Telescopic Kelly Bar
AssemblyNested square bars transmitting torque and crowd. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Telescopic Kelly Bar
3 top-level lines as of r145400| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Outer Kelly Section | rotary-drilling-rig-kelly-outer | 1× | 1 | · | part |
| 2 | Inner Kelly Section | rotary-drilling-rig-kelly-inner | 2× | 2 | · | part |
| 3 | Kelly Drive Box | rotary-drilling-rig-kelly-box | 1× | 1 | · | part |