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曲斜7井是在老井φ311mm技术套管以下231m（井深1720m）处裸眼中侧钻的一口双靶深定向探井，设计井深3389m，最大井斜角53°，水平位移952m。在井下严重垮塌、井径大、有S形井段的情况下，钻至2598m接单根时发生压差粘附卡钻。经2次泡水基解卡剂和打携砂液清除岩屑床、降低钻井液密度处理均无效，后用气举降压解于一次成功。文中介绍了气举降压解卡的原理和现场施工工艺。该方法的优点是简便、快捷、费用低、效果好，且不改变原有钻井液的性能。
Qu Xie 7 well is a double-target deep directional exploration drill drilled at 231m (1720m depth) below the old casing of φ311mm casing. The designed well depth is 3389m, the maximum inclination angle is 53 ° and the horizontal displacement is 952m. Severe collapse in the underground, well diameter, with S-shaped section of the case, the drill to 2598m take a single root when pressure sticking stuck. After 2 times soaking water-based card-dissolving agent and sand-carrying fluid to remove cuttings bed, reducing the density of drilling fluid treatment were ineffective, after decompression with gas lift in a success. The article describes the gas lift buck card theory and site construction process. The advantages of this method are simple, quick, low cost, good effect, and does not change the performance of the original drilling fluid.