Comprehensive control of condensate gas reservoirs in T2a3, block AT1, Tahe Oilfield
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摘要: 砂岩凝析气藏见水后开发效果迅速变差,见水后治理成本高、难度大.塔河油田AT1区块T2a3凝析气藏存在井网分布不均导致局部采速过高、储层非均质性严重、开发初期采气强度偏大、前期认识存在局限性等问题,通过捕捉生产动态中的异常信号,认为气藏存在底油,并据此形成了以油基堵剂堵水等为代表的改善开发效果的针对性技术手段.通过利用隔夹层和平面非均质性进行剩余油气挖潜,取得了较好的治理效果.Abstract: In sandstone condensate gas reservoirs, production declined rapidly after water breakthrough and countermeasures were expensive and difficult. In the condensate gas reservoirs in T2a3 in the block AT1 of the Tahe Oilfield, wells were deployed unevenly, resulting in excessively high recovery speed regionally, strong re-servoir heterogeneity, strong gas recovery intensity in initial stage, and restricted potential prediction. The abnormal signals in production indicated bottom oil in gas reservoirs. Oil-based water-plugging agent was applied to improve recovery rate. Interlayers and plane heterogeneity were applied to tap residual oil.
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Key words:
- interlayer /
- heterogeneity /
- condensate gas reservoir /
- Tahe Oilfield
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[1] 马洪涛,蔡玥,付国民.塔河油田AT1井区中三叠统中油组湖底扇沉积特征研究[J].岩性油气藏,2010,22(3)53-58. [2] 刘蕊,盛海波,蔡玥.塔河油气田AT1区块凝析气藏三维地质建模研究[J].地球科学与环境学报,2011,33(2)168-171. [3] 吴文明,秦飞,李亮.塔河油田碎屑岩油藏活性混合油堵水体系探索实验[J].钻采工艺,2013,26(3)89-92. [4] 李传亮.水锥形状分析[J].新疆石油地质,2002(1):74-75. [5] 周代余,江同文,冯积累,等.底水油藏水平井水淹动态和水淹模式研究[J].石油学报,2004,25(6):73-77. [6] 贺丰果,李良川,岳湘安,等.水平井井身轨迹对底水油藏开采效果的影响[J].西南石油大学学报,2009,31(12):105-109. -
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