西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (4): 95-98.DOI: 10.3863/j.issn.1674-5086.2009.04.020

• 石油与天然气工程 • 上一篇    下一篇

单斜稠油油藏蒸汽驱流体界面稳定性分析

王厉强1王洪辉2 涂建华3 夏丽4 陈杰5   

  1. 1.中国石油大学博士后流动站,北京昌平102249;2.成都理工大学“油气藏地质及开发工程”国家重点实验室,四川成都610059;3.中国石油大港油田滩海开发公司,天津大港300280;4.中国石油大港油田第六采油厂,河北黄骅061100;5.中国石油股份公司吐哈油田分公司勘探开发研究院,新疆哈密839009
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-20 发布日期:2009-08-20

ANALYSIS ON FLUID INTERFACE STABILITY OF STEAM FLOODING IN MONOCLINAL HEAVY OIL RESERVOIR

WANG Li- qiang1WANG Hong- hui2 TU Jian-hua3 XIA Li4 CHEN Jie5   

  1. 1.China University of Petroleum Post-Doctoral Mobile Station,Changping Beijing 102249,China;2.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,ChengDu University Of Technology,Chengdu Sichuan 610059,China;3.Offshore Exploration and Development Corporation of Dagang Oilfield,PetroChina,Dagang Tianjin 300280,China;4.The Sixth Oil Production Factory,Dagang Oilfield Branch PetrolChina,Huanghua Hebei 061100,China;5.Exploration and Development Research Institution of Tuha Oilfield,PetrolChina,Hami Xinjiang 839009,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

摘要: 为解决蒸汽驱汽窜机理认识不深入的问题,从蒸汽驱地质物理模式出发,将制约蒸汽驱替稳定性的问题转化为汽液及液液界面稳定性问题。针对宾汉型稠油油藏,以考虑启动压力梯度的广义达西渗流理论为出发点,确定了单斜油层两类界面稳定临界压降和临界流速条件。对影响界面稳定性的诸因素进行敏感性研究。结果表明流度比、重力、热凝析带及聚集带流体启动压力梯度、井距对界面稳定性有显著影响,且对两类界面的影响程度是不同的。为矿场防止及改善汽窜已有的成功实践经验提供了理论依据。

关键词: 稠油, 蒸汽驱, 汽窜, 流体界面, 稳定性, 启动压力梯度

Abstract: For solving the problem that steam channeling mechanism is not understanded well,starting from geology and physics model of steam flooding,issue of steam flooding stability is converted to one of gas-liquid and liquid-liquid interface stability.Based on general Darcy′s law flowing through porous media which includes the threshold pressure gradient effect,stable critical pressure drop and critical flowing velocity two kinds of interfaces are determined in monoclinal heavy oil reservoir.Furthermore,sensitive research on some factors affecting interface stability is carried out.The results show that these factors,namely,mobility ratio,gravity,threshold pressure gradient in heat condensate zone and accumulation zone,producer-injector spacing are significant effect on two kinds of interface stability.Especially,the kind of effect is different to two kinds of interfaces.This research can provide successful empiric on preventing and improving steam channeling with theory base.

Key words: heavy oil, steam flooding, steam channeling, fluid interface, stability, threshold pressure gradient

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