PERTH BASIN OPERATIONS
The Perth Basin is a large basin of approximately 174,000 square kilometres that encompasses both onshore and offshore parts of south-western Western Australia. The basin extends about 1300 km from south of Perth to its northern tip offshore from Carnarvon.
Beach’s Perth Basin operations consist of the Waitsia project (operated by Mitsui E&P Australia) and Beharra Springs (operated by Beach Energy) projects.
The Beharra Springs Gas Processing Facility is a 25 TJ per day plant, processing gas from nearby wells and transporting it through the Parmelia pipeline to domestic customers in Western Australia.
Beach is working with its joint venture partner Mitsui E&P Australia (operator) to progress Waitsia Stage 2.
WAITSIA GAS PROJECT STAGE TWO
Beach Energy and its joint venture partner, Mitsui E&P Australia (operator) are excited to progress the Waitsia Stage 2 project in the Perth Basin.
The Waitsia gas field is ranked one of the largest gas fields ever discovered onshore in Australia.
Waitsia Stage 2 will involve further development of the gas field, with more wells and a new production facility capable of producing 250 TJ/day.
Significant economic benefits flow to the Mid West region from the financial investments that are being made during both construction and operating phases.
Development drilling for Waitsia Stage 2 was completed in 2022. Construction of the Waitsia gas plant is currently progressing.
In addition to domestic supply commitments, Beach will export LNG from Waitsia Stage 2 via the North West Shelf.
For more information, visit the Mitsui E&P Australia website:
PERTH BASIN EXPLORATION
Beach is undertaking an operated gas exploration program in the Perth Basin which commenced in April 2023.
The exploration campaign has already yielded a number of discoveries.
For up-to-date information on the campaign, please refer to Beach’s ASX disclosure reporting.
ACTIVITIES IN MID-WEST WA
Beach Energy is planning to undertake seismic surveys and drilling in the north Perth Basin, around 40 kilometres south east of Dongara, over the next few years.
The aim of these surveys is to identify natural gas reserves within our existing exploration permits and production licenses. The data collected will be used to inform future exploration activities in the area which may lead to natural gas production activities over the next 20 years.
Previous activity information sheets
Geology OF THE PERTH BASIN
The Perth basin is a Silurian to Recent basin with a complex structural history and at least seven major basin phases. The basin features several deep depocentres with a maximum sediment thickness of 15000m. Perth Basin strata feature a wide range of depositional environments including alluvial, fluvial, glacially-influenced, lacustrine, deltaic and marine.
To the east the basin is bounded by the Darling Fault which is a major crustal-scale feature separating Archean-Proterozoic basement of the Yilgarn Craton from the Perth Basin sedimentary sequences. In the onshore regions most commercial fields produce from Permian-aged sandstone reservoirs although time-equivalent carbonate facies also form reservoirs in places.
Oil is generally thought to be sourced by marine shales of the Early Triassic Kockatea Formation whilst gas is sourced from multiple carbonaceous shales and coaly sequences of Permian, Triassic and Jurassic age. Two of the major reservoir units are the Dongara Sandstone (oil and gas) and the Kingia Sandstone (gas).
- Safety and environmental sustainability are priorities for Beach, and only proven technologies are used in our operations
- Beach does not undertake any fracture stimulation (fracking) activities in the Perth Basin
- Exploration in the Perth Basin commenced in the late 1940s
- More than 200 wells have been drilled onshore in the Perth Basin since that time
If you have any questions regarding our program in the Perth Basin, please contact:
Ph: 1800 797 011
For more information on the petroleum industry regulatory processes in Western Australia please visit: