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

Stalker, Linda; Gent, Dominique Van

doi:10.1016/j.egypro.2014.11.534

Cited by 6 publications

(2 citation statements)

References 4 publications

(6 reference statements)

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“…Previous seismic surveys and analyses of data from four wells (Harvey-1, -2, -3 and -4) drilled for the SW Hub project between 2011 and 2015 (Stelfox, 2017) were supported by a series of research projects (Stalker et al, 2014;Stalker and Van Gent, 2018) and new data from the ISL OB-1 well to provide more detail on the geology of the In-Situ Lab. Harvey-2 was drilled by the SW Hub in the vicinity of the large F10 fault as a data well for the geological characterisation beyond eastern edge of the storage complex.…”

Section: Geological Settingmentioning

confidence: 99%

A controlled CO2 release experiment in a fault zone at the In-Situ Laboratory in Western Australia

Michael

Avijegon²,

Ricard

et al. 2020

International Journal of Greenhouse Gas Control

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A controlled-release test at the In-Situ Laboratory Project in Western Australia injected 38 tonnes of gaseous CO2 between 336-342 m depth in a fault zone, and the gas was monitored by a wide range of downhole and surface monitoring technologies. Injection of CO2 at this depth fills the gap between shallow release (<25 m) and storage (>600 m) field trials. The main objectives of the controlled-release test were to assess the monitorability of shallow CO2 accumulations, and to investigate the impacts of a fault zone on CO2 migration. CO2 arrival was detected by distributed temperature sensing at the monitoring well (7 m away) after approximately 1.5 days and an injection volume of 5 tonnes. The CO2 plume was detected also by borehole seismic and electric resistivity imaging. The detection of significantly less than 38 tonnes of CO2 in the shallow subsurface demonstrates rapid and sensitive monitorability of potential leaks in the overburden of a commercial-scale storage project, prior to reaching shallow groundwater, soil zones or the atmosphere.Observations suggest that the fault zone did not alter the CO2 migration along bedding at the scale and depth of the test. Contrary to model predictions, no vertical CO2 migration was detected beyond the perforated injection interval. CO2 and formation water escaped to the surface through the monitoring well at the end of the experiment due to unexpected damage to the well's fibreglass casing. The well was successfully remediated without impact to the environment and the site is ready for future experiments.

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Section: Geological Settingmentioning

confidence: 99%

A controlled CO2 release experiment in a fault zone at the In-Situ Laboratory in Western Australia

Michael

Avijegon²,

Ricard

et al. 2020

International Journal of Greenhouse Gas Control

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“…The SWH proponent has been the Western Australian Department of Mines, Industry Regulation and Safety (DMIRS) since the earliest data gathering commenced in the mid-2000s. The investigation of a greenfield area in the Southern Perth Basin for potential commercial scale storage for emitters in the Perth and southwest region resulted in drilling of four wells, Harvey-1, -2, -3 and -4 [1] & [2] (Figure 1). The wells were located after a series of seismic surveys were conducted to understand the geology and structure in the area of interest.…”

Section: Introductionmentioning

confidence: 99%

Lessons Learned: The First In-Situ Laboratory Fault Injection Test

et al. 2021

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The CSIRO In-Situ Laboratory has been a world first injection of CO2 into a large faulted zone at depth. A total of 38 tonnes of CO2 was injected into the F10 fault zone at approximately 330 m depth and the process monitored in detail. The site uses a well, Harvey-2, in SW Western Australia (the South West Hub CCS Project area). The top 400 m section of Harvey-2 was available for injection and instrumentation. An observation well, ISL OB-1 (400 m depth) was drilled 7 m to the north east of Harvey-2. ISL OB-1 well was cased with fibreglass to provide greater monitoring options. The CSIRO In-Situ Laboratory was designed to integrate existing facilities and infrastructure from the South West Hub CCS Project managed by the West Australian Department of Mines, Industry Regulation and Safety. While new equipment was deployed for this specific project, the site facilities were complemented by a range of mobile deployable equipment from the National Geosequestration Laboratory (NGL). The geology of the area investigated poses interesting challenges: a large fault (F10) is estimated to have up to 1000 m throw overall, the presence of packages of paleosols rather than a contiguous mudstone seal, and a 1500 m vertical thickness of Triassic sandstone as the potential commercial storage interval. This unique site provides abundant opportunities for testing more challenging geological environments for carbon storage than at other sites. While details of this first project are described elsewhere, lessons were learned during the development and execution of the project. A rigorous risk register was developed to manage project risk, but not all events encountered were foreseen. This paper describes some of the challenges encountered and the team's response. Relocation of the project site due to changes in landholder ownership) and other sensitivities resulted in the need for rapid replanning of activities at short notice resulting in the development of the site at Harvey-2. The relocation allowed other research questions to be addressed through new activities, such as the ability to consider a shallow/controlled release experiment in an extensive fault zone, but this replanning did cause some timing stress. The first test at the In-Situ Laboratory was reconfigured to address some of those knowledge gaps that shallow/controlled release experiments had yet to address. Novel approaches to drilling and completing the monitoring well also threw up unanticipated difficulties. Loss of containment from the wellbore also posed significant challenges, and the team's response to this unintended release of gas and water from the monitoring well at the

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An object-based modeling and sensitivity analysis study in support of CO2 storage in deep saline aquifers at the Shenhua site, Ordos Basin

Nguyen

Zhang

et al. 2017

Geomech. Geophys. Geo-energ. Geo-resour.

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

Cited by 6 publications

References 4 publications

A controlled CO2 release experiment in a fault zone at the In-Situ Laboratory in Western Australia

A controlled CO2 release experiment in a fault zone at the In-Situ Laboratory in Western Australia

Lessons Learned: The First In-Situ Laboratory Fault Injection Test

An object-based modeling and sensitivity analysis study in support of CO2 storage in deep saline aquifers at the Shenhua site, Ordos Basin

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