Health
Healthand
andSafety
Safety
Executive
Executive
Dropped Objects Update
January to March 2011
Donald Dobson
Health & Safety Executive
Offshore Division
Dropped objects – quarterly totals
40
35
30
25
20
15
10
5
0
Q3 2008
Q1 2009
Q3 2009
Q1 2010
Q3 2010
Q1 2011
2011 January to March - All Incidents
14
12
10
8
6
4
2
0
Rig & Well Ops
Crane & Lifting
Other
Derrick & Well Ops Incidents
3
2.5
2
1.5
1
0.5
0
Pipe handling
Derrick fitting
Tubular
Personal
Lifting Equip
Drilling equip
Wireline
Other
Derrick & Well Ops Incidents
•
•
•
•
•
Lifting diverter through rotary, overshot +
extension (4.5 MT) detached and fell 50ft to
jacket deck
Cover for top drive junction box (5kg) detached
during jarring & fell 70ft to rig floor – sheared
bolts
Lifting out annular packer (680 kg) from LMRP it
struck an anode and fell 9m to deck
Sledge hammer fell 40ft to rig floor; ring on end
of tool lanyard failed
Picking up wire-line valve (130kg) to run into
well, it detached from running tool & fell 4.3m to
rig floor
Crane & Lifting Operations
3
2.5
2
1.5
1
0.5
0
Crane failure
Load
Collision
Unsecured item
Crane & Lifting Operations
•
Wooden sheathing from crane boom rest
dislodged & fell to off-load hose walkway
•
Lifting valve from WI filter package,
actuator detached and fell 30” to grating
below (corrode bolts)
Other dropped objects
8
7
6
5
4
3
2
1
0
Fittings
Unsecured
Personal
Other Dropped Objects
•
Two lengths of redundant deluge pipe-work (7kg
& 2kg) detached and fell 6m to walkway
•
Emergency beacon (10kg) detached from
bracket, falling 2.5m to extent of electric cable
•
Hammer head (1.8kg) detached and fell 13m
during rope access work on crane boom
•
Valve being manoeuvred struck second valve
which slipped under handrail & fell into sea