Introduction
Westsides key CSG assets in Queensland is the Greater Merdian Permits (a joint-venture with Mistui E&P). Located near Moura in Queensland’s Bowen Basin, the project delivered first gas in 1996. Since 2010, the project has been operated by Westside (51% interest holder). The project owns gas compression and pipeline infrastructure that delivers gas to both the GLNG project and the domestic gas market.
Completion Evolution
According to Gorton and Martin [2022], Westside has grown over the last 10 years increasing from 9 TJ/d to 42 TJ/d. One of the changes to the workflow was more efficient drainage. The image below shows the evolution of single laterals to dual and trilaterals (these are 2022 numbers)
References:
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J. Gorton, and M. Martin, The transformation of Australia’s first commercial CSG field into a major gas project: how innovation and subsurface understanding has driven its success, The APPEA Journal 62(1) 235-244 https://doi.org/10.1071/AJ21090