目前在用的水龙头中,SL_7-130和CH-200型水龙头占相当大的比例。这两种水龙头采用浮动冲管,在钻进中,其密封结构经常被刺漏,需停钻检修。在泸州地区钻中深井时,该结构平均使用寿命为80～100小时(SL-7-130型水龙头冲管密封结构的使用寿命为90～110小时,CH-200型的为60～80小时),严重地影响钻井速度,增加了钻井成本。为延长浮动 Currently used faucet, SL_7-130 and CH-200 type faucet accounted for a large proportion. Both faucets use floating red tube, the drilling structure, the sealing structure is often punctured, need to stop drilling maintenance. The average service life of this structure is 80 to 100 hours when drilling a deep well in Luzhou (service life of 90-110 hours for SL-7-130 type faucet flush-pipe sealing structure and 60-80 hours for CH-200 type) , Seriously affecting the drilling speed, increased drilling costs. To extend the float