A preliminary evaluation of the CO2 storage potential in unminable coal seams of the Münster Cretaceous Basin, Germany

Kronimus, Alexander; Busch, Andreas; Alles, Sascha; Juch, Dierk; Jurisch, Anke; Littke, Ralf

doi:10.1016/j.ijggc.2008.02.007

Cited by 37 publications

(16 citation statements)

References 24 publications

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“…In uneconomical coal-bed formations, sorption of CO 2 to the coal surface is the primary sequestration mechanism identified (White et al 2005;Bachu 2007;Ross et al 2009;Kronimus et al 2008b;Faiz et al 2007b). …”

Section: Carbon Dioxide In Subsurface Environmentsmentioning

confidence: 99%

“…It is difficult to ascertain how much CO 2 is sequestered by a specific mechanism; however, estimates on coal-bed storage capacity indicate accessibility to sorption sites of less than 60% for CO 2 sequestration (Bachu 2007;Kronimus et al 2008b;Faiz et al 2007b). In the early years of sequestration in deep aquifers and reservoirs, geologic trapping of CO 2 is expected to be dominant with solubility, hydrodynamic and mineral trapping becoming increasing significant with time (Metz et al 2005;Bachu 2008;Han et al 2010a).…”

Section: Carbon Dioxide In Subsurface Environmentsmentioning

confidence: 99%

“…Although oil and gas reservoirs (Kovscek 2002;Bachu and Shaw 2003;Hovorka et al 2009;Esposito et al 2010;Zhang et al 2011) and unmineable coal seams (White et al 2005;Faiz et al 2007a;Kronimus et al 2008a) formations have been identified as potential geologic repositories for CO 2 , deep (often saline) nonpotable aquifers are preferred and are the most widely studied. Reasons include ubiquity, availability of mature technology, high storage capacities, and the potential for CO 2 conversion to carbonate minerals (Bachu and Adams 2003;Goldberg et al 2008Goldberg et al , 2010McGrail et al 2006).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review

Harvey¹,

Qafoku²,

Cantrell³

et al. 2012

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Leakage from deep storage reservoirs is a major risk factor associated with geologic sequestration of carbon dioxide (CO 2 ). Different scientific theories exist concerning the potential implications of such leakage for near-surface environments. The authors of this report reviewed the current literature on how CO 2 leakage (from storage reservoirs) would likely impact the geochemistry of near surface environments such as potable water aquifers and the vadose zone.Experimental and modeling studies highlighted the potential for both beneficial (e.g., CO 2 re-sequestration or contaminant immobilization) and deleterious (e.g., contaminant mobilization) consequences of CO 2 intrusion in these systems. Current knowledge gaps, including the role of CO 2 -induced changes in redox conditions, the influence of CO 2 influx rate, gas composition, organic matter content and microorganisms are discussed in terms of their potential influence on pertinent geochemical processes and the potential for beneficial or deleterious outcomes.Geochemical modeling was used to systematically highlight why closing these knowledge gaps are pivotal. A framework for studying and assessing consequences associated with each factor is also presented in Section 5.6. v

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Section: Carbon Dioxide In Subsurface Environmentsmentioning

confidence: 99%

Section: Carbon Dioxide In Subsurface Environmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review

Harvey¹,

Qafoku²,

Cantrell³

et al. 2012

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“…Capture of this CO 2 and its storage in deep geological formations (carbon capture and storage-CCS) is an important technology for reducing global carbon emissions and consequently for contributing to the deceleration of global warming (Energy Technology Perspectives, IEA, 2008; IPCC special report on Carbon Dioxide Capture and Storage, 2005). Large-scale storage of CO 2 is proposed both onshore and off-shore, in deep saline aquifers (Bachu and Adams, 2003;Gunter et al, 1998;Vangkilde-Pedersen et al, 2009), hydrocarbon fields (Kovscek, 2002;Zhang et al, 2011) and un-minable coal seams (Kronimus et al, 2008;White et al, 2005). Within Europe about 40% of the known storage capacity lies offshore, mainly in the North Sea basin (Implementation of Directive 2009/31/EC on the Geological Storage of Carbon Dioxide, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of a controlled sub-seabed release of CO 2 on the biogeochemistry of shallow marine sediments, their pore waters, and the overlying water column

Lichtschlag

James

Ståhl

et al. 2015

International Journal of Greenhouse Gas Control

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Please cite this article in press as: Lichtschlag, A., et al., Effect of a controlled sub-seabed release of CO 2 on the biogeochemistry of shallow marine sediments, their pore waters, and the overlying water column. Int. J. Greenhouse Gas Control (2014), http://dx.Article history: Available online xxx Keywords: Carbon capture and storage CO2 leakage Sediment biogeochemistry Release of metals Environmental impact a b s t r a c tThe potential for leakage of CO 2 from a storage reservoir into the overlying marine sediments and into the water column and the impacts on benthic ecosystems are major challenges associated with carbon capture and storage (CCS) in subseafloor reservoirs. We have conducted a field-scale controlled CO 2 release experiment in shallow, unconsolidated marine sediments, and documented the changes to the chemical composition of the sediments, their pore waters and overlying water column before, during and up to 1 year after the 37-day long CO 2 release. Increased levels of dissolved inorganic carbon (DIC) were detected in the pore waters close to the sediment-seawater interface in sediments sampled closest to the subsurface injection point within 5 weeks of the start of the CO 2 release. Highest DIC concentrations (28.8 mmol L −1 , compared to background levels of 2.4 mmol L −1 ) were observed 6 days after the injection had stopped. The high DIC pore waters have high total alkalinity, and low ı 13 C DIC values (−20‰, compared to a background value of −2‰), due to the dissolution of the injected CO 2 (ı 13 C = −26.6‰). The high DIC pore waters have enhanced concentrations of metals (including Ca, Fe, Mn) and dissolved silicon, relative to non-DIC enriched pore waters, indicating that dissolution of injected CO 2 promotes dissolution of carbonate and silicate minerals. However, in this experiment, the pore water metal concentrations did not exceed levels considered to be harmful to the environment. The spatial extent of the impact of the injected CO 2 in the sediments and pore waters was restricted to an area within 25 m of the injection point, and no impact was observed in the overlying water column. Concentrations of all pore water constituents returned to background values within 18 days after the CO 2 injection was stopped.

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“…For instance, in hydrology and hydrogeology this method is commonly used to determine mixing of waters from different origins (see Barth et al, 2003;Clark and Fritz, 1997). To date EGR, EOR and CCS have only resulted in relatively few studies applying stable isotope techniques (Assayag et al, 2009;Emberley et al, 2005;Kharaka et al, 2006;Kronimus et al, 2008;Raistrick et al, 2006;Van Bergen et al, 2005). One reason for this is the complexity of the effects of high p/T conditions as well as increased salinity of deep geochemical fluid systems that exert significant influence on the carbonate equilibrium as well as on the isotope fractionation of the carbon species.…”

Section: Introductionmentioning

confidence: 99%

Predicting δ13CDIC dynamics in CCS: A scheme based on a review of inorganic carbon chemistry under elevated pressures and temperatures

Becker

Myrttinen

Blum

et al. 2011

International Journal of Greenhouse Gas Control

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A preliminary evaluation of the CO2 storage potential in unminable coal seams of the Münster Cretaceous Basin, Germany

Cited by 37 publications

References 24 publications

Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review

Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review

Effect of a controlled sub-seabed release of CO 2 on the biogeochemistry of shallow marine sediments, their pore waters, and the overlying water column

Predicting δ13CDIC dynamics in CCS: A scheme based on a review of inorganic carbon chemistry under elevated pressures and temperatures

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