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靖安油田三叠系油藏含水逐年上升,水驱储量动用低、产能损失严重等矛盾,急需通过化学调剖改善吸水剖面,恢复水淹油井产能,提高侧向油井水驱储量动用程度,提高最终采收率。通过对在用两种调剖体系进行室内评价,优化堵剂体系,段塞体系结构,完善注水井深部调剖体系的适应性,进一步提高调剖措施效果,改善区块整体开发效果。并在现场进行了试验推广,取得了良好的经济和开发效益,为今后治理三叠系裂缝性见水油藏及开发中后期含水上升油藏储备技术和积累经验。
The Triassic reservoir in Jing’an Oilfield is rising year by year. It is contradictory to low utilization of waterflooding reserves and serious loss of production capacity. It is urgent to improve the water absorption profile by chemical profile control, restore the productivity of flooded oil wells and improve the utilization of waterflooding reserves in lateral wells. The ultimate recovery rate. Through the indoor evaluation with two kinds of profile control system, optimizing the plugging system and slug architecture, and improving the adaptability of deep profile control system of injection well, the effect of profile control measures is further improved and the overall development effect of blocks is improved. And carried out experimental popularization on site. The project has achieved good economic and development benefits and has accumulated experience in the future management of fractured seeded reservoirs in the Triassic and development of reservoirs with rising water cut in the mid and late stages.