公开(公告)号：US10435964B2

公开(公告)日：2019-10-08

申请号：US15790458

申请日：2017-10-23

申请人： Nabors Drilling Technologies USA, Inc.

发明人： Christopher Magnuson ,  Steven K. Deel ,  Predrag Radovanovic ,  Djuric Miodrag

IPC分类号： E21B19/16 ,  E21B19/14 ,  E21B19/06

摘要： The systems, devices, and methods described herein relate to a modular gripperhead system for a drilling rig. The system includes a gripper having a first gripper arm and a second opposing gripper arm, each gripper arm having an inwardly facing gripping surface that forms at least a portion of a chamber sized to receive a portion of a cylindrical tubular, wherein the portion of the chamber has a longitudinal axis. The system also includes a grabber having a first grabber arm and a second grabber arm. Each grabber arm may be displaceable between a retracted position and an extended position in a direction along a first axis that is transverse to the longitudinal axis. The first and second grabber arms may be pivotable about a first and second pivot point between an open position sized to permit a portion of a cylindrical tubular to enter between the first and the second grabber arms and a closed position sized to secure a portion of a cylindrical tubular between the first and the second grabber arms.

公开(公告)号：US20180126563A1

公开(公告)日：2018-05-10

申请号：US15790458

申请日：2017-10-23

申请人： Nabors Drilling Technologies USA, Inc.

发明人： Christopher Magnuson ,  Steven K. Deel ,  Predrag Radovanovic ,  Djuric Miodrag

IPC分类号： B25J15/00 ,  E21B19/16

CPC分类号： E21B19/14 ,  E21B19/06 ,  E21B19/161 ,  E21B19/168

摘要： The systems, devices, and methods described herein relate to a modular gripperhead system for a drilling rig. The system includes a gripper having a first gripper arm and a second opposing gripper arm, each gripper arm having an inwardly facing gripping surface that forms at least a portion of a chamber sized to receive a portion of a cylindrical tubular, wherein the portion of the chamber has a longitudinal axis. The system also includes a grabber having a first grabber arm and a second grabber arm. Each grabber arm may be displaceable between a retracted position and an extended position in a direction along a first axis that is transverse to the longitudinal axis. The first and second grabber arms may be pivotable about a first and second pivot point between an open position sized to permit a portion of a cylindrical tubular to enter between the first and the second grabber arms and a closed position sized to secure a portion of a cylindrical tubular between the first and the second grabber arms.