新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (6): 515-517.

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气藏开发指标预测的一种新方法

王彬, 汤承锋   

  1. 新疆石油管理局勘探开发研究院 克拉玛依 834000
  • 收稿日期:1998-09-02 发布日期:2020-09-19
  • 作者简介:王彬:工程师 油气田开发

A NEWMETHOD FOR FORECASTING DEVELOPMENT INDEX OF GAS RESERVOIR

Wang Bin, Tang Chengfeng   

  1. Research Institute of Exploration and Development, Xinjiang Petroleum Administration Bureau, Karamay 834000
  • Received:1998-09-02 Published:2020-09-19
  • About author:Wang Bin, Engineer, Oilfield Development

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摘要： 气井系统试井资料表明, 井底压力大于某一数值时, 指示曲线为直线;而井底压力低于该值时, 指示曲线为二次曲线。据此,结合气藏动态资料, 推出了一套预测气藏开发指标的方法。该方法适用于气藏采出程度大于5 %的中低渗透砂砾岩气藏, 并在克拉玛依油田五区南克75 井区上乌尔禾组气顶气藏得到了成功的应用。与数模预测方法比较, 本方法简便快捷, 结果可靠。

关键词: 气藏, 开发指标, 预测, 产量, 地层压力

Abstract: Systematic well test data of gas well showed that indicative curve is a straight line when bottomhole pressure exceeds a certain value, but a quadratic curve when bottomhole pressure is less than this value.Based on above-mentioned and performance data of gas reservoir, the method for forecasting development indexes of gas reservoir was derived.It can be applied in sandstone and conglomerate gas reservoir with midium-low permeability and recovery factor of more than 5%, which performed successfully in Upper Wuerhe gas-cap gas reservoir in area Well Ke 75, south District No.5 in Karamay oilfield.Compared with numerical simulation, it is simpler and has more reliable result.

Key words: Gas Reservoir, Development Index, Forecast, Production, Formation Pressure