Study Of The Development Adjustment Technology Policy Of Chang6Reservoir In Wuqi Oilfield XX Area

Wuqi oilfield XX area Chang6reservoir is located in the Midwest of Shanbei Slopewhich is the main production layer of the oil field. The main reservoir of Chang61is deltafront sand body. After nearly10years of development, the study area facing many problemsand challenges.The author divided the study area to seven regions. By a large number of production data,the auther analysed reservoir characteristics and water flooding situation and the main factorsaffecting the development efficiency. Then make the development of technology policyanalysis and comparison. Finally, draw for the reasonable development adjustment technologypolicy, to improve the development effect.At present the study area development effect is good. The reservoir pressure displacementsystem has been established. Four regions have poor water injection effect. The Western, theSouth Central and the Horizontal wells network region have good adaptability. The Easternformation pressure is low. Uesing the empirical formula to calculated the reasonable waterinjection rate. Through the analysis we know that the water injection intensity is well exceptthe Western and the Chang612position in Horizontal wells network region.Lifting the plunger to make flow pressure higher. Aiming at the low recovery degree units,recommends the implementation of enhanced water injection. Take control of water injectionon the regions which had entered into middle and high water-cut stage. Oil well measures:completed reservoir reconstruction in20wells. So far, the oil production increased1572.04t.Water well measures: adjusted the water absorption, stimulation of injection well selectively,pluged the water temporarily and so on. Made recommendations to administer26water wells.Added7oil wells in low degree of reserve recovery region.