Entry Specification

All gas entering the export pipeline will be expected to meet the following Entry Specification.

Gas Condition Cricondenbar, 106 bara. As calculated by the Peng Robinson equasion of state or such alternative method as may be agreed from time to time.
Pressure < 163.8 barg
Temperature -5°C to 35°C
Water Content < 24 Kg per Mscm
H2S Content < 2.3 ppm
Total Sulphur Content < 15 ppm expressed as H2S
C02 Content < 3.8% mole
O2 Content < 7.5 ppm
Mercury Maximum mercury content of 0.01 microgrammes per Standard Cubic Metre, unless otherwise agreed
Mercaptans < 1.0 ppm Vol


Natural Gas shall be commercially free from objectionable odours and from materials and dust or other solid or fluid matter, waxes, gums and gum forming constituents which might cause injury to, or interference with, the proper operation of the lines, meters, regulators or other appliances or facilities through which it flows.

No chemicals or other substances may be introduced by any means into the Natural Gas, which might be carried over into the Pipeline without the prior agreement of SIRGE Owners, such agreement not to be unreasonably withheld.

Natural Gas must be capable of being processed to meet National Grid Gas redelivery specification on Wobbe Index, Incomplete Combustion Factor, and Soot Index. The above specification may be subject to change in the future as a result of different requirements from regulators, or governmental authorities, not within the control of the SIRGE Owners.