石油学报 ›› 2007, Vol. 28 ›› Issue (3): 112-115.DOI: 10.7623/syxb200703023

• 石油工程 • 上一篇    下一篇

煤层气多分支水平井钻井工艺研究

乔磊1, 申瑞臣1, 黄洪春1, 王开龙1, 鲜保安2, 鲍清英2   

  1. 1. 中国石油集团钻井工程技术研究院钻井完井所, 北京, 100097;
    2. 中国石油勘探开发研究院廊坊分院煤层气经理部, 河北廊坊, 065007
  • 收稿日期:2006-06-26 修回日期:2006-11-13 出版日期:2007-05-25 发布日期:2010-05-21
  • 作者简介:乔磊,男,1980年8月生,2005年获中国石油大学(北京)工学硕士学位,现为中国石油集团钻井工程技术研究院钻井完井所工程师,主要从事复杂结构井的钻井与完井工程研究工作.E-mail:qiaol69@petrochina.com.cn
  • 基金资助:
    中国石油天然气股份有限公司科技攻关项目(煤层气研字2005-11)"不同类型煤层气藏开发钻井完井技术研究"的部分研究成果.

Drilling technology of multi-branch horizontal well

Qiao Lei1, Shen Ruichen1, Huang Hongchun1, Wang Kailong1, Xian Bao'an2, Bao Qingying2   

  1. 1. CNPC Drilling Research Institute, Beijing 100097, China;
    2. Research Institute of Petroleum Exploration and development-Langfang, PetroChina, Langfang 065007, China
  • Received:2006-06-26 Revised:2006-11-13 Online:2007-05-25 Published:2010-05-21

摘要: 煤层气多分支水平井工艺主要包括充气欠平衡技术、井眼轨迹优化设计与控制技术、水平井与洞穴井对接技术、煤层造洞穴技术等.系统地论述了煤层气多分支水平井钻井工艺的技术要点以及井身结构和轨迹设计原则和方法,并且详细阐述了造洞穴、U型充气欠平衡和两井连通工艺的原理及程序.提出了煤层气多分支水平井的设计方法和理论,为未来煤层气的高效勘探开发提供了技术参考.

关键词: 煤层气开发, 多分支水平井, 钻井工艺, 欠平衡钻井技术, 井眼轨迹, 优化设计

Abstract: Multi-branch horizontal well is a new drilling technology developed in recent years.The new technology includes under-balance drilling technology,optimum design and control technique of well path,intersection technique between horizontal well and cave well,and making cave technique in coal layer.The technical specifications of the multi-branch well in coal-bed methane(CBM) field,the principles of making cave technique,under-balance drilling techniques and intersection technique were discussed.The design theory and method of well path and well structure were described.The mechanism of multi-branch well in coal-bed methane field was integrated to develop a set of theories and methods for design of multi-branch well and development of coal-bed methane.

Key words: coal bed gas development, multi branch horizontal well, drilling technology, under balance drilling technology, well path, optimum design

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