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扶余油田已经进入含水中后期,注采井网不适应地下的地质特点,尤其是“两夹四”、“两夹五”注采井网,平面矛盾较突出,注采井网的不适应,年产油量下降,但部分区块剩余油仍然很高。通过对井网存在问题及剩余油研究认识,提出了注采井网的重新调整——线性注采井网。通过钻少量新井,对老井的封、补、转及低效井综合治理,强化注采关系,提高油井多向受效方向,达到增加注入水波及体积,强化补充潜力层驱替能量,改善开发效果,提高采收率的目的。扶余油田经过井网的重新调整后,注采井数比由0.2~0.3提高到0.5,采收率由27.5%提高到33.5%。
Fuyu oilfield has entered the late hydrous, well injection network does not meet the geological characteristics of the underground, especially “two folders four ”, “two folders five ” injection well network, the plane more prominent conflicts, well injection network Of the unsuitable, annual oil production decline, but some of the remaining oil block is still high. Through the well network problems and remaining oil research understanding, put forward the re-adjustment of injection well pattern - linear injection well pattern. By drilling a small amount of new wells, comprehensive treatment of sealing, supplementing, transferring and inefficient wells in old wells can be strengthened to reinforce the relationship between injection and production and enhance the direction of multi-directional oil well stimulation so as to increase the injected water volume and volume, enhance the recharge potential of complementary potential reservoirs and improve Development effect, improve oil recovery purposes. Fuyu oil field after re-adjustment of the well pattern, injection well ratio increased from 0.2 to 0.3 to 0.5, recovery from 27.5% to 33.5%.