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介绍在钻打热水井过程中处理卡钻和爆破技术。井深300米,水深204米、水温83～93℃。钻扦卡在231.9米处。经过试验,选用爆速高、爆压大、耐高温抗水的黑索今炸药。现场爆破筒装药,药量800克。配以特制电雷管,采取串并联起爆网路。起爆起,用卷扬机将钻扦一节一节吊出而又未破坏井壁。
Describes the process of drilling and blasting in the process of drilling hot water wells. Depth of 300 meters, depth of 204 meters, the water temperature of 83 ~ 93 ℃. Drilling sticks at 231.9 meters. After testing, the selection of high detonation speed, explosion pressure, high temperature resistant water black cable this dynamite. Live burst cartridge charge, dose 800 grams. Together with a special electric detonator, take series and parallel detonating network. Exploded, with a winch will drill stick section hanging out without destroying the wall.