RECENT CONTRIBUTIONS TO PALAEOZOIC GEOLOGY IN THE SOUTH CANNING BASIN, WESTERN AUSTRALIA

1966 ◽  
Vol 6 (1) ◽  
pp. 105
Author(s):  
W. J. Koop
Keyword(s):  
Oil And Gas ◽  
Distinct Pattern ◽  
Lower Permian ◽  
The South ◽  
Middle Ordovician ◽  
Oil And Gas Exploration ◽  
Canning Basin ◽  
Porous Sandstone ◽  
Continental Glaciation ◽  
Marine Basin

Regional aeromagnetic surveys of the interior Canning Basin, completed in 1964, showed a distinct pattern of deep sub-basins separated by relatively shallow platforms south of the Broome Platform. Seismic work on the margins of two of these basins-the Parda and Kidson Sub-basins--resulted in three drill sites. In 1965 WAPET drilled Sahara No. 1 in the Kidson Basin (suspended T.D. 6,956 feet in salt); Parda No. I near the southern margin of the Broome Platform (T.D. 6,256 feet in Basement); and Willara No. 1 in the Parda Basin (T.D. 12,806 feet in Ordovician). This paper is a preliminary report of the section encountered in these three wells.No commercial quantities of oil or gas were encountered in the recent wells but they have added significantly to our knowledge of the South Canning. The three major contributions to our stratigraphic knowledge are:The Ordovician thickens from about 2,000 feet to over 6,500 feet basinward from the Broome Platform (Parda No. 1) southward to the Parda Basin (Willara No. 1). This demonstrates that the Parda Basin was a depositional basin (mainly shale) during the Ordovician. An oil show was noted in the Goldwyer shale unit in Parda No. 1.A Redbed-Evaporite sequence with major amounts of rock salt occurs between the Middle Ordovician and the 1liddie Devonian. This sequence has not been previously encountered in the Canning Basin.The Sakmarian Grant Formation of the Lower Permian which is typically glacial and fluvioglacial includes an upper marine shaly member in two of the recent wells (Sahara No. 1 and Willara No. 1). It is suggested that an arm of the sea extended across large portions of the South Canning while adjacent areas were subjected to continental glaciation. A small hydrocarbon show was recorded in the Upper Grant in Willara No. 1.The significance of these drilling results to oil and gas exploration can be summarised as:A major Ordovician marine basin with rapid thickening and carbonate-shale facies changes in the South Canning presents attractive hydrocarbon prospects.The presence of widespread evaporites as an indicator of restricted marine conditions and as a seal to prevent the escape of hydrocarbons is a favourable factor.The presence of a marine shaly unit with porous sandstone beds in the Permian Grant Formation presents an additional shallow drilling target in the South Canning, especially in the light of the show encountered in Willara No. 1.

The Log Interpretation Analysis of the Block A in the South of the Fergana Basin

2014 ◽  
Vol 962-965 ◽  
pp. 397-400
Author(s):  
Chao Li ◽  
Jin Gong Zhang ◽  
Jiang Min Du ◽  
Wen Ying Liu ◽  
Qiang Hong Liu ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Formation Pressure ◽  
The South ◽  
Resource Potential ◽  
Oil And Gas Exploration ◽  
Related Data ◽  
Testing Data ◽  
Log Interpretation ◽  
Exploration Area ◽  
Exploration And Development

Fergana Basin, Central Asia's oldest oil and gas exploration area, reached an output of approximately 1.5 million tons per year in 1950s.【1,2】. Even after years of exploration and development, there is still a great resource potential【3】The exploration of block A in the south of the Fergana basin was started in 1930s suspended when the USSR collapsed. It was resumed in 2011 after it was acquired by company Z. There are some problems for the log interpretation such as the lack of related data, the low formation pressure caused by excessive exploration,. These problems cause the decline in terms of similarity between the log interpretation and the testing data. Based on the above issues, this paper studies the analysis of the problems and put forward reasonable proposals to the next step of the work to provide a sound basis for further exploration.

Petroleum source rocks of Western Australia

2018 ◽  
Vol 58 (1) ◽  
pp. 282 ◽  
Author(s):  
K. Ameed R. Ghori
Keyword(s):  
Western Australia ◽  
Oil And Gas ◽  
Source Rocks ◽  
Lower Permian ◽  
Burial History ◽  
Canning Basin ◽  
Petroleum Systems ◽  
Northern Carnarvon Basin ◽  
Coal Measures ◽  
Carnarvon Basin

Petroleum geochemical analysis of samples from the Canning, Carnarvon, Officer and Perth basins identified several formations with source potential, the: • Triassic Locker Shale and Jurassic Dingo Claystone of the Northern Carnarvon Basin; • Permian Irwin River Coal Measures and Carynginia Formation, Triassic Kockatea Shale and Jurassic Cattamarra Coal Measures of the Perth Basin; • Ordovician Goldwyer and Bongabinni formations, Devonian Gogo Formation and Lower Carboniferous Laurel Formation of the Canning Basin; • Devonian Gneudna Formation of the Gascoyne Platform and the Lower Permian Wooramel and Byro groups of the Merlinleigh Sub-basin of the Southern Carnarvon Basin; and • Neoproterozoic Brown, Hussar, Kanpa and Steptoe formations of the Officer Basin. Burial history and geothermal basin modelling was undertaken using input parameters from geochemical analyses of rock samples, produced oil, organic petrology, apatite fission track analysis (AFTA), heat flows, subsurface temperatures and other exploration data compiled by the Geological Survey of Western Australia (GSWA). Of these basins, the Canning, Carnarvon, and Perth basins are currently producing oil and gas, whereas the Southern Carnarvon and Officer basins have no commercial petroleum discovery yet, but they do have source, reservoir, seal and petroleum shows indicating the presence of petroleum systems. The Carnarvon Basin contains the richest identified petroleum source rocks, followed by the Perth and Canning basins. Production in the Carnarvon Basin is predominantly gas and oil, the Perth Basin is gas-condensate and the Canning Basin is oil dominated, demonstrating the variations in source rock type and maturity across the state. GSWA is continuously adding new data to assess petroleum systems and prospectivity of these and other basins in Western Australia.

THE COOPER BASIN NATIVE TITLE AGREEMENTS—AN EXPLORER’S PERSPECTIVE

2002 ◽  
Vol 42 (1) ◽  
pp. 711
Author(s):  
N.W. Martin
Keyword(s):  
Oil And Gas ◽  
Petroleum Exploration ◽  
Australian Government ◽  
The South ◽  
New Era ◽  
Native Title ◽  
Oil And Gas Exploration ◽  
Cooper Basin

On 22 October 2001 in Adelaide, the successful bidders for the 1998 First Round Cooper Basin Acreage Release, the South Australian Government, and various native title claimant groups completed the signing of historic and long awaited native title agreements. A few days later, the Petroleum Exploration Licences (PEL) were issued in respect of the blocks covered by those agreements, and so commenced a new era of oil and gas exploration in South Australia.This paper examines the process that led to the finalisation of negotiations and the signing of the agreements, from the perspective of one of the exploration companies that participated in the negotiations.

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