The Technology Research Of Gathering And Transportation System For Forest-edge Area In Huangling Oil Field

With the growing number of crude output and the exploitation scale expands increasingly in Changqing oilfield,blocks could be exploited becoming less,the conflict between production decline and blocks reduction has been increasingly conspicuous,so that production blocks are exploited to some areas of forest edge continuously,like Huangling oil field.Based on the situation of horizontal well deploy in Huangling oil field forest edge,aim specifically at the layout of horizontal-well site,combine ecological-damage reduction and construction investment decline,to get a layout optimized mostly of gathering and transportation system.Through the analysis of the mechnism of oil unheated gathering and transportation,and calculation of transportation radius of horizontal-well site,confirm well-site pressing,pipeline concatenation and principle of recycling associated gas,to achieve that elimination of associated gas vent and open-fire equipment in well sites through airtight gathering and transportation in Huangling oil field.Use software Pipephas simulated different working conditions of three main pipes,raise reasonable measures of transportation system safe operation and safeguard in winter.In addition,research risk assessment system of well site,station,and pipeline,evaluate the influence brought to forest edge by surface engineering construction,establish reasonable risk evaluation system.In conclude from field operation,forest edge oil field are fitted for the process of well-site pressing,pipeline concatenation,and unheated gathering and transportation can satisfy production demands,and electromagnetic and skin effect make production safe,achieve all-airtight gathering and transportation,the application effect is good.