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Study on main technical strategy of oilfield development during the eleventh five-year plan in Daqing Oilfield

WANG Feng-lan1,2,SHI Cheng-fang1,2,TIAN Xiao-dong1,2,WU Xiao-hui2 (1.Resources Institute of China University of Geosciences,Beijing 100083,China;2.Exploration and Development Research Institute of Daqing Oilfield Company Ltd.,Daqing 163712,China)  
Daqing Oilfield has entered the stage of high water cut and high recovery degree during the eleventh five-year plan.At present,70% recoverable reserves are located in high water cut layers,and the major old oilfields are still dominant for oilfield development.Polymer flooding is still the main EOR technique,but production target has transferred from major reservoirs in the north to major reservoirs in the south and second-class reservoirs in the north.Peripheral oilfields are also the main direction to increase recoverable reserves,but 90% reserves are located in ultra-low abundance,ultra-low permeability and complex fault-block reservoirs.Starting from present development status of Daqing Oilfield,this paper analyzes main contradiction and problems of oilfield development during the eleventh five-year plan,studies main adjustment potential for oilfield development,and proposes major technical strategy for oilfield development adjustment so as to point out direction for oilfield development adjustment and scientific research,and also provides important foundation for development deployment during the eleventh five-year plan.
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