石油学报 ›› 2002, Vol. 23 ›› Issue (5): 110-112.DOI: 10.7623/syxb200205023

• 石油工程 • 上一篇    

关井压力恢复和读取时机分析

李相方, 庄湘琦   

  1. 石油大学石油天然气工程学院, 北京昌平, 102200
  • 收稿日期:2002-05-09 出版日期:2002-09-25 发布日期:2010-05-21
  • 作者简介:李相方,男,1955年7月生,1981年毕业于石油大学,1992年获博士学位,现为石油大学(北京)教授、博士生导师,主要从事欠平衡钻井与油气井测试、天然气工程研究.
  • 基金资助:
    国家自然科学基金项目(No.50076029)资助.

Analysis on the pressure build-up and its recording time after shut-in

LI Xiang-fang, ZHUANG Xiang-qi   

  1. University of Petroleum, Beijing 102249, China
  • Received:2002-05-09 Online:2002-09-25 Published:2010-05-21

摘要: 论述了关井后井底压力恢复原理;分析并描述了气体在环空滑脱上升与立压、套压变化的关系.基于天然气藏渗流力学及达西定律,揭示了气侵溢流关井后立压和套压的恢复特征,给出了不同渗透率的油气藏关井压力读取时机及读取方法,为快速与准确获取地层压力提供了一条有效的途径.

关键词: 关井, 压力恢复, 关井井底压力, 关井地层压力, 读取方法

Abstract: The pressure build-up principle after shut-in is analyzed.The relationship between slippage and ascendance of gas in annulus as well as varies of stand pressure and case pressure in the well controlling process are described.On the basis of theory of gas reservoir engineering,the build-up characteristics of pressure after shut-in are discussed.A method for acquiring shut-in pressure of reservoirs with different permeabilities is proposed.

Key words: shut-in, pressure build-up, shut-in bottom-hole pressure, shut-in formation pressure, acquiring method

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