2001 GEOLAB SILVETTI
processed data in AutoCAD drawings on board the RV Aloha during the post laid
pipe survey off Houston in the Gulf of Mexico, the Aloha sank off Alaska weeks
Originally from a
shipbuilding background, I have considerable and varied experience in Marine
& Offshore Design and possess a disciplined approach including the
motivation to work without supervision or as a member of a project team
dedicated to the ultimate goal.
I served a Naval
Architectural Design Drawing Office apprenticeship at Swan Hunter Shipbuilders
on the Tyne during the days of the Super Tankers in the Sixties and early
Seventies, which included over two years school and shop floor experience with
external studies up to HNC level.
During 1982 I was involved
in a NATO project to convert a standard container vessel into a Combat
Helicopter Support Vessel. Using the next hatch cover as a Heli-Pad, an elevator
with intermediate decks replaced the central containers. With entry through the
elevator machinery house on the hatch over, the side containers were converted
into repair workshops & stores for heli maintenance.
Working alone this
involved close liaison with OTIS the elevator supplier during the design of the
lifting machinery foundations in the deck house and guide supports down through
the intermediate decks to the tank top while trying to attain the approval of
In 1983, ITM presented a
concept to modify the crane jib & hook sheave arrangement on their crane
barge MARINER, the present layout with the sheaves 5m apart handled badly on the
wind and proposed to build a new hook yoke for a 2m wide fall.
Utilising the original
sheaves, I prepared the fabrication and installation drawings of a replacement
sheave block to be installed in the existing jib, along with a new hook yoke for
approval by Lloyds.
Although the boom was
rated at 400 t installed on the barge the maximum rating was 200 t and required
the inclusion of a load cell modified boom and final load testing.
engaged me during 1988 to manage the design, detail, fabrication and supervision
of sub-contractors on a ferry modification project, to install a tween deck
vehicle hatch/ramp. The ramp was capable of transferring articulated lorries and
cars up to the exterior vehicle deck, which when raised with the last two
lorries formed a flush watertight Upper deck.
With initially a
Structural Engineer followed by two detail designers I prepared the concept,
design & fabrication drawings and supervised the structural fabrication and
mechanical sub contractors to Bureau Veritas acceptance requirements through out
This included the ramp
building and manufacture of a hydraulic jigger winch with a 2m stroke x 400 mm
bore installed in the ramp, which through a sheave arrangement raised the ramp
with hydraulically activated locking pins which held the ramp into the deck
In 1992 Pearson Reelotech
offered me the opportunity to manage the design, detailing, fabrication and
initial testing of the prototype of a retractable stairway to aid the rapid
evacuation of personnel from offshore installations down to sea level into
liferafts or rescue craft.
This was a very
interesting project to handle, having already done preliminary development on
the same concept in 1983 at Seaforth Maritime prior to the Cullen Report on the
Piper Alpha disaster. It involved the design, detailing, fabrication with
intermediate & final testing to gain the approval of Lloyds, with a
electro-mechanical lifting arrangement on a separate enclosure located on top of
the assembly storage deck house.
The stairway having been
winched up into the deck house was released when the alarm was raised or the
entry door latch was activated allowing access down the staircase, after final
testing the prototype was installed on a Conoco platform for offshore
In 1994 having entered the
world of CAD the previous year, when during a quiet work period I bought my
first computer paid for one on one tuition at Loughborough University, I visited
SubSea Offshore in Aberdeen for my first complete project with AutoCAD .
I was involved along with
a dedicated Engineer to complete the structural design and detail of various
pieces of heavy handling equipment to install and control the access
riser/conductors onto the top of the tether caps, which were located on the
casing below the sea level. This allowed access down through the tether of
inspection and x-ray equipment for periodical inspections on the ‘Heidrun’
tension leg platform.
At Kvaerner Oil & Gas
in 1998 using Microstation "SE" to NORSOK standards with Kvaerner's
KOGAS system, I prepared the structural fabrication drawings on an experimental
process plant to extract the CO2 from exhaust emissions of Industrial &
Offshore turbine generation plants.
My scope of work involved
liasing with the client on design finalisation, along with re-routing piping
systems to suit and the solving of un-foreseen problems in an already tight
production schedule, incurred long hours to ensure completion for sea load out,
to the Statoil's test facility.
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