Health and Safety Health and Safety Executive Executive Dropped Objects Review of 2014 and Update February 2015 Donald Dobson Health & Safety Executive Offshore Division
Dropped objects – quarterly totals 40 35 30 25 20 15 10 5 0 Q3 - Q2 - Q1 - Q4 - Q3 - Q2 - Q1 - Q4 - Q3 - 2008 2009 2010 2010 2011 2012 2013 2013 2014
2014 - All Incidents 50 45 40 35 30 25 20 15 10 5 0 Rig & Well Ops Crane & Lifting Other
2015 - All Incidents 7 6 5 4 3 2 1 0 Rig & Well Ops Crane & Lifting Other
Derrick & Well Ops Incidents 2014 25 Dropped object 20 Lifting equip Fall from height 15 Trips & slips Handling injury HCR 10 Use of tool Moving machinery 5 Pressure equip Structural 0 Classification
Derrick & Well Ops Dropped Objects – 2014 5 4.5 4 Pipe handling Derrick fitting 3.5 Tubular 3 Personal 2.5 Lifting Equip 2 Drilling equip 1.5 Wireline Other 1 0.5 0
Derrick & Well Ops Incidents • Running ESP cables, sheave hinge roller (4.5kg) fell 12m to rig floor • Down-hole gauge carrier (142kg & 5.5m) detached from wire-line & toppled to deck • During recalibration of hydrocracker (sic) and encoder plastic gear (0.5kg) fell 30m to rig floor • Link-tilt crank to bale pin (0.45kg) backed out and fell 30m to rig floor • Top drive struck cross-member of dolly rails; bolts failed & cross-member (40kg) fell 3m to rig floor • Steel tube (2.9kg) fell 4.5m from rig floor during operations • Removing cap (3.5kg) from test tree actuator, floorman dropped cap 10m to rig floor • Picking up joint of 7” tubing with 7 5/8” elevators, it slipped out and slid back to cat-walk • Rigging up wire-line, line parted & fell 21m to drill floor when sheave raised
Derrick & Well Ops Dropped Objects – January & February 2015 2 1.8 1.6 Pipe handling Derrick fitting 1.4 Tubular 1.2 Personal 1 Lifting Equip 0.8 Drilling equip 0.6 Wireline Other 0.4 0.2 0
Derrick etc. Dropped Objects 2015 • During high winds light fixture bracing (0.9kg) detached & fell 10m to rotary table • During very high winds section of cable rack detached & fell to rig floor • Descending top drive contacted tugger line (1.05kg/m); both ends fell to rig floor; sheave at 44m • Section of drive track (28.6kg) detached from vertical pipe handler & fell 34.4m to doghouse to rig floor
Crane & Lifting Operations – 2014 7 6 5 Crane failure Load 4 Collision 3 Unsecured item Fitting 2 1 0
Crane & Lifting Operations – January & February 2015 1 0.9 0.8 0.7 Crane failure 0.6 Load 0.5 Collision Unsecured item 0.4 Fitting 0.3 0.2 0.1 0
Crane & Lifting Operations • Fabric bag containing DP protectors (140kg) detached from crane hook & fell 4.6m to deck • Starting crane, it slewed dislodging chock (80kg) from rest; chock fell 8m onto pipework • Installing jacket extension, tubular piece (15 Tonne) detached from lifting frame and fell to seabed. (Bolted flange failure) • Moving diverter running tool (1100kg) to catwalk, sling broke & tool fell 2m to pipe deck • Crane rope guide failed; pieces (1.1kg & 0.6kg) fell 6,9m to walkway • Sheet steel cover on palfinger crane hydraulics detached in high wind & fell to pipe deck • Lowering container (9.8 tonne), it was dropped 3.4m onto timber deck beams and well test pipe-work
• Removing 12” spool, it slipped in rigging and dropped 1.5m, striking scaffold • Lowering block & booming out, headache ball struck sheave; whip-line parted; headache ball landed on deck of supply vessel • Using crane to free brine hose tangled with potable water hose, strop failed and hose fell 9m striking member of deck crew • 3m stinger found to have detached from whip line hook and assumed to have fallen into sea 2015 • During crane ops, crane rope struck gas detector reflector plate (0.5kg) which fell 30m to scaffolding • Sheath protection pin (0.6kg) from crane main block sheave dislodged & fell 44m to main deck
Other dropped objects – 2014 35 30 25 Fittings 20 Unsecured 15 Personal 10 5 0
Fittings • During jarring, section of passive fire protection (6kg) detached & fell 4.2m onto scaffold structure • Section of corroded scaffold tube (2.9kg) found on walkway; believed to have fallen 6m • Length of corroded grating (1.2kg) fell 19m from walkway to cellar deck • Angle iron bar (3.5kg) found on walkway at bottom of flare stack after bad weather • Piece of cladding found at deck level between two exhaust stacks after adverse weather • Scaffold pole (4.5kg) fell 5m to deck in adverse weather • Redundant lighting bracket (2.2kg) detached & fell 14.5m to level 1. • Sign (7kg) detached in adverse weather and fell 7m onto top of container • During high wind section of cladding (13.2kg) detached & fell 7m to walkway, striking pipework on way down • Metal blank plate (14.5kg) fell 11m from accommodation module to walkway
• Piece of sheet metal (5.4kg) dislodged from platform in high wind & fell 7m • Section of sheet metal (45kg) detached from underside of rig stair in high wind & fell 10 to walkway
Unsecured • Crew member stepped onto grating; unsecured section (8.5kg) gave way & fell 3m to process deck
Other dropped objects – January & February 2015 5 4.5 4 3.5 3 Fittings Unsecured 2.5 Personal 2 1.5 1 0.5 0
Other Dropped Objects - 2015 • During high winds section of fibre-glass pipe lagging fell from pipe rack to walkway • During visit to NUI section of derrick cladding found to have fallen into skip. Believed due to high winds • After high winds section of cladding from accommodation missing, believed fallen into sea. • During high winds piece of uni-strut and perspex (8.25kg) fell 3.6m to walkway • Removing junction box (9.1kg), it slipped out of supporting rope & fell 5m to walkway • Pin (1kg) from shackle from gangway cone securing strap found fallen 12.4m to main deck • Bundle of instrument tubing (4kg) dropped through grating & fell 4m striking individual on shoulder-blade
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