The information contain on this page relates to gas supplied from the Athena, Iona and Otway Gas Plants.

Gas Definition

Attribute
Gas TypePrimary Gas (Natural Gas)
Other primary gases presentNone
Blending LimitN/A
Changes to Gas typeThe service provider is not aware that the type of gas being transported through the pipeline will change in the near future. Any future change in the type of gas being transported would require a detailed assessment and would need to comply with our obligations under our licence including but not limited to our Pipeline Safety Case and Fracture Control Plan.

Gas Specification

The following table is for indicitive information only and should only be used as a guide.
In all cases, any gas supplied by a Shipper to SEA Gas must comply with both the requirements of Laws applicable in South Australia and the Laws applicable in Victoria.

Characteristics and ComponentSpecification
Min Temp2°C
Max Temp50°C
Min Wobbe46.0
Max Wobbe52.0
Higher Heating ValueMax 42.3 MJ/m3
OxygenMax 0.2% by volume
Total InertsMax 7% by volume
Hydrocarbon Dew PointMax 2°C at 3,500 kPag gauge
Water ContentMax 73 mg/m3 (based on 15,000 kPa)
Water Dew Point0°C
Hydrogen SulphideMax 5.7 mg/m3
Total SulphurMax 50 mg/m3

Notes:

  • Cubic metre (m3) refers to a cubic metre of gas at standard conditions of 101.325 kPa absolute and 15°C.

    • Supply Curtailment Methodology

    This supplier curtailment methodology is published for the purposes of Rule 101B (2)(f) of the National Gas Rules.

    SEA Gas may curtail services including, without limitation, to:

    • preserve the operational integrity of the pipeline system;
    • avoid a material threat to safety;
    • respond to an emergency condition;
    • carry out maintenance;
    • deal with an act or omission of a shipper in breach of its transportation agreement; or
    • manage a Force Majeure event.

    In each case, SEA Gas will seek to address the situation based on the best information available to it at the time and use reasonable endeavours not to curtail Firm Services to an extent that is greater than necessary.