Dropped Objects Whos Responsible Presented by Bob Thompson, Chevron - - PowerPoint PPT Presentation

Dropped Objects Who’s Responsible

Presented by Bob Thompson, Chevron Indonesia

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• A bolt attaching the gripper head to the upper

racking arm came loose and fell to the drillfloor during a tripping operation

• All personnel were outside the danger area.

Causes:

• 1. Incorrect material in manufacture
• 2. Bolt had the incorrect part number
• 3. Faulty design - should not have been with

welded head

• 4. New design bolt in 2000 - not changed out.

Design - Bolt fell from URA to Drillfloor - 1.6kg x 25m

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Bar holding skid rubber

in place fell 30m to cargo deck.

Manufacture - Bar fell 30m to Cargo Deck

Causes:

• 1. Poor design
• 2. Poor manufacture
• 3. Poor maintenance.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Compressor delivered with

broken Weco coupling inside skid

• Coupling had been sheared
• ff during transit.

Packaging - Coupling sheared off during transit

Causes:

• 1. Poor design
• 2. Poor packaging
• 3. Lack of awareness.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Hammer and Chisel

found on the top of container prior to lifting.

Transport - Items found on the top of container

Causes:

• 1. Carelessness of

persons using tools

• 2. Failure to check loads

prior to despatch.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Rubble found in the

Forklift Pockets.

Quayside - Rubble found in the Forklift Pockets

Causes:

• 1. Poor storage facility
• 2. Failure to check loads

prior to despatch.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

Transport by Sea - Item left on top of a unit

Causes:

• 1. Lack of awareness of

maintenance staff

• 2. Failure to check loads

prior to despatch.

• A temperature gauge

used to check exhaust temperature was left on top of a unit

• The gauge weighed

approximately 0.25kg.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Air regulator fitted to wireline

hoist.

• Not designed for use at

height

• Securing dogs not engaged
• When energised cover and

internals (230gm) blew off and fell 10m to drillfloor

• No injuries were sustained.

Installation / Commission - Item not designed for use at height

Cause:

• 1. Equipment unsuitable for

use at height.

Dropped Objects Who’s Responsible

• A bolt was observed laying on drill

floor 3m from personnel

• Investigation showed that a bolt for a

roller on pipe handler had come loose, the nut and bolt had

• disassembled. Roller (750gr) was

found loose on roller gripper head. Causes:

• 1. Failure of lock washer
• 2. Poor design.

Operations - Bolt fell 24m to Drillfloor

Responsibilities Through the Supply Chain

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Pin fell 6m from Bail Retainer

to Drillfloor, the pin weighed 0.5kg.

Operations - Pin fell 6m to Drillfloor

Causes:

• 1. Poor design of cotter pin

security

• 2. Cotter pin safety spring was

flicked-up and fell out. Considerations:

• 1. Secure pins with ty-wraps
• 2. Re-design pin security.

Dropped Objects Who’s Responsible

• While running riser a flange on the riser knocked

loose a part of the grating on a work platform.

• The grating fell to a lower level landing 2m from a

person.

• There were people on all levels observing to make

sure the riser was not hitting obstructions.

Causes:

• 1. Roughneck changes level without notifying

the Driller and has his focus on the guide lines

• 2. Failure to follow procedures - Work platform

was not fully retracted

• 3. Person was inside closed area.

Operations - Grating (20kg) fell 8m

Responsibilities Through the Supply Chain

Dropped Objects Who’s Responsible

• Hammer (0.4kg) fell 33m

from work platform following maintenance

• perations.
• No personnel were working

in the vicinity.

Maintenance / Repair - Hammer fell 30m

Causes:

• 1. Insufficient Risk

Assessment

• 2. No securing of tools at

height.

Responsibilities Through the Supply Chain

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

Decommission / Dismantle - Spike fell 7 - 8 feet

• Spike, hidden inside scaffolding

tube fell 7 - 8 feet to the deck narrowly missing Scaffolder.

Causes:

• 1. Insufficient Risk Assessment
• 2. No securing of tools at height
• 3. Bad habits.

Recommendations:

• 1. Cap tube ends
• 2. Secure tools at height.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

• Container back loaded from
• ffshore. Door opened and fell off.
• Further investigation revealed door

hinges were unsatisfactory and container had made substantial contact with solid object.

Packing - Door fell off during backloading

Causes:

• 1. Poor maintenance and fabrication
• f containers
• 2. Poor standards of inspection
• 3. Poor handling of loads.

Dropped Objects Who’s Responsible

Responsibilities Through the Supply Chain

www.droponline.org Developed in association with

Everyone is Responsible Dropped Objects