Retreating type well washing process for horizontal well in salt lake area

The invention relates to a salt lake area horizontal well withdrawing type well washing process which comprises the following steps: S1, drilling a horizontal well: drilling in a lower brine storage layer of a salt lake until the horizontal well is formed, and enabling the tail end of the horizontal well to be communicated with an existing vertical brine mining well; s2, the position of a potential brine pump in the brine mining well is adjusted; and S3, well washing of the horizontal well. The method has the effect of improving the single-well brine extraction amount. 本申请涉及一种盐湖地区水平井退出式洗井工艺，包括如下步骤：S1、水平井的钻进：在盐湖的下部储卤层中进行钻进直至而形成水平井，使水平井的末端与已有的竖向采卤井连通；S2、采卤井中潜卤泵位置的调整；S3、水平井的洗井。本申请具有提高单井采卤量的效果。