| 泥浆滤液侵入对油藏岩石中油和水相对渗透率的影响 |
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| 引用本文： | 韩锦文,孙士孝,鄢捷年,王富华. 泥浆滤液侵入对油藏岩石中油和水相对渗透率的影响[J]. 中国石油大学学报(自然科学版), 1993, 0(5) |
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| 作者姓名： | 韩锦文 孙士孝 鄢捷年 王富华 |
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| 作者单位： | 石油大学开发系，石油大学开发系，石油大学开发系，石油大学开发系 山东 东营257062，山东 东营257062，山东 东营257062，山东 东营257062 |
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| 摘 要： | 用模拟油藏注水驱油的不稳定状态法测定了油藏砂岩岩样的润湿性对油、水相对渗透率以及驱油效率的影响.测定结果表明,试验所用的油基和水基泥浆滤液的侵入均对油相渗透率造成相当严重的损害.油基泥浆滤液比水基泥浆滤液更容易使亲水砂岩转变为亲油砂岩.润湿性改变使油、水相对渗透率关系曲线发生明显变化.与亲水岩石相比.亲油岩石的驱油效率也明显下降.
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| 关 键 词： | 钻井流体 润湿性 储层损害 相对渗透率 驱油效率 |
EFFECT OF MUD FILTRATE INVASION ON RELATIVE PERMEABILITY OF OIL/WATER IN RESERVOIR |
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| Han Jinwen Sun Shixiao Yan Jienian Wang Fuhua. EFFECT OF MUD FILTRATE INVASION ON RELATIVE PERMEABILITY OF OIL/WATER IN RESERVOIR[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1993, 0(5) |
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| Authors: | Han Jinwen Sun Shixiao Yan Jienian Wang Fuhua |
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| Abstract: | The influence of the wettability of core samples from reservoir on the relative permeability of oil/water and on the oil displacement efficiency was studied experimentally by means of the unstable state method. Water flooding in reservoir was simulated. The measurement results showed that the invasion of the filtrates of oil-base mud and water-base mud has a considerable effect on oil phase permeability. The filtrate of oil-base mud can transform water-wet sandstones into oil-wet sandstones more easily than that of water-base mud. Furthermore, the change of wettability of sandstone was expressed by the curve shape of the oil and water relative permeability. The oil displacement efficiency of oil-wet cores has a distinct decline compared with that of water-wet cores. |
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| Keywords: | Drilling fluid: Wettability: Formation damage: Relative permeability: Oil-displacement efficiency |
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