About Cooper Basin Australia

The Cooper Basin is the location of the most important on-shore petroleum and natural gas deposits in Australia The oil and gas window is located 1,250 m below the surface[1] and was originally discovered in the 1960s (although there are larger oil and gas deposits off-shore). The first commercial discovery of gas occurred in 1963.[1] It includes Australia’s largest onshore oil field, the Jackson oil field.[2] This field was discovered in 1981. Pipelines transport gas to the major markets of BrisbaneAdelaide and Sydney. Overall about 1,800 petroleum wells have been drilled.[1]

The largest producer in the basin is Santos Limited with its main production facility at Moomba, South Australia. The oil and gas deposits in the Cooper Basin tend to be fairly small and fragmentary. Overall there are 160 gas fields and 75 oil fields in production containing about 630 producing gas wells and more than 340 producing oil wells.[3] There are many small listed companies exploring for additional deposits in the region. Some of these companies are Austin Exploration Limited, Cooper Energy, Beach Petroleum LimitedSenex EnergyStrike Energy, Acer Energy, Magellan, Impress Energy and many others.*

* source wikipedia.com


cooper basin australia

* Details

Age Late Carboniferous – Middle triassic
Area in South Australia 35 000 km2 (13 510 sq. miles)
Depth to target zones 1250 – 3670 m
Thickness 2500 m
Hydrocarbon shows Widespread over 8 formations
First commercial discovery 1963 gas (Gidgealpa 2)
Production (12 months to December 2005) 67.09 PJ sales gas, 168 kt LPG, 263.08 ML condensate, 609.52 ML crude oil, 295.21 kt ethane (Cooper and Eromanga Basins)
Basin type Intracratonic
Depositional setting Non-marine
Reservoirs B Fluvial, deltaic, shoreface sandstones
Regional structure Faulted anticlines
Seals Lacustrine shales, coal
Source rocks Carbonaceous shale, thick (up to 30 m) coal
Depth to oil/gas window 1250 m (oil)
Number of wells ~1800
Seismic line km 75 829 2D , 8 882 3D km2

**Source Govt of South Australia

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Santos takes $US690m hit due to oil prices

Most of the impairments will be in the form of a writedown on the value of its giant Gladstone LNG project in Queensland, as well as its oil and gas assets in the Cooper Basin and some assets … an impairment on its Australia Pacific LNG project …

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Santos to Take $690 Million Impairment Hit for 1st Half

Santos said it expected to recognize an impairment of the GLNG liquefied natural gas project in Queensland of about US$870 million, mainly due to lower oil prices … efficiency at its assets in Australia’s Cooper Basin that would mean a positive net …

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Santos revaluations tell the story of Australia's unique energy crisis

Those impairments result from an arguably belated decision to redraft the forward oil price deck to reflect the very broad … The other big swing factor for Cooper Basin valuations is, of course, the domestic gas price that it might earn.

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$880m in impairments deflating for Santos

Oil and gas producer Santos is set to record its fourth … had led to an after-tax write-back of about $US330m to the company’s onshore Cooper Basin assets in central Australia, despite their valuation also having been hit by the lower oil price …

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Senex Strikes Oil In Australia’s Cooper Basin

Senex Energy Ltd. has struck oil in the Birkhead sands of the South Australian Cooper Basin, the company said in a news release July 25. The company said its Marauder-1 well, located in PEL 104, encountered good oil shows within Birkhead sands with …

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Origin Energy Flags Further Impairment Hit — Update

The sale process is progressing well, Origin added. Lattice’s portfolio includes Origin’s stakes in an oil-and-gas venture in the Cooper Basin in South Australia, gas operations in Western Australia, Victoria and New South Wales states and exploration …

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Origin Energy flags additional $1.2bn liquified natural gas writedown

That operation, Australia Pacific … in the forecast oil price from $US71 a barrel to $US67 from 2022. Origin also expects a $357 million post-tax hit on its $1.5 billion Lattice Energy ­assets, made up of stakes in Cooper Basin, Otway, BassGas and …

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Beach Energy to ramp up spending in Cooper Basin drilling

The mid-cap oil and gas producer, which has been examining a potential … it is currently assuming and queried what the reinvigorated focus on the Cooper Basin in South Australia’s north might mean for Beach’s acquisition ambitions. Beach has also been …

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Senex makes oil discovery in Cooper basin’s western flank

Senex Energy Ltd., Brisbane, has made an oil discovery on the western flank of South Australia’s Cooper basin, with its Marauder-1 exploration well, which flowed 655 b/d of oil on a drillstem test. The Marauder-1 well was drilled in EX PEL 104 about 2 km …

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Senex makes Birkhead find

Brisbane-based Senex Energy has made an oil discovery on the western flank of South Australia’s onshore Cooper basin. The Marauder-1 exploration well hit oil shows within well developed Birkhead sands in PEL 104, with logs indicating net pay of up to 8.6 …

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