- SWING UP - PYRAMID
Drawwork lifts the mast, the substructure and the complete rig floor. Only 2 main lifts are required
- 1st lift to pick up mast and part of rig floor
- 2nd lift to pick up draw work and aft part of rig floor.
- Position of lifting cables
- 1st PHASE: A-frame positioning
- 2nd PHASE : Lifting the Mast
- 3rd PHASE : Lifting the Drawworks
Lifting Cables - Scheme
- SLING SHOT DRECO
Dedicated hydraulic pistons to lift derrick, substructure and complete rig floor.
INSPECTIONS
Periodical inspections
Substructure, derrick and lifting equipment must have periodical inspections, (every six months)
following the builder's instructions and the API regulations: API RP 4G ed API RP 54.
International Organization for Standardization (ISO) ISO 13534.
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