绕障水平对接井在巨厚岩盐层开采中的应用

Application of Obstacle-Avoiding Horizontally Butted Wells in the Exploitation of Hugely Thick Rock Salt Stratum

四川长宁双河长5井,是国内第一口在深层巨厚岩盐层开采中应用绕障水平对接井技术的卤井。应用DST有线随钻施工水平井,长5井井眼自长3井溶腔底部绕过与长1井老溶腔成功对接,实现对接连通采卤生产,大幅提高了矿山卤水产量和质量,提高了采矿回收率。

Shuanghe 5# Well in Changning of Sichuan Province is the first brine well applying obstacle-avoiding horizontally butted wells technology in the exploitation of deep hugely thick rock salt stratum.DST wired drilling is applied to construct horizontal well.Bypassing the cavity bottom of Chang 5# Well,bore hole of Chang 5# Well successfully butts old cavity of Chang 1# Well and realizes brine extraction,which enhances the output and quality of brine by a large margin and increase ore recovery rate.