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在水文地质勘探中,为保证钻探质量,常采用弹子接手取心法提高采取率。但这种方法在拧卸钻杆时,钻杆内孔积存的泥浆会四处喷射,给机台操作者带来困难、且不安全。为此,我队尤少翻技师设计了一种安全防喷接手 (见图)。这种接手的连接顺序为:钻杆一,安全防喷接手,粗径钻具。其传动原理为:在钻进时该接手连于粗径钻具的锁接手上,钻进终了’采取岩心前),关闭泥浆泵阀门,打开水笼头上盖螺丝,将钢球10投入钻杆内,后开泵送冲洗液,在泵压下
In hydrogeological exploration, in order to ensure the quality of drilling, often take the marbles take the heart to improve the adoption rate. However, when this method is used to unscrew the drill pipe, mud accumulated in the inner hole of the drill pipe can be sprayed around, which brings difficulties to the machine operator and is not safe. To this end, my team is rarely technicians to design a safe spray to take over (see photo). This take over the connection sequence is: drill pipe, a safety spray to take over, large diameter drill. The drive principle is: When taking over the handle connected to the large-diameter drill lock, drill into the end ’before taking the core), close the mud pump valve, open the tap cap screws, the ball 10 into the drill Rod inside, after the open pumping fluid, under pressure in the pump