Research And Application Of Economic Evaluation In The Downhole Operation

Recently, the Daqing oil field puts forth some strategic as'Sustaining oil production,establishing a hundred-year oilfield'.To ensure the normal production of mechanical recovery well and the stability of oil production,operation-well numbers and costs are more and more during recent years. The proportion of the operation-well costs is big. In order to adapt the oil field precise management model of taking economic benefits as central, the view of obtaining satisfied economic benefits, the economic evaluation of operation-well before working, analyzing the economic benefits of every mechanical recovery well by proper model, to provide theoretical and technique supports, to implement oil field high benefit and sound and rapid development, have important practical significance and practical values.This paper first understand economic evaluation,operation process and technology with process features of Daqing oil operation.It uses method of linear programming, the principle of investment with production to analysis operation wells(pumping well screw pump well electric pump well workover well). Based on oil-gas price,economic parameter and operation cost to make sure the economic maximum production of oil operation. According to different kinds of operation wells establish the model with changing by crude oil prices,operation cost,working cost and so on. So it can division interval the benefit of check well pump in oilfield development. The comment of economic evaluation before checking pump with pumping,screw pump,electric pump well and different kinds. Make the sensitivity analysis, ensure sensitivity element and find the best time and tactics of working. At the same time, because of the limitation of the investment and operation plan, put the operation evaluation together. Guiding operation with the application of scientific method, reach the target maximum. Therefore, the economic evaluation in the downhole operation is the only way to make the sustaining oil production,establishing a hundred-year oilfield.