Hu Mei1(1.Gas Transmission Management Department of Southwest Oil & Gasfield Company,PetroChina,Chengdu,Sichuan 610213,China;2.Production Operation Department of Southwest Oil & Gasfield Company,PetroChina,Chengdu,Sichuan 610051,China)  
The gas pipeline network in Sichuan and Chongqing areas,abbreviated as Sichuan-Chongqing Pipeline Network,covers an extremely wide area,which brings about great difficulty in coordination of gas production,transportation and marketing.Thus,a temporary solution of emergency gas supply by use of dynamic supervision and control of pipeline inventory will be of great significance to improve the gas supply guarantee capacity and emergency scheduling of the Sichuan-Chongqing Pipeline Network.In view of this,based on the investigation and analysis,the fundamental ideas and technical framework are presented for pipeline scheduling and inventory management.In conclusion,the essential of pipeline scheduling and inventory management is to accurately predict the gas volume of those important specially protected users and to determine the peak gas time,pressure control parameters,gas storage capacity of lines as well as its rational allocation.The objective condition for the successful application of pipeline inventory management relies on a good allocation and distribution program for ensuring the lines with enough gas storage capacity,meeting the needs of transportation and inventory control.With a case history from the district A during the temperature sudden drop times of Dec.14-16,2010,the detailed pipeline scheduling and inventory management is further explained.First,the gas consumption in the temperature-sudden-drop time was predicted by use of the response characteristic of a city's gas consumption to air temperature;the control pressure was determined by the simulation of the TGNET software;the gas volume allocation and distribution scheme was eventually determined to meet the requirement of pipeline inventory control.
【CateGory Index】: TE866
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