公开(公告)号：US20150218895A1

公开(公告)日：2015-08-06

申请号：US14173063

申请日：2014-02-05

申请人： ATLAS COPCO NORTH AMERICA, LLC

发明人： Mahmood Hassan ,  Tim Ledbetter

IPC分类号： E21B19/16 ,  E21B44/00 ,  G05B15/02 ,  E21B15/00

CPC分类号： E21B19/165 ,  E21B15/00 ,  E21B44/00

摘要： A system for automated drilling rod changing has an upper position sensor capable of sensing the position of the rotary head with respect to the deck, and a lower position sensor also capable of sensing the position of the rotary head with respect to the deck. The position sensors have respective electrical outputs connected to a computer. The computer is programmed to compute the vertical position of the rotary head with respect to the deck at a first position, where a first rod is suspended above a second rod held by the table clamp, and at a second position, where the box end of the first rod is capable of being connected to the pin end of the second rod, based on the computed position of the rotary head; and, the computer is programmed to command the rotary head to move from the first position to the second position.

摘要翻译： 用于自动钻杆更换的系统具有能够感测旋转头相对于甲板的位置的上部位置传感器，以及还能够感测旋转头相对于甲板的位置的下部位置传感器。 位置传感器具有连接到计算机的相应的电输出。 计算机被编程为在第一位置处计算旋转头相对于甲板的垂直位置，其中第一杆悬挂在由夹具夹持的第二杆上方，并且在第二位置处， 基于计算出的旋转头的位置，第一杆能够连接到第二杆的销端; 并且计算机被编程为命令旋转头从第一位置移动到第二位置。