Oil Temperature
Oil Temperature
(OP)
(PLEASE HELP) What is the temperature of oil when it emerges onto the sea in the North sea. Is the oil directed to dry land from the well or does it have to go via the oil platform.
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RE: Oil Temperature
RE: Oil Temperature
The oil, stable at roughly atmospheric pressure & temperature, is then either pipelined to shore, or stored on the production unit in big tanks and transferred to shore by oil tankers. The gas may be pipelined to shore or used as fuel or injected back into the oil field. The water, cleaned up of the oil, is dumped into the sea.
The wellehad temperture really depends upon the field: the deeper the field, the hotter the flowing wellhead temp. 'Normal' fields might be 80- 120°C, high temperature fields can have a Flowing Wellhead Temperature of as much as 200°C
RE: Oil Temperature
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RE: Oil Temperature
HAZOP at www.curryhydrocarbons.ca
RE: Oil Temperature
Many Thanks
RE: Oil Temperature
So for deeper water, or for smaller fields that can't support the economics of a platform, you go for subsea wells and a floating host: FPSOs, FPFs. Floating hosts are often cheap as you can use off the shelf tanker or semi sub designs (and Keppel FELS will build you a tanker in about 3 days). You can even buy a semi or a tanker second hand and convert it.
The other application for subsea trees are for small satellite oilfields near an exisitng platform: in the North Sea now, many of the platforms no longer produce oil from the fields they were installed on, but from many, many other fields producing through subsea wells tied back to the platform by short, subsea infield flowlines.
The operational advantage of a surface, wellhead ("dry tree" is the jargon), is what has driven the efforts to come up with floating hosts that can use dry trees: TLPs, MiniTLPs, Spars, Deep draught semis and so on.