石油学报 ›› 2009, Vol. 30 ›› Issue (1): 92-95.DOI: 10.7623/syxb200901019

• 油田开发 • 上一篇    下一篇

非对称鱼骨状分支井形态优化模型

韩国庆1, 毛凤英2, 吴晓东1, 安永生1   

  1. 1. 中国石油大学石油工程教育部重点实验室, 北京, 102249;
    2. 中国石油大学机电工程学院, 北京, 102249
  • 收稿日期:2008-01-31 修回日期:2008-04-02 出版日期:2008-11-25 发布日期:2010-05-21
  • 作者简介:韩国庆,男,1969年10月生,1991年毕业于石油大学(华东),现为中国石油大学(北京)石油天然气工程学院副教授,主要从事油气田开发方面的教学和科研工作,E-mail:hanguoqing@163.com
  • 基金资助:

    国家高技术研究发展计划(863)项目(2006AA09Z338)“特殊结构井开发油藏工程技术”部分成果

Optimization model for configuration of laterals in asymmetrical herringbone well

HAN Guoqing1, MAO Fengying2, WU Xiaodong1, AN Yongsheng1   

  1. 1. Key Laboratory for Petroleum Engineering of the Ministry of Education, China University of Petroleum, Beijing 102249, China;
    2. Faculty of Mechanical and Electronic Engineering, China University of Petroleum, Beijing 102249, China
  • Received:2008-01-31 Revised:2008-04-02 Online:2008-11-25 Published:2010-05-21

摘要:

利用半解析模型,分析了分支对称性和弯曲程度对鱼骨状分支井产能的影响,并分析了不同分支角度、分支数目和分支间距对鱼骨井产能的影响。结果表明,非对称鱼骨井主井筒对产能的贡献低于对称性鱼骨井,但其分支的贡献率高,而且其总产能高于对称性鱼骨井。分支的弯曲性会导致鱼骨井产能降低;随着分支角度的增大,鱼骨井产能提高,分支井筒末端1/3段的产能贡献率约占整个分支的50%;总分支长度相同时,具有异侧两分支的鱼骨井的产能最高。分支井筒应尽量靠近主井筒中部,且其间距存在一个最优值。

关键词: 鱼骨井, 复杂结构井, 半解析模型, 产能预测, 分支井形态, 参数优化

Abstract:

The effects of lateral symmetry and camber on the production of herringbone wells were analyzed by using the semi-analytical model. Different angles, number and spans for laterals had different effects on the production of herringbone wells. The contribution of the main wellbore in the asymmetrical herringbone well is smaller than that of the symmetrical herringbone well, but the total production of the asymmetrical herringbone well is bigger than that of the symmetrical herringbone well. The curved laterals will cause less production than the deviated laterals. The bigger lateral angle results in the higher production for herringbone wells. The contribution of 1/3 section to the lateral end accounts about 50% of the total lateral contribution. Under the same total length of laterals, the production of well with two laterals on different sides of the main wellbore is the highest. The laterals should be put as near as possible to the middle part of the main wellbore, there exists an optimum span for the laterals.

Key words: herringbone well, complex structure well, semi-analytical model, production forecasting, configuration of laterals, parameter optimization

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