| 摘要 |
Methods and apparatus for drilling with a top drive system. In one aspect, the apparatus provides a tubular gripping member for use with a top drive to handle a tubular comprising a housing operatively connected to the top drive and a plurality of gripping elements radially disposed in the housing for engaging the tubular, wherein moving the housing relative to the plurality of gripping elements causes the plurality of gripping elements to engage the tubular.
|
