西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (3): 60-65.DOI: 10.3863/j.issn.1000-2634.2007.03.017

• 石油与天然气工程 • 上一篇    下一篇

薄互层油藏中阶梯水平井产能评价模型研究

黄世军1 程林松1 赵凤兰2 李春兰1   

  1. (1. 中国石油大学(北京)石油工程教育部重点实验室,北京 昌平 102249; 2. 中国石油大学(北京)提高采收率中心)
  • 收稿日期:2005-12-29 修回日期:1900-01-01 出版日期:2007-06-20 发布日期:2007-06-20
  • 通讯作者: 黄世军

THE PRODUCTIVITY EVALUATION MODEL OF THE STEPPED HORIZONTAL WELL IN THIN INTERBEDED RESERVOIRS

HUANG Shi-jun 1 CHENG Lin-song 1 ZHAO Feng-lan 2 et al.

  

  1. (CMOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Changping Beijing 102249, China)
  • Received:2005-12-29 Revised:1900-01-01 Online:2007-06-20 Published:2007-06-20
  • Contact: HUANG Shi-jun

摘要: 基于势叠加原理和微元线汇理论,建立了薄互层油藏中阶梯水平井生产段向井耦合流动模型,模型中考虑生产段油藏渗流与井筒变质量管流耦合作用和分支之间的干扰,并形成了考虑生产段耦合流动的阶梯水平井产能评价方法。采用所建立的耦合模型计算的双台阶水平井产能为64.26 m3/d,采用水平井解析公式计算的平均产量为76.27 m3/d。与该井60.19m3/d的实际日产油量对比,耦合模型的计算误差为6.76%,而采用水平井解析解公式所产生的计算误差则高达26.71%。

关键词: 阶梯水平井, 产能模型, 耦合, 压降分析

Abstract:

On the basis of the potential superposition, a coupling flow model of the pay zones in stepped hprizontal wells in thin interbeded reservoirs is estabished, and in the model, the interference between reservoir flowing through porous media of pay zones and pipe flowing coupling and branching in well bore is considered, the productivity evaluation method for stepped horizontal wells considering coupling flowing of pay zones is put forward. The dual stepped horizontal well productivity calculated with the established coupling model is 64.26 m3/d, comparing with 60.19 m3/d of the practical productivity of thewell, the calculation error of the coupling model is 6.76%, and the error calculated with horizontal well solution equation is as high as 26.71%.

Key words: stepped horizontal well, productivity model, coupling, pressure drop analysis

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