The Study On Encryption Adjustment Scheme Of SaPuGao Tertiary Reservor In Mid-east Block Of Sazhong Development Area

Development zone in the central east, east is located in the downtown area, oil field and municipal construction, the current facilities, production facilities, and other city has covers an area of 67%, 33% for the rest scattered space, with the development of the city, will be more and more urban construction, oil field drilling, building space also will be more and more small, the ground of the increasingly difficult situation.According to the secondary development of whole research, unified deployment limit well spacing pattern, and the block to tertiary oil recovery scheme of synchronization, oil drilling and built at the same time, once in place, avoid late drilling problems of shortage of land for building.Take "the overall research, unified deployment, subdividing series of strata and narrow spacing" refactoring three production network, by using the failure of network with the first potentialities of the infilled adjustment of water flooding, and strengthen the tertiary oil recovery water drive in front of the second development, slow down production decline rate, water flooding to keep water drive production scale, improve water flooding development effect, improve water drive recovery factor, and then turn to tertiary oil recovery, at the right time to improve oilfield technical ideas of the ultimate recovery of reservoir engineering plan, on the basis of fine reservoir description, for the central east, east high oil reservoir characteristics, Portugal, crude oil reserves, now well pattern does systemic research on the using condition and remaining oil potential, deployed injection-production well spacing 106 m five points area development pattern, design to the total number of Wells, 1113, 577 production, injection Wells, 536.951 951 new drilling, production, injection Wells, 422;Using 162 well.Interval was optimized combination, the preliminary design injection scheme, predicted the central east, east high, Portugal three kinds of reservoir development index and potential and the basis of early predicting the average single well fluid of nissan 33.6 t, 3.0 t nissan oil, composite water cut 91.0%, build capacity of 47.6×104 t.