Research On Fracturing Yield Factor And Application Limit Of Chaoyanggou Field

Chaoyanggou oilfield put into productionin in fracturing way, fracturing water breakthrough and low recovery degree. And along with the oilfield development, the number of high content wells increases year by year, for these wells, refracturing and water shutoff technology in the same well and layer are not good for remaining oil development of high aquifer, and measures effect is poor, Therefore, resulting in high content wells shut-in. The close of these wells not only affected the restructuring of water flooding regime, but also caused a large number of idle assets. In order to excavate remaining oil further, Chaoyanggou oilfield conducted a pilot tracey by high-water oilfield blocking voltage-controlled water, and achieved good results, which explored technical means for the peripheral fractured low permeability oilfield remaining oil with high water content..If extensive construction in the peripheral low-permeability oil fields of Daqing, there are a range of issues, such as the selection criteria of well and layer, construction technology optimization and the adaptability of other low permeability oil fields. All of these problems must be solved by industrial field tests. If the above-mentioned problems can be solved through experiments, it will provide effective technical support for low-permeability oilfield and it will be significant for improving the producing extent of peripheral "three low" reservoir and ensure the oilfield stable yield 40 million tons. All of this has the long-term economic and social benefits, the vital significance.This article based on the numerical simulation model, and analyzed the remaining oil distribution, according to orthogonal design method and grey correlation method, we analyzed the sensitivity of increasing oil. Based on profit and loss balance principle, we solved the economic limits of the fracturing and drew up a software. The results obtained is match the actual situation.