胡尖山油田A21油藏加密调整效果及评价

Hujianshan oilfield A21 district reservoir encryption adjustment effect and evaluation

胡尖山油田A21区长2油藏经过近十五年的开发,已进入中高含水期,后期稳定生产难度逐年加大,因此对如何提高采收率、改善开发效果有待进一步优化。结合剩余油分布及储层发育特点,在原有的菱形反九点井网的基础上,通过井间排状加密、精细注采调整、排状注水等,提高了采油速度、降低了综合含水和自然递减,加密调整取得了良好的效果。

Chang 2 reservoir in Hujianshan oilfield has been developed for nearly fifteen years. It has entered a high water cut stage, and it is difficult to produce stable production.So it is undoutably indispensable to improve the development effect. So how to improve the recovery and improve development results to be further optimized. Combined with the remaining oil distribution and reservoir development characteristics. On the basis of the original anti-diamond nine wells. By crosswell encryption, fine adjustment of injection-production, arrayed injection and many more. Improve oil recovery rate, reduce water cut and natural decline, encryption adjustment achieved good results.