1 工程概况胜利油田广南水库始建于1985年,1986年3月建成并开始蓄水发挥效益。水库设计库容1.14亿m~3,水库水源为高含沙河流——黄河.经1986～1995年的运用,沉沙池内已淤积泥沙640万m~3,且不均匀,已影响水库的正常运用。为保证油田供水需要,必须对水库沉沙池进行改造、扩容,现就改、扩建项目的经济效益进行分析评价,以确定工程项目在经济上是否可行。 1 Project Overview Shengli Oilfield Guangnan Reservoir was founded in 1985, completed in March 1986 and began to impound water to play an effective. Reservoir design capacity of 114 million m ~ 3, the reservoir water for the high sandy river - the Yellow River. 1986 ~ 1995 years of use, settling pond has silted sediment 6.4 million m3, and uneven, has affected the normal reservoir use. In order to ensure the water supply needs of the oilfield, the sedimentation basin of the reservoir must be reconstructed and expanded, and the economic benefits of the renovation and expansion projects are analyzed and evaluated to determine whether the project is economically viable.