Structures and Definitions - 4 Flashcards
Definition:
,,,,,,,,, is the legs or support structure
Jacket
Definition:
Jackets are huge floating platforms which house cranes capable of ,,,,
lifting thousands of tons
Definition:
The vertical pipe which joins the production facility to the subsea pipe to carry the product back to the beach to the processing plant known as ,,,,,,,
Riser
Definition:
Area above the splash zone up to the cellar deck…
Atmospheric zone
Definition:
Special type of valve which prevents loss of oil or gas from the well during drilling operations.
Blow out preventers (BOPs)
Definition:
Subsea oil storage facility usually on the seabed, a watertight chamber is the dictionary definition
Caisson
Definition:
The first deck on the platform above the spider deck. The area below the rotary table on a drilling rig.
Cellar deck
Definition:
Pipes from the wells to the topside pipe work
Conductors
Definition:
Special deck area allocated to helicopter landing.
Helideck
Definition:
Point at which a number of cross bracings and tubular members, are joined to a vertical column
Node
Definition:
Substructure beneath the main deck which usually gives access to safety boats and standby boats
Spiderdeck
Definition:
Generally above the water line but liable to be affected by wave action. The area of jacket between ,,,, and ,,, of the lowest astronomical tide (LAT).
Splash zone
-2.5 & +12m
Definition:
The ,,,,, zone is a loose demarcation boundary, which dictates the type of anti-corrosion coating.
splash
Definition:
Submerged zone Area between the ,,,, and ,,,, of LAT.
seabed & -2.5m
Definition:
,,,,,,, Tank on the bottom of the jack up legs to strengthen the legs and prevent it sinking into the seabed.
Spud can
Definition:
A very long large diameter pipe long enough to create a pressure drop and allow slugs of hydrocarbons to condense.
Slug catcher
Definition:
,,,totally enclosed life-saving capsule, some can seat up to 50 men
Survival capsule
Definition:
,,,,, Uppermost deck on the structure.
Top deck
Definition:
,,,,,, a general term describing anywhere above cellar deck
Topsides
Definition:
Typical sea depths-
Stretching for up to ,,,,km, but on average ,,,,,km from the shore is the continental shelf
1200km
65-100km
Definition:
Typical sea depths-
The depth varies from ,,,,m with an average depth of ,,
50-550m
130m
Definition:
Typical sea depths-
In coastal regions of 50 m depth, drilling would be done by a ,,,,
drilling barge
Definition:
Typical sea depths-
Further offshore drilling (about 120m) a ,,,, would be more appropriate,
jack up
Definition:
Typical sea depths-
drilling on the continental shelf, ,,,,, would be the norm
fixed platforms
Definition:
Typical sea depths-
,,,,,,,,,,,, (working at an average depth of 300-500m
with 1000m being exceptional) would be favoured on the extremes of the continental shelf and into the next plateau area, the continental rise
Semi-submersible platforms
Definition:
Typical sea depths-
the a ,,,,,, plain starting at about 600km plus from
the shoreline, average depths are ,,,m with the deepest areas at ,,,,.
bysmal
3800
11,000m plus
Definition:
Typical sea depths-
average depths are 3800m with the deepest areas at
11,000m plus. At such depths a ,,,,,,would be more likely
drilling ship
