针对大港油田官69断块油藏高含水期水驱效果差的情况,在4个井组实施微生物驱油试验。在断块4 口注水井中注入相同用量的菌种(前缘段塞用胶结能力强的菌种DG002和N80,主体与后尾段塞用N80)后,2 个井组见到较好效果,产量递减放慢、开采状况基本稳定,或者产量增加,含水下降。受益井官69 8井日产从21.88t上升到23.3t,官69 21井含水从95.6%降至93.7%,减缓了区块产量递减。图4参10 Aiming at the poor waterflooding effect of Guan 69 block reservoir in Dagang Oilfield, microbial flooding test was carried out in 4 wells. In the fault block 4 injection wells injected the same amount of bacteria (leading edge slug with strong binding capacity of strains DG002 and N80, the main and the late tail plug with N80), the two well group to see better results , Production decline slowed down, the mining situation is basically stable, or increase production, water decreased. Well beneficiary well 69 8 wells increased from 21.88t to 23.3t, and the water cut of Well 6921 decreased from 95.6% to 93.7%, which slowed the decline of block production. Figure 4 Senate 10