公开(公告)号：US20170268302A1

公开(公告)日：2017-09-21

申请号：US15309825

申请日：2016-11-08

Applicant: Schlumberger Technology Corporation

Inventor： Melvin Alan Orr ,  Joe Rodney Berry ,  Robert Metz

IPC: E21B19/24

CPC classification number: E21B19/24 ,  E21B15/00

Abstract: A lower stabilizing arm for stabilizing tubulars for stabbing to the threaded connections of a drill string on drilling rigs. The lower stabilizing arm comprises a bracket and an upper arm having an upper end and a lower end. An upper pair of axially opposed rotary actuators connects the upper end of the upper arm to the bracket. A lower arm is provided having an upper end and a lower end. A central rotary actuator is connected between the lower end of the upper arm and the upper end of the lower arm. A roller bracket is provided having a pair of v-shaped rollers mounted on the roller bracket. A lower pair of axially opposed rotary actuators connects the second end of the lower arm to the roller bracket.