Xinjiang Petroleum Geology ›› 2004, Vol. 25 ›› Issue (6): 650-652.

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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

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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