西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (6): 113-120.DOI: 10.3863/j.issn.1674-5086.2010.06.023

• 石油与天然气工程 • 上一篇    下一篇

缝洞型油藏三重介质数值试井模型影响因素

张冬丽1,李江龙1,吴玉树2

  

  1. 1.中国石化石油勘探开发研究院油藏所,北京 海淀 100083; 2.美国科罗拉多矿业学院石油工程系,Golden CO 80401 
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-12-20 发布日期:2010-12-20

INFLUENCING FACTORS OF THE NUMERICAL WELL TEST MODEL OF THE TRIPLE-CONTINUUM IN FRACTURED VUGGY RESERVOIR

ZHANG Dong-li1,LI Jiang-long1,WU Yu-shu2

  

  1. 1.SINOPEC Exploration & Production Research Institute,Haidian Beijing 100083,China;2.Department of Petroleum Engineering ,Colorado School of Mines,Golden CO 80401,USA
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20

摘要:

通过对缝洞型油藏三重介质数值试井模型进行数值求解,分析了各个模型参数对试井曲线的敏感性,确立了数值试井模型的参数体系。这些参数直接对应着油藏渗透性、缝洞大小、长度等物理量,更直观具体。不同的参数对曲线的影响方式不同:原始地层压力和裂缝渗透率影响压力恢复曲线的位置分布,表皮系数、井筒储集系数主要影响早期的曲线形状,基质渗透率等其他参数的影响则反映在曲线上的两个拐弯处,这些结论在曲线拟合求参时具有重要的参考价值。

关键词: 缝洞型, 三重介质, 数值试井, 敏感性, 影响因素

Abstract: The sensitivity of each parameter to the well testing curve is analyzed by solving triple-continuum numerical well testing model of fractured vuggy reservoir,and the parameter system of this numerical well testing model is determined.These parameters are corresponding to permeability,size and length of cave and fracture and so on.Different parameters have different influences on curve:initial formation pressure and fracture permeability have influence on the position of pressure build-up curve,skin factor;the well bore storage factor mainly has influence on the shape of early stage of pressure build-up curve,and other parameters have influence on the shape of the two turnings of the curve.All of these conclusions are very important for matching well testing curve.

Key words: fractured vuggy, triple-continuum, numerical well testing, sensitivity, influencing factors

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