Top drive systems and methods

摘要

A system for wellbore operations and methods for use, the wellbore having a wellbore support structure, the system including a hoist subsystem for moving tubulars, a drive subsystem for rotating the tubulars, the drive subsystem releasably connected to the hoist subsystem forming a hoist/drive unit, and powered apparatus for moving the hoist/drive unit, or for moving the hoist subsystem separately.

主权项

1. A system for wellbore operations for a well with a wellbore support structure, the system comprising:
a hoist subsystem for moving tubulars; a drive subsystem for rotating the tubulars; the drive subsystem releasably connected to the hoist subsystem forming a hoist and drive unit; powered apparatus for moving the hoist and drive unit; the drive subsystem disconnectable from the hoist subsystem; and the hoist subsystem, separable from the drive subsystem, for movement by the powered apparatus within the wellbore support structure.