于金珠,唐亚会
YU Jin-zhu,TANG Ya-hui(Exploration and Development Research Institute of Daqing Oilfield of Daqing Oilfield Company Ltd.

• 1:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

徐深气田为低孔-特低孔,低渗-特低渗致密储层,压裂试采动态按常规试井理论无法解释。为此,针对徐深气田复杂低渗的火山岩气藏以岩心为研究对象开展了实验研究,认识到岩样具有偏离达西定律的渗流特征,流体流动受启动压力梯度影响。分析了启动压力梯度与岩样空气渗透率、流度、束缚水饱和度的关系。在实验基础上建立了低速非达西渗流垂直裂缝井数学模型,编制了试井解释软件,并介绍了该软件在徐深气田试井解释中的应用实例,对复杂低渗气井的动态分析具有一定的指导作用。
This paper is about the experimental research on cores from volcanic gas reservoirs,such as the complicated low permeability Xushen gas field.According to the research it can be got that the filtering flow characteristics of the cores are not coincident with Darcy law,and the fluids flow is influenced by the actuating pressure.The relationship between the actuating pressure gradient and the cores air permeability,mobility,immobile water saturation and cores depth is analyzed.Based on the experiments,the mathematic model for vertically fractured wells under low velocity non-Darcy filtering flow is built,the well test interpretation software is compiled,and the example for the application of this software to Xushen gas field is introduced.The method can provide certain guide to the dynamic analysis for complicated low permeability gas wells.

关键词(KeyWords)： 火山岩;低渗储层;非达西流;启动压力梯度;试井
volcanics;low permeability formation;non-Darcy flow;actuating pressure gradient;well test

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 于金珠,唐亚会
YU Jin-zhu,TANG Ya-hui(Exploration and Development Research Institute of Daqing Oilfield of Daqing Oilfield Company Ltd.

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