双重介质油藏提高水驱波及体积探索与研究  

Exploration and Research on Increasing Sweep Volume of Water Flooding in Dual Media Reservoirs

作　　者：乔志学 潘成旭 王薇[1] 宫艳红[1] QIAO Zhixue;PAN Chengxu;WANG Wei;GONG Yanhong(No.3 Production Plant of Dagang Oilfield Company in CNPC)

机构地区：[1]大港油田分公司第三采油厂

出　　处：《石油石化节能》2021年第3期5-8,I0002,I0003,共6页Energy Conservation in Petroleum & PetroChemical Industry

摘　　要：双重介质油藏是存在天然裂缝的油藏,注水开发过程中注水见效差,易产生水窜现象,不注水则地层能量不足,油井低能低产。针对双重介质油藏的特点,以大港南部油田官三沙一断块为研究对象,逐步探索形成了“转注+周期注水+调堵+酸化”的综合治理模式,改变注水方向,提高水驱波及体积。该技术实施后,累计增油12034.5 t,累计节能创效2048.32万元。现场试验研究取得成功,对同类油藏具有一定的参考及指导意义。Dual medium reservoir is a reservoir with natural fractures.In the process of water injection development,water injection has poor effect and easy water channeling.Without water injection,the formation energy is insufficient and the oil well has low energy and low production.According to the characteristics of dual medium reservoir,we take guansansha-1 fault block in Dagang Southern Oilfield as the research object,and gradually explore and form a comprehensive treatment mode of"transfer injection periodic water injection plugging regulation acidification"to change the injection.After the implementation of this technology,the accumulative oil increase is 120344.5 t,and the accumulative energy saving and efficiency is 2004832 million yuan.The field test is successful,which has a certain reference and guiding significance for similar reservoirs.

关 键 词：双重介质油藏 综合治理模式 水驱波及体积 提高采收率 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]