西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (3): 116-120.

• 石油与天然气工程 • 上一篇    下一篇

修正衰减曲线法在低渗气藏动态分析中的应用

潘 伟   

  1. 中国石化国际石油勘探开发有限公司,北京 朝阳 100029
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-06-01 发布日期:2012-06-01

Correction for Attenuation Curve Method in Low Permeability GasReservoir Dynamic Analysis Application

Pan Wei   

  1. International Exploration and Production Corporation,SINOPEC,Chaoyang,Beijing 100029,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-06-01 Published:2012-06-01

摘要:
要:压力是气井和气藏生产动态分析的灵魂,很多动态分析方法都与压力有着直接的联系。然而,由于致密低渗
透气藏产量低、压力下降快、关井压力恢复缓慢等生产特征,以及生产方式的限制,在生产过程中很难获得气井或气藏
地层压力资料。压降法、产量不稳定分析法和产量递减曲线分析方法是气藏常用的气井生产动态分析方法,但由于地
层压力资料缺乏,压降法和产量不稳定分析法也都受到了很大的限制,在衰减递减曲线分析方法的基础上对其进行修
正,摆脱了压力资料的限制,通过和压降法对比分析,验证了修正衰减曲线分析方法在生产动态分析中的可靠性。

关键词: 关键词:致密低渗透, 生产动态, 衰减递减

Abstract:

Abstract:The pressure is the soul of gas reservoir/well production performance analysis.Many dynamic analysis method
has a direct link with pressure. However,it is very difficult to obtain the bottom hole flow pressure and formation pressure
data of tight and low permeability gas reservoir in the production process,due to the low yield,quick decrease in the formation
pressure,slowincreasesintheshut-inpressureandconstraintsofthemodeofproduction.Thepressuredropmethod,production
uncertaintyanalysisandproductiondeclinecurveanalysismethodaregenerallyusedtoproducegasreservoirdynamicanalysis,
but due to the lack of pressure data,the pressure drop method and production uncertainty analysis meet very big limitation.
Based on the modified attenuated decline curve analysis method,we got rid of the limitation of pressure data.It is also verified
to be reliable by comparisons with pressure drop method

Key words: Key words:tight and low permeability, production performance, attenuation decrement