Developing a monitoring and verification plan with reference to the Australian Otway CO2 pilot project

Dodds, Kevin J.; Sherlock, Donald H.

doi:10.4043/19202-ms

Cited by 6 publications

(6 citation statements)

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“…Th e only condition is that we detail in Dodds et al (2009). In the current phase (Phase I of the project), the CO 2 /CH 4 mix is injected into the depleted Naylor gas fi eld.…”

Section: Seismic Monitoring Program At Otwaymentioning

confidence: 99%

Time-lapse seismic monitoring of CO2 injection into a depleted gas reservoir—Naylor Field, Australia

et al. 2010

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The CO2CRC Otway Project conducted under the Australian Cooperative Research Centre for Greenhouse Gas Technologies is the first of its kind, where [Formula: see text] is injected into a depleted gas reservoir. The use of depleted gas fields for [Formula: see text] storage and or enhanced gas recovery is likely to become globally adopted. Therefore, the CO2CRC project provides important experience for monitoring under these conditions. However, injection of [Formula: see text] into a depleted gas reservoir (residual gas saturation zone in this case) does not present a favorable condition for the application of geophysical monitoring techniques, and particularly seismic methods.

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“…Th e only condition is that we detail in Dodds et al (2009). In the current phase (Phase I of the project), the CO 2 /CH 4 mix is injected into the depleted Naylor gas fi eld.…”

Section: Seismic Monitoring Program At Otwaymentioning

confidence: 99%

Time-lapse seismic monitoring of CO2 injection into a depleted gas reservoir—Naylor Field, Australia

et al. 2010

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“…Injection of CO 2 into geological formations, as a partial solution to the global increase of atmospheric CO 2 concentrations, is already underway in different parts of the world. On-shore storage and pilot sites include Ketzin, Germany (Norden et al 2010); Otway Basin, Australia (Dodds et al 2009); Illinois Basin, USA (Frailey and Finley 2008;Barnes et al 2009;Finley et al 2011); Frio, Texas, USA (Hovorka et al 2006;Kharaka et al 2009); Michigan Basin, USA (Bohnhoff et al 2010); Weyburn, Canada (Riding et al 2003;Riding and Rochelle 2009;Rostron and Whittaker 2011); Nagaoka, Japan (Kikuta et al 2005;Sato et al 2009); West Virginia, USA (Calderon et al 2010) and In Salah, Algeria (Riddiford et al 2005). CO 2 can be injected into deep saline aquifers that hold no economic value or as part of enhanced oil recovery (EOR) or enhanced gas recovery (EGR) operations.…”

Section: Introductionmentioning

confidence: 99%

Geochemical Implications of Brine Leakage into Freshwater Aquifers

2013

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CO(2) injection into deep saline formations as a way to mitigate climate change raises concerns that leakage of saline waters from the injection formations will impact water quality of overlying aquifers, especially underground sources of drinking water (USDWs). This paper aims to characterize the geochemical composition of deep brines, with a focus on constituents that pose a human health risk and are regulated by the U.S. Environmental Protection Agency (USEPA). A statistical analysis of the NATCARB brine database, combined with simple mixing model calculations, show total dissolved solids and concentrations of chloride, boron, arsenic, sulfate, nitrate, iron and manganese may exceed plant tolerance or regulatory levels. Twelve agricultural crops evaluated for decreased productivity in the event of brine leakage would experience some yield reduction due to increased TDS at brine-USDW ratios of < 0.1, and a 50% yield reduction at < 0.2 brine-USDW ratio. A brine-USDW ratio as low as 0.004 may result in yield reduction in the most sensitive crops. The USEPA TDS secondary standard is exceeded at a brine fraction of approximately 0.002. To our knowledge, this is the first study to consider agricultural impacts of brine leakage, even though agricultural withdrawals of groundwater in the United States are almost three times higher than public and domestic withdrawals.

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“…The Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) is currently conducting a CO 2 geo-sequestration pilot study in the Otway Basin, onshore Victoria, Australia. Extensive TL seismic monitoring is an essential part of the monitoring and verification program of the Otway Project (Dodds et al, 2009). It includes several repeated 3D surface seismic surveys acquired from 2007-2010, and a large borehole seismic experiment (repeated zero-offset/offset VSP and 4D VSP).…”

Section: Introductionmentioning

confidence: 99%

Ground Roll Repeatability Analysis - CO2CRC Otway Project Case Study

Kinkela¹,

Pevzner²,

Urošević³

2011

73rd EAGE Conference and Exhibition Incorporating SPE EUROPEC 2011

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Time-lapse (TL) seismic is an essential tool for the monitoring of changes in reservoir conditions induced by reservoir production, reservoir stimulation and more recently CO2 sequestration. The Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) is currently conducting a carbon dioxide geo-sequestration pilot study in the Otway Basin, onshore Victoria, Australia. An extensive TL seismic monitoring is a part of monitoring and verification program of the project. Being a well-developed methodology for offshore applications, time-lapse seismic is also gaining popularity as an onshore reservoir monitoring technique. However its onshore use is limited by issues of seismic repeatability. This is primarily attributed to the higher near-surface variability as compared to marine seismic. Analysis of several repeated Otway 2D surveys show that different frequency bands have different repeatability. Low frequencies (< 30 Hz), contaminated by the ground roll noise, are characterised by particularly poor repeatability. In this paper we analyse three repeated 2D surveys obtained with same geometry but different sources and near-surface conditions in order to investigate ground roll repeatability by evaluation of surface waves phase velocity spectra.

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Developing a monitoring and verification plan with reference to the Australian Otway CO2 pilot project

Cited by 6 publications

References 1 publication

Time-lapse seismic monitoring of CO2 injection into a depleted gas reservoir—Naylor Field, Australia

Time-lapse seismic monitoring of CO2 injection into a depleted gas reservoir—Naylor Field, Australia

Geochemical Implications of Brine Leakage into Freshwater Aquifers

Ground Roll Repeatability Analysis - CO2CRC Otway Project Case Study

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