西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (3): 46-49.DOI: 10.3863/j.issn.1000-2634.2000.03.013

• 石油工程 • 上一篇    下一篇

大庆油田三元复合驱合理井网井距研究

李华斌1 赵长久2 孟繁儒2

  

  1. (1.西南石油学院,四川 南充 637001; 2.大庆油田有限责任公司)
  • 收稿日期:2000-04-07 修回日期:1900-01-01 出版日期:2000-08-20 发布日期:2000-08-20
  • 通讯作者: 李华斌

OPTIMIZATION OF WELL PATTERN AND SPACE FOR DAQING ASP FLOODING

LI Hua bin1 ZHAO Chang-jiu2 MENG Fan-ru2 

  

  1. (Southwest Petroleum Inst.)
  • Received:2000-04-07 Revised:1900-01-01 Online:2000-08-20 Published:2000-08-20
  • Contact: LI Hua-bin

摘要: 通过大庆油田不同井距的中区西部、杏五区两个三元复合驱先导性矿场试验和北一区断西、杏二区两个扩大的三元复合驱矿场试验的动态反映特征,在大庆油田实际油层地质条件下,模拟了计算的直列式、斜列式、四点法、五点法、七点法、九点法和反九点法7种井网布井方式对三元复合驱油效果影响的结果,研究了大庆油田三元复合驱的最佳布井方式和井距。结果表明,五点法面积井网的驱油效果最高,七点法面积井网的最差;在大庆油田三元复合驱注入速度为0.1~0.2 PV(孔隙体积倍数)条件下,对于主力油层,以注入压力不超过油层破裂压力为限,注采井距不宜大于300 m。大庆油田经过一次加密调整和二次加密后,大面积构成了注采井距为200~250 m的五点法面积井网,为大庆油田大规模开展三元复合驱提供了良好的应用条件。

关键词: 复合驱动, 数值模拟, 动态, 特征, 分析, 井距

Abstract: In this paper, the influences of well pattern and space on ASP flooding in Daqing oilfield were investigated by using nu-merical simulator GCOM. Well patterns, including 4-spot, 5-spot, 7-spot, 9-spot, inverted 9-spot, straight row and inclination row in the simulation, and well spaces ranging from
200 to 300m were studied in this simulation. The numerical simulation results indicated that the 5-spot is the most favor-able well pattern for ASP flooding in Daqing oilfield, while the 7-spot is the worst well pattern. The well space between in-jector and producer should be smaller than that of 300m at such
simulation conditions as injection volume ranging from 0.1 to 0.3 PV and injection pressure less than 13.5 MPa. As a result, in-fill drilling will give good future for industrial application of ASP flooding in Daqing oilfield.

Key words: combination drive, numerical simulation, performance analysis, well pattern and space

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