Drops Survey

Purpose & Scope

The dropped objects survey consists on conducting a detailed inspection of the mast/derrick and any other elevated structure for the potential drops hazard.
A detailed report gives the assessment of the potential drops hazard and recommendations to limit such potential.
The main purpose is to reduce potenitally fatal hazards caused by a dropped object
The above scope can be reviewed and adapted to client requirements.

Identification of all objects that can drop from their hanging location and harm people or equipment,
Review of calculation notices for the capacity of each object support, last load tests,
Check of any third party inspection report,
Check of calculation, drawings and procedures for top drive guide alignment,
Check of regular mast inspection,
Check of regular top drive inspection (especially for loose items),
Inspection of double securing features for potential dropped objects,
Inspection of fixation of lighting fixtures, sheaves, moving parts, rollers, nuts, bolts, clamps…
Control of the DROPS program and the frequency of inspection of each potential dropped object,
Check of the tag on each dropped object

Mast/Derrick Sections:
- Crown section (bumpers beams, sheaves, handrails, lighting, bolting)
- Upper section (between crown & racking board)
- Racking board
- Lower section (between racking board and drill floor)
- Traveling Equipments (top drive, block, pipe handler, bundles and rotary hose)
Substructure Sections:
- Outside cellar deck (mainly equipments falling from floor)
- Inside Cellar Deck (BOP handling equipments, lighting, accessories…)
Other Areas:
- Rig Floor/Dog House/Drillers cabin
- Mud Pumps room
- Engine & electrical room
- Outside Deck
- Cranes
- …