On the basis of analyses of wellbore unstability mechanism,the changing law of shale mechanics parameters was established after shale hydration by the experimentation. 在井眼失穩機理分析的基礎上，經室內實驗得出泥頁岩水化后岩石力學參數的變化規律。
Disc area and height were used for calculation of the normalized mechanical parameters.Glycosaminoglycan content was normalized by dry weight. 用間盤面積及高度對力學參數進行標準化計算，粘多糖的含量通過間盤的乾重來進行標準化。
