新疆石油地质 ›› 2004, Vol. 25 ›› Issue (6): 650-652.

• 油藏工程 • 上一篇    下一篇

不重复试井确定气井当前无阻流量的简易方法

苟三权   

  1. 西南石油学院油气藏地质及开发工程国家重点实验室,四川 南充 637001
  • 收稿日期:2004-06-07 修回日期:2004-08-09 发布日期:2021-01-14
  • 作者简介:苟三权(1962-),男,甘肃景泰人,高级工程师,在读博士研究生,油藏工程。联系电话:029-86596872

A Simple Method for Determination of Current Open Flow Potential in Gas Well without Repeating Well Testing

COU San-quan   

  1. State Key Laboratory of Reservoir Geology and Development Engineering, Southwest Petroleum Institute, Nanchong, Sichuan 637001, China
  • Received:2004-06-07 Revised:2004-08-09 Published:2021-01-14

摘要: 随着气井地层压力的下降,其无阻流量相应降低。在开发过程中,为了得到气井当前无阻流量,可在气井产能方程通式的基础.上,推导出地层压力与无阻流量的关系式。只要知晓气井在地层压力条件下的产能试井无阻流量、当前地层压力,以及各地层压力对应的天然气粘度和偏差系数,便可以由该公式计算当前无阻流量。实例计算表明,该方法简便易行,实用有效。

关键词: 气井, 无阻流量, 地层压力, 系统试井, 单点法

Abstract: Open flow potential will drop down with decline of formation pressure in a gas well. During process of development, the open flow po-tential is normally calculated by correlation of the formation pressure and the potential derived from a general equation of gas well productivity in order to get the current open flow potential of the gas well. The given parameters include the open flow potential of deliverability test, the cur-rent formation pressure, the natural gas viscosity and dev iation factor corresponding to formation pressures. The case calculation shows that this method is effective, simple and easy to use.

Key words: gas well, open flow potent ial, formation pressure, systematic well testing

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