在鑽探工程中,发生井內鑽桿折断和脫落事故时,多使用矢錐(雄或雌型)进行处理,但这种方法在操作上有不少困难。比如,不易扭入鑽桿;扭入时,常因底部的鑽桿亦随之一齐轉动,而扭接不牢,在提昇时容易脫落;特别是当折断的鑽桿上头出现有破裂不規則形狀时,矢锥就不易扭接牢固或根本扭接不上。为此,我队研究試驗成功了“鑽桿撈取器”来代替矢錐。这一方法经几次生产試驗,证明其效果良好,不 In the drilling project, when the drill pipe fracture and fall accident occur in the well, more use of the pyramid (male or female) for processing, but this method has many difficulties in operation. For example, difficult to twist into the drill pipe; twist into, often due to the bottom of the drill pipe also turn together, while the twist is not strong, easy to fall off when lifting; especially when the broken drill pipe appeared on the first rupture irregular Shape, the cone is not easy to twist firmly or simply can not be twisted. To this end, my team successfully tested the “drill pipe” to replace the cone. This method after several production tests to prove its good effect, no