| 介质变形引起地层孔渗变化条件下的试井分析 |
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| 引用本文： | 王延峰,刘曰武,贾振岐.介质变形引起地层孔渗变化条件下的试井分析[J].西安石油大学学报(自然科学版),2004,19(2):17-20. |
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| 作者姓名： | 王延峰 刘曰武 贾振岐 |
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| 作者单位： | 1. 大庆石油学院,石油工程系,黑龙江,大庆,163001
2. 中国科学院,力学研究所工程力学部,北京,100083 |
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| 摘 要： | 储层介质变形分为弹性变形、塑性变形和弹塑性变形 3种类型 .重点研究了介质塑性变形后地层孔隙度和渗透率变化条件下的不稳定渗流问题 .建立了孔隙度、渗透率指数变化规律的试井分析模型 ,通过有限元方法得到了井底压力随时间变化的双对数理论曲线 ,并对理论曲线的特征进行了分析 .通过实际井例分析 ,说明变孔渗试井模型具有较好的应用效果
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| 关 键 词： | 变形介质 不稳定渗流 试井分析 |
| 文章编号： | 1001-5361(2004)02-0017-04 |
| 修稿时间： | 2003年9月10日 |
Well test analysis under the variation of porosity and permeability caused by formation deformation |
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| WANG Yan-feng,LIU Yue-wu,JIA Zhen-qi.Well test analysis under the variation of porosity and permeability caused by formation deformation[J].Journal of Xian Shiyou University,2004,19(2):17-20. |
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| Authors: | WANG Yan-feng LIU Yue-wu JIA Zhen-qi |
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| Abstract: | The deformation of reservoir media can be divided into three types: elastic, plastic and elastic-plastic deformation. The porosity and the permeability of reservoir are changing as the reservoir media is deforming. The transient flow of the fluid in plastically deformed reservoir is studied in this paper. The well test model is established under the exponential change laws of the porosity and the permeability. Wellbore pressure-time curves are gained by finite element method and their characteristics are analyzed. The application of the well test model is demonstrated by a case, and the satisfied results are got. |
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| Keywords: | deformed media transient flow in porous media well test analysis |
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