| 泡沫在井壁的物理化学作用 |
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| 引用本文： | 吴飞,朱宗培. 泡沫在井壁的物理化学作用[J]. 钻井液与完井液, 1995, 0(1) |
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| 作者姓名： | 吴飞 朱宗培 |
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| 摘 要： | 泡沫存在着向井壁吸附、聚集的趋势。气泡在井壁的粘着吸附分为四个过程,即接触发生、水层减薄、水层破裂、最终形式是形成三相润湿周边,产生具有疏水性、粘弹性的泡沫吸附壁,从而起到抑制井壁表面水化的作用。
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| 关 键 词： | 钻井流体 泡沫性能 井壁 吸附 |
The physical chemistry action of foam on borehole wall |
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| Abstract: | The action of foam on wellbore wall comprises four steps : (1) contact , (2) thinning of water layer , (3) broken of water layer and (4) enlargement of wetting interface . It is proposed that foam adsorption layer possesses the advantage of hydrophobicity and viscoelasticity , and forms an barrier for the invasion of free water to wellbore wall . |
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| Keywords: | Foam Drilling Fluid Clay Stabilization Adsorption |
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