| 低渗透砂岩石油渗流的微观模拟实验研究 |
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| 引用本文： | 朱志强,曾溅辉,王建君.低渗透砂岩石油渗流的微观模拟实验研究[J].西南石油学院学报,2010,32(1). |
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| 作者姓名： | 朱志强 曾溅辉 王建君 |
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| 作者单位： | 朱志强,王建君,ZHU Zhi-qiang,WANG Jian-jun(中国石油勘探开发研究院海外一路业务发展研究部,北京,海淀,100038);曾溅辉,ZENG Jian-hui("油气资源与探测"国家重点实验室·中国石油大学,北京,昌平,102249) |
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| 摘 要： | 采用天然低渗透砂岩微观模型,通过与实际地质状况较为相似条件下的油驱水实验,模拟石油在低渗透砂岩孔隙内的渗流,分析和探讨了低渗透砂岩孔隙介质中石油的微观渗流机理.研究结果表明,石油在低渗透砂岩中渗流路径曲折复杂,运移渗流模式有稳定式、指进式和优势式3种;石油在低渗透砂岩中渗流存在启动压力梯度,启动压力梯度与砂岩孔隙度关系复杂,而与砂岩渗透率有很好的相关性;石油的渗流速度与驱替压力呈很好的相关性,石油以相同速度在不同渗透率级别的砂岩内渗流时所需要的驱替压力随砂岩渗透率的增大而降低.
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| 关 键 词： | 低渗透砂岩 运移 渗流模式 启动压力梯度 模拟实验 |
MICROSCOPIC EXPERIMENT ON OIL FLOWING THROUGH POROUS MEDIA IN LOW PERMEABILITY SANDSTONE |
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| ZHU Zhi-qiang,ZENG Jian-hui,WANG Jian-jun.MICROSCOPIC EXPERIMENT ON OIL FLOWING THROUGH POROUS MEDIA IN LOW PERMEABILITY SANDSTONE[J].Journal of Southwest Petroleum Institute,2010,32(1). |
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| Authors: | ZHU Zhi-qiang ZENG Jian-hui WANG Jian-jun |
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| Affiliation: | ZHU Zhi-qiang1,ZENG Jian-hui2,WANG Jian-jun1(1.Business Development Research Department of International Center in RIPED,CNPC,Haidian Beijing 100083,China,2.State Key Laboratory of Petroleum Resources , Exploration,Changping Beijing 102249,China) |
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| Abstract: | By using natural sandstone microscopic model and the water-drive-oil experiment under the condition of similarly real geologic situation,the crude oil flowing through porous media in low permeability sandstone is simulated.The flow course and characteristics of crude oil in pores and throats are observed.The micro-mechanism of oil flowing through porous media in low permeability sandstone is analyzed and discussed.The result shows that the flow pathway is complicated and the flow patterns appear three types... |
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| Keywords: | low permeability sandstone migration pattern flowing through porous media threshold pressure gradient simulation experiment |
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