西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (2): 82-88.DOI: 10.3863/j.issn.1674-5086.2010.02.016

• 地质勘探 • 上一篇    下一篇

缝洞型油藏三重介质数值试井模型

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,北京 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:2010-04-20 发布日期:2010-04-20

A TRIPLE-CONTINUUM NUMERICAL WELL TESTING MODEL FOR A NATURALLY FRACTURED VUGGY RESERVOIR

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

  1. 1.Exploration & Production Research Institute,SINOPEC,Beijing 100083,China;2.Department of Petroleum Engineering,Colorado School of Mines,Golden CO.80401,USA)JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SCIENCE & TECHNOLOGY EDITION),VOL.32,NO.2,82-88,2010(ISSN 1674-5086,in Chinese
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-04-20 Published:2010-04-20

摘要:

基于多重介质渗流的概念模型和数学模型,建立了缝洞型油藏三重介质数值试井模型。该模型是一般三重介质模型的推广,可以很好地反映缝洞型油藏的各种非均质特征,能灵活处理油藏中各种断层和边界,且允许产量的任意变化。采用基于积分的有限差分方法求解,得到三重介质油藏试井响应曲线,分析了其渗流规律:三重介质不同的渗透性致使在半对数曲线上出现两个台阶、导数曲线上出现两个下凹。分别计算了层状非均质地层模型、直线断层模型、变产量模型、复合模型等几个复杂模型的试井响应。该数值试井模型可以进一步考虑缝洞型油藏中具体的裂缝和溶洞,进而推广至缝洞型油藏的两相流试井。

关键词: 缝洞型, 三重介质, 数值试井, 模型, 数值模拟

Abstract:

Triple media numerical well testing model for fracture-vug type reservoir is set up based on the conceptual and mathematical models of multiple media flowing through porous media.The model is the extended one from common triple media model,it can well reflect the heterogeneous characteristic of fracture-vug type reservoirs and can be used to deal with the influence of faults and the boundary in reservoirs and allows inconstant change of deliverability.Finite difference method based on integral is used to solve,well testing response curve of triple media reservoir is obtained,the law flowing through porous media is analyzed,the different permeable property of triple media makes two plats on semi-logarithm curve and two concave on derivative curve.The well testing response of laminated heterogeneous geological model,linear fault model,inconstant deliverability model and composite model is calculated respectively.The certain fractures and vugs of fracture-vug type reservoirs can be taken into consideration in the numerical well testing model,so as to be extended to dual-phase flow well testing for fracture-vug type reservoirs.

Key words: fracture- vug type, triple media, numerical well testing, model, numerical simulation

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