Fluid Qualities

Standard Platform Terms

Any party interested in using the existing plant should take the following basic parameters into account:

Alwyn platform has a limited capability to handle H2S.

Alwyn platform has no specific CO2 handling equipment and is constrained by the gas export CO2 specification.

Low pressure system operating at 30 barg.

High pressure system operating at 70 barg.

Low, low pressure operating system (with minimal capacity) at 11 barg.

For non-processed transportation over the Alwyn Area platforms, the product stream must meet the oil and gas export specifications highlighted below.

Oil export specification;

For oil export to Sullom Voe Oil Terminal via the Brent System, the True Vapour Pressure (TVP) should not exceed 115 psia at 100°F and the bottom sediment and water content should not exceed 5% by volume.

Gas export specification;

For gas export to the St Fergus Gas Terminal, the following specification applies:

H2S:	3.3 ppm Vol (maximum)
Total Sulphur:	15.0 ppm Vol (maximum) expressed as H2S
Mercaptans:	Undetectable as measured in accordance with IP 272/71
CO2:	3.8% mol (maximum)
O2:	10.0 ppm Vol (maximum)