Regional study on potential CO2 geosequestration in the Collie Basin and the Southern Perth Basin of Western Australia

Varma, Sunil; Underschultz, Jim; Dance, Tess; Langford, Robert; Esterle, Joan; Dodds, Kevin J.; Gent, Dominique Van

doi:10.1016/j.marpetgeo.2008.05.001

Cited by 19 publications

(10 citation statements)

References 16 publications

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“…A number of previous studies have made preliminary assessments in the South West, summarised in [1] . An appraisal of the geology around the town of Collie, a major emissions hub, by Varma et al, 2009) [2] showed no suitable storage locations proximal to Collie, and the study was geographically extended. The study then identified the current area (Lesueur; Figure 1) for investigation and work continues at present.…”

Section: Introductionmentioning

confidence: 94%

South West Hub CCS Project in Western Australia – Characterisation of a Greenfield Site.

Stalker

Gent²

2014

Energy Procedia

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The South West Hub Project (SWH) is undergoing pre-feasibility assessment through a stage-gated program of data acquisition, managed currently by the Western Australia Department of Mines and Petroleum (WA DMP). Undergoing assessment for potential to store commercial quantities of CO 2 is an area of approximately 150 km 2 north of the town of Harvey in south west Western Australia. The emissions hub of Collie (~ 70 km to the SE) is the home to some likely users of the pore space if the site proves up.In contrast to many potential storage projects, the area under investigation had undergone only limited geological evaluation prior to this project's initiation in 2007. Therefore a program of data acquisition has had to be developed and undertaken to populate an essentially greenfield site, to provide sufficient information to make informed decisions prior to proceeding through each stage gate.Activities to date have included:• A 2D seismic survey (2011) along local roads, which enabled the placement of a stratigraphic well.• The drilling of the Harvey-1 stratigraphic well (2012) to a depth of 2920.5 m TVDSS.• Research projects have then been commissioned to utilise these new materials and provide additional site characterisation. • A small scale 2D seismic survey (December, 2013) to aid in definition of acquisition parameters for a subsequent • 3D seismic survey conducted, taking in 115 km 2 of the approximate 150 km 2 area (February -March, 2014). 5042Linda Stalker et al. / Energy Procedia 63 ( 2014 ) 5041 -5050 Results from these activities so far have not presented the project with any "show-stoppers". The key intervals of interest, the Yalgorup and Wonnerup members of the Triassic Lesueur Formation show suitable rock properties for purposes of carbon storage. Fault identification and their modeled transmissivity do not indicate extensive compartmentalization in the storage region. Whilst the key to this project is residual trapping (Wonnerup as the primary containment interval and Yalgorup as the secondary containment interval) there is improved evidence to suggest the presence of potential baffles and seals in the area to retain the CO 2 .As at mid-2014, the plan forward will include: • 3D seismic processing, interpretation and the building of a new geological model (underway mid -2014).• Drilling of three shallow wells to better characterise the upper layers (2014 -2015).• Flow testing of one of those three wells to better assess the potential baffles (2015).• Drilling of a deeper well(s) to characterise the reservoir properties off the Harvey Ridge Structure (late 2015).• Related research activities using the new materials generated from the upcoming well drilling and testing program.The recently acquired 3D seismic survey is already providing valuable information to constrain the main formations distribution and aiding in the location of the likely areas for further data acquisition. Complementary research projects are ongoing to facilitate the valuation of the site with the aim of reducing risk and unc...

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Section: Introductionmentioning

confidence: 94%

South West Hub CCS Project in Western Australia – Characterisation of a Greenfield Site.

Stalker

Gent²

2014

Energy Procedia

Self Cite

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show abstract

“…Following on from these studies, the Western Australian Department of Mines and Petroleum then went on to fund a more detailed study (Varma et al 2007) 2). Areas investigated began within a 50 km radius of the town of Collie and included the Collie Basin sandstones and the coal measures of the Cardiff Subbasin.…”

Section: Co2crc Study (2007)mentioning

confidence: 99%

“…Salinity in the formation increases from 51500 to 425000 mg/L over a 250 m depth interval within the Eneabba Formation, and the associated lack of freshwater recharge suggests that the strata have low vertical hydraulic conductivity in that area ( Figure 6). Varma et al (2007Varma et al ( , 2009) used information from nearby Lake Preston-1 well log data to work out the downhole salinity and, by inference, estimate the permeability through the rest of the formations in the region of the Harvey Ridge structure ( Figure 5). Relative changes in the values of the induction and short-normal resistivity logs, at these depths, have been interpreted in this case as an increase in formation water resistivity relative to the resistivity of the mud, and are believed to be representing lower water salinity ( Figure 5).…”

Section: Evidence Of Injectivitymentioning

confidence: 99%

“…The objective of the first part of the study was to further evaluate the storage potential, injectivity and containment security of the site previously identified by CO2CRC (Varma et al 2007, 2009). The study commenced by identifying the available data for the region.…”

Section: Schlumberger Study (2010)mentioning

confidence: 99%

“…To manage the associated risks, the project is carefully stage gated. So far, there have been two major studies looking at the Lesueur study area (Varma et al 2007;Schlumberger 2010), which describe the information the project has to date. These reports use information from more regional studies, included in the overview below.…”

Section: Introductionmentioning

confidence: 99%

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