| 周期性注入弱凝胶技术研究与应用 |
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| 引用本文： | 尹丽萍,徐赋海,马代鑫,隋春艳,姚寒梅,姚燕梅.周期性注入弱凝胶技术研究与应用[J].石油钻探技术,2011,39(4):95-98. |
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| 作者姓名： | 尹丽萍 徐赋海 马代鑫 隋春艳 姚寒梅 姚燕梅 |
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| 作者单位： | 中国石化胜利油田分公司东辛采油厂,山东东营 257094；2.中国石化胜利油田分公司河口采油厂，山东东营 257200 |
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| 摘 要： | 弱凝胶调驱是改善和提高注水波及效率的主要手段，但由于弱凝胶的强度较低，导致其有效期较短。为此，提出了周期性注入弱凝胶技术。采用岩心平面模型进行了非周期性注入弱凝胶调驱试验和周期性注入弱凝胶调驱试验，结果表明:非周期性注入弱凝胶调驱可以封堵高渗透层，提高注入压力，降低综合含水率，提高采收率；周期性注入弱凝胶调驱可以进一步改善弱凝胶的调驱效果，延长弱凝胶调驱的有效期，从而使采收率得到进一步提高。赵108断块采用周期性注入弱凝胶技术进行了两期调驱，注入弱凝胶期间和注入以后，注入压力上升，吸水剖面得到调整，油井含水下降，产油量上升。一期调驱有效期1.0 a，二期调驱有效期1.5 a，两期调驱共增油20 500 t。
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| 关 键 词： | 周期性注入 弱凝胶 剖面调整 提高采收率 实验室试验 赵108断块 |
| 收稿时间： | 2018-11-11 |
Research and Application of Periodic Injection of Weak Gel Technology |
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| Yin Liping,Xu Fuhai,Ma Daixin,Sui Chunyan,Yao Hanmei,Yao Yanmei.Research and Application of Periodic Injection of Weak Gel Technology[J].Petroleum Drilling Techniques,2011,39(4):95-98. |
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| Authors: | Yin Liping Xu Fuhai Ma Daixin Sui Chunyan Yao Hanmei Yao Yanmei |
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| Affiliation: | Yin Liping~1,Xu Fuhai~1,Ma Daixin~1,Sui Chunyan~1,Yao Hanmei~2,Yao Yanmei~2 (1.Dongxin Production Plant,Shengli Oil field Branch,Sinopec,Dongying,Shandong,257094,China,2.Hekou Production Plant,257200,China) |
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| Abstract: | Weak gel profile control is the main way to improve and enhance water flood sweep efficiency,but the low strength of weak gel will cause short period of validity.Therefore,periodic injection of weak gel was put forward.Using core plane model,the experiments of periodic and nonperiodic weak gel injection were conducted. The results showed that nonperiodic weak gel injection can block the high permeability zone,increase the injection pressure,lower the water cut,and enhance the recovery.Periodic injection can... |
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| Keywords: | cyclic injection weak gel profile control enhanced oil recovery laboratory testing Fault Block Zhao 108 |
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