Casino, Henry and Netherby
VIC/P24 & VIC/L30 permits, Otway Basin, offshore Victoria, approximately 250 kilometres south-west of Melbourne in 70 metres of water.
Santos – 50% (operator)
AWE – 25%
Mitsui – 25%
The Casino field was discovered in 2002 by the Casino 1 exploration well. This was followed by further commercial discoveries at Henry in 2005 and Netherby in 2008.
Full production from the Casino field commenced in February 2006 and from the Henry and Netherby fields in February 2010.
Santos has an agreement with Energy Australia to supply up to 420 petajoules of gas over 12 years.
The Casino field has two subsea production wells which produce through a 34 kilometre subsea pipeline to shore. The gas then flows under the shore via a directionally-drilled crossing and then to the Energy Australia-owned Iona gas processing plant a further 12 kilometres inland.
The Iona gas plant receives raw gas from the Casino field and processes it into sales gas and stabilised condensate. The process includes inlet facilities, gas conditioning (dehydration and dewpoint) and compression. In addition, the plant provides the delivery of chemicals to the Casino wellheads required for flow assurance and integrity of the pipeline system.
The Henry and Netherby developments are tied back to the existing Casino infrastructure via an additional 21 kilometres of offshore pipeline.