新疆石油地质 ›› 2009, Vol. 30 ›› Issue (2): 238-240.

• 油藏工程 • 上一篇    下一篇

利用水平井提高凝析气藏原油采收率

昌伦杰, 肖香姣, 卞万江, 林娜   

  1. 中国石油 塔里木油田分公司 勘探开发研究院,新疆 库尔勒 841000
  • 收稿日期:2008-07-29 出版日期:2009-04-01 发布日期:2020-08-25
  • 作者简介:昌伦杰(1968-),男,湖北仙桃人,高级工程师,油气田开发, (Tel)0996-2172447.

Enhancing Oil Recovery of Condensate Gas Reservoir by Horizontal Wells

CHANG Lun-jie, XIAO Xiang-jiao, BIAN Wan-jiang, LIN Na   

  1. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
  • Received:2008-07-29 Online:2009-04-01 Published:2020-08-25

摘要: 采用水平井可以有效提高凝析气藏原油的采收率;利用水平井开发井网,先期开采底油、适时上返采气,可在不影响天然气采收率的前提下有效提高原油采收率;对英买 7 凝析气藏而言,将水平井部署在油气界面之上 1~2 m处、水平段长度 300 m、采油速度控制在 2.5%以下进行开发,既不影响天然气采收率,又可以提高原油采收率。

关键词: 凝析气藏, 底油, 水平井, 提高采收率

Abstract: This study shows that for condensate gas reservoir with bottom oil, utilizing horizontal well pattern, the oil recovery could be effectively enhanced by producing bottom oil followed by producing upper condensate gas without impacting the gas recovery. Taking Yingmai-7 condensate gas pool as an example, such an effectiveness could be reached by the process that the horizontal well is positioned at 1~2 m above gas-oil contact, with horizontal interval length of 300 m and the oil production rate less than 2.5%.

Key words: condensate gas pool, bottom oil, horizontal well, EOR

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