压差卡钻，又称粘吸卡钻，是指钻井中的固相颗粒吸附在井壁上就形成的滤饼造成钻杆粘吸卡住。
8、压差卡钻(differential pressure sticking)：即粘附卡钻，钻井液液柱压力大于地层孔隙压力使钻柱紧贴于井壁发生卡钻。
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对定向井压差卡钻的分析有利于更好的进行定向钻井的施工。
It is beneficial to carry out the construction of directional well through the analysis of directional differential pipe-sticking.
库车山前构造地质复杂，压差卡钻十分频繁，严重制约了钻井效率。
Kuqa's piedmont configuration is so complex that differential pressure sticking frequently occurs, which seriously restricting the drilling efficiency.
由于其刚性比钻铤少，和井壁接触面积小，也不容易形成压差卡钻。
Because its rigidity are less than the drill collar, less contact area with wall of a well, is also not easy to form differential pressure sticking.
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