绳索取心冲击回转钻进工艺在独狼沟金矿勘查中的运用

Application of Wire-line Coring Percussive Rotary Drilling Technology in the Dulanggou Gold Exploration

摘要:

独狼沟矿区岩石坚硬、致密，研磨性弱，可钻性等级高，前期施工过程中常出现钻进打滑，钻进时效低、回次进尺短，辅助工作量多，钻孔周期长；采用TXY75型绳索取心液动冲击器钻进工艺施工后，很好地克服了钻进打滑问题，钻进时效加快，回次进尺提高，岩心堵塞次数减少，辅助时间缩短，纯钻时间利用率提高，施工进度加快，经济效益显著。

Abstract:

The rock in Dulanggou mine is hard and dense with the characteristics of weak abrasiveness and high drillability. The drilling efficiency and footage are low with large amount of auxiliary work and long drilling cycle in the earlier-stage construction. By using TXY75 wire-line coring hydraulic impactor technology, drilling “slip” was effectively overcome, drilling efficiency and footage were improved with less core plugging, reduced auxiliary time and higher efficient net drilling time.