西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (4): 89-91.DOI: 10.3863/j.issn.1000-2634.2007.04.22

• 石油与天然气工程 • 上一篇    下一篇

存在启动压力梯度时的合理注采井距确定

唐伏平1 唐海2 余贝贝2 曾建3 吕栋梁2   

  1. 1.新疆油田分公司,新疆 克拉玛依 834000; 2.西南石油大学,四川 成都 610500;3.中海石油(中国)有限公司天津分公司技术部,天津 塘沽 300452
  • 收稿日期:2006-05-31 修回日期:1900-01-01 出版日期:2007-08-20 发布日期:2007-08-20
  • 通讯作者: 唐伏平

THE DETERMINATION OF THE INJECTIONPRODUCTION WELL SPACING WITH THE CONSIDERATION OF THE STARTUP PRESSURE GRADIENT

TANG Fu-ping1 TANG Hai2 YU Bei-bei2 et al   

  1. Xinjiang Oil Field Branch, Kalamay Xinjiang 834000 ,China
  • Received:2006-05-31 Revised:1900-01-01 Online:2007-08-20 Published:2007-08-20
  • Contact: TANG Fu-ping

摘要: 由于流体在低渗透油藏中渗流存在启动压力梯度,在确定低渗透油藏合理注采井距时如何考虑启动压力梯度的影响,是提高低渗透油藏开发效果的主要研究内容之一。根据等产量一源一汇渗流理论,获得了注采单元主流线中点处的最大压力梯度计算式,结合启动压力梯度与渗透率的关系建立了低渗透油藏合理注采井距的确定方法,得到不同渗透率和注采压差下合理注采井距理论图版。实例应用结果表明,所述方法简单实用,分析结果与油田实际情况基本一致。

关键词: 启动压力梯度, 注采井距, 低渗透油藏, 开发效果

Abstract:

It is one of the main research contents for the effective development of the low permeability reservoir how to determine the reasonable injectionproduction well spacing owing to the startup pressure gradient in the process of the flowing through porous media, According to the theory of flowing through porous media for the productionone sourceone convergence point, the calculation formula for the maximum startup pressure gradient in the midpoint of the channel line in the flooding unit is acquied. Integrating the relation between the startup pressure gradient and the permeability, the determination method of the reasonable injectionproduction well spacing for the low permeability reservoir is established and the theoretical plate for the reasonable injectionproduction well spacing on the condition of different permeability and injectionproduction pressure drawdown is obtained. The case application reveals that this method is simple and practical, the analytical results are basically identical with the actual situation in oil field.

Key words: the startup pressure gradient, injectionproduction well spacing, low permeability reservoir, development effect

中图分类号: