The Spar Oil and Gas Platform Jobs
A spar oil and gas
platform consists of a single vertical cylinder of large diameter underneath a
deck. The cylindrical compartment is weighted at the base crammed with a
substance that is denser than water to lower the center of gravity of the
platform and to give more stability. Furthermore, the spar hull is surrounded
by helical strakes to lessen the effects of vortex induced motion.
Spar
oil and gas platforms are permanently anchored to the ocean floor through spread
mooring method consists of either a chain+polyester+chain or chain+wire+chain pattern.
Spar oil
and gas production platforms have been build-up as a substitute to standard platforms.
A spar oil and gas platforms is
a kind of floating oil platform normally used in very deeper seas, and is
specified for logs used as buoys in shipping that are moored in vertical position.
The
spars oil and gas platforms are less susceptible to wind, wave and under currents
because of deep draft construction which permits for both dry tree and subsea
production. Spar oil platforms are more common in the US Gulf of Mexico but spars
are also located in offshore Norway and offshore Malaysia.
There
are three main types of spar oil and gas platforms namely, a classic spar, a cell
spar and a truss spar. The classic spar designed of the cylindrical hull noted
above, with heavy ballast tanks situated at the bottom of the cylinder.
The
cell spar oil and gas platform, has a huge central cylinder enclosed by smaller
cylinders of alternating lengths. At the base of the longer cylinders is the
soft tank containing the heavy ballasting material, like to a truss spar. The
Red Hawk spar oil and gas platform, with the cell spar design was only ever
used for single oil and gas platform, which was decommissioned in year 2014 according
to the bureau of safety and environmental enforcement's ‘Rigs to Reefs’ plan. It
was the deepest floating oil and gas platform to ever be decommissioned at the
time of its decommissioning.
A
truss spar oil and gas platform has a smaller cylindrical hard tank than a
classic spar and has a truss structure attached to the floor of the hard tank.
This truss structure made up of four huge orthogonal pilings with x-shapes
between each of the pillars and heave plates at in-between depths to facilitates
damping.
At the
base of the truss structure, there is a comparatively smaller keel, or soft
tank, that holds the heavy ballasting substances. Normally soft tanks are rectangular
in shape, but may have been also round to contain specific construction matters.
Widely spar oil and gas platforms are of this kind.
Neptune spar oil and gas platform, located in the Gulf of Mexico, was the first spar designed for oil and gas production, now Anadarko and was installed in September 1996 by Kerr McGee. Perdido, a truss spar in the Gulf of Mexico, is the world's deepest
oil and gas production platform, in a water depth of approx of 2,440 meters.
This oil and gas production platform is operated by Royal Dutch Shell.
