shale stability to hydration 泥页岩水化稳定性
Preexisting research shows that there are three main factors that affect the borehole stability of Air-Drilling: mechanical reason, hydration reason and the Weaked surface instability reason.
研究表明,影响空气钻井井壁稳定的主要因素有三个:力学不稳定,水化不稳定和岩体破裂或弱面不稳定。
The method to predict wellbore stability is provided considering hydration and filtrate cake quality. In addition, this method was applied in field with better prediction results.
给出了考虑水化作用和滤饼质量后预测井壁稳定性的方法,同时将该方法应用于现场,取得了较好的预测效果。
Performance: Corrosion resistance good, the hydration heat low, the thermal stability is good.
性能:抗腐蚀较好,水化热低、耐热性较好。
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