Gas–water–rock interactions in sedimentary basins: CO2 sequestration in the Frio Formation, Texas, USA

Kharaka, Yousif K.; Cole, David R.; Thordsen, James J.; Kakouros, Evangelos; Nance, H.S.

doi:10.1016/j.gexplo.2005.11.077

Cited by 105 publications

(71 citation statements)

References 7 publications

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“…These solutions can be totally inorganic or they can contain small organic species which affect the formation and persistence of ACC (13)(14)(15)(16)(17)(18)(19)(20). Increasing interest in CO 2 sequestration has led to proposals and pilot projects in which large plumes of supercritical carbon dioxide would be introduced into deep saline aquifers (21)(22)(23)(24)(25). ACC may be produced as an initial reaction product between the CO 2 and the aqueous phase, with mineral surfaces and small pores acting as possible nucleation sites (26).…”

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confidence: 99%

Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate

Radha

Forbes

Killian

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

420

449

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Amorphous calcium carbonate (ACC) is a metastable phase often observed during low temperature inorganic synthesis and biomineralization. ACC transforms with aging or heating into a less hydrated form, and with time crystallizes to calcite or aragonite. The energetics of transformation and crystallization of synthetic and biogenic (extracted from California purple sea urchin larval spicules, Strongylocentrotus purpuratus) ACC were studied using isothermal acid solution calorimetry and differential scanning calorimetry. Transformation and crystallization of ACC can follow an energetically downhill sequence: more metastable hydrated ACC → less metastable hydrated ACC ⇒ anhydrous ACC ∼ biogenic anhydrous ACC ⇒ vaterite → aragonite → calcite. In a given reaction sequence, not all these phases need to occur. The transformations involve a series of ordering, dehydration, and crystallization processes, each lowering the enthalpy (and free energy) of the system, with crystallization of the dehydrated amorphous material lowering the enthalpy the most. ACC is much more metastable with respect to calcite than the crystalline polymorphs vaterite or aragonite. The anhydrous ACC is less metastable than the hydrated, implying that the structural reorganization during dehydration is exothermic and irreversible. Dehydrated synthetic and anhydrous biogenic ACC are similar in enthalpy. The transformation sequence observed in biomineralization could be mainly energetically driven; the first phase deposited is hydrated ACC, which then converts to anhydrous ACC, and finally crystallizes to calcite. The initial formation of ACC may be a first step in the precipitation of calcite under a wide variety of conditions, including geological CO 2 sequestration. amorphous calcium carbonate (ACC) | calorimetry | crystallization enthalpy | sea urchin larval spicules | synthetic and biogenic ACC

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confidence: 99%

Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate

Radha

Forbes

Killian

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

420

449

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“…The potential for heavy metal mobilisation via leaking CO 2 has been proposed by several authors (e.g. Kharaka et al 2006) though, as yet, little direct evidence from analogue systems has been obtained. It is also important to consider the impact of potential environmental impacts resulting from impurities (such as H 2 S, SO 2 and NOx) that may be present in leaking CO 2 .…”

Section: Insert Tablementioning

confidence: 99%

Environmental Issues in the Geological Disposal of Carbon Dioxide and Radioactive Waste

West

Shaw

Pearce

2011

Advances in Global Change Research

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A comparative assessment of the post-closure environmental issues for the geological disposal of carbon dioxide (CO 2 ) and radioactive waste is made in this chapter.Several criteria are used: the characteristics of radioactive waste and CO 2 ; their potential environmental impacts; an assessment of the hazards arising from radioactive waste and CO 2 ; and monitoring of their environmental impacts. There are several differences in the way that the long term safety of the disposal of radioactive waste and CO 2 is regulated and evaluated. While the regulatory procedures relating to the development of a facility for the disposal of radioactive waste in many countries with nuclear power programmes are well defined having evolved over several decades, those relating to CO 2 disposal are less well developed. The results of this assessment show that, despite key differences, many of the approaches addressing environmental issues are similar. Additionally, much can be learnt from the radioactive waste disposal experience which will be particularly relevant to the assessments of site performance for CO 2 within a regulatory framework, particularly in the methods and approaches to long term site performance assessment.

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“…These interactions are highly reservoir specific and cannot easily be generalized [8] [9]. Injected CO 2 dissolved in formation water to produce carbonic acid which will react with the reservoir rock [10] [11] [12]. The porosity and permeability of the reservoir [13] [14] [15] [16] [17], the wettability of the rock surface and the characteristics of the crude oil will be changed by the reaction between carbonic acid and the rock [18] [19], which will affect the efficiency of CO 2 flooding and geological sequestration of CO 2 [20] [21] [22].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of CO<sub>2</sub>-Water-Rock Interactions during CO<sub>2</sub> Flooding in Carbonate Reservoir

Xiao¹,

Li²,

Lin³

2017

OJOGas

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Injecting CO 2 into underground reservoir to displace oil is a viable means of reducing greenhouse gas emission to the atmosphere and enhancing oil recovery. To evaluate the effect of CO 2 -water-rock interactions on the characteristics of carbonate reservoir at high pressure, the mineralogy of calcite, the ion concentration in the reacted solution, the surface texture of calcite, the permeability of calcite after reacted with injected CO 2 and deionized water was investigated by X-ray diffraction (XRD), inductive coupled plasma-atomic emission spectrometry (ICP-AES), scanning electronic microscope (SEM), and sand-packed model at pressure of 5.0 MPa. The results show that the mineral dissolution of calcite would occur when interacting with injected CO 2 and water. The mineral dissolution of calcite caused the change of surface texture of calcite and increase in

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Gas–water–rock interactions in sedimentary basins: CO2 sequestration in the Frio Formation, Texas, USA

Cited by 105 publications

References 7 publications

Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate

Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate

Environmental Issues in the Geological Disposal of Carbon Dioxide and Radioactive Waste

Experimental Investigation of CO<sub>2</sub>-Water-Rock Interactions during CO<sub>2</sub> Flooding in Carbonate Reservoir

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Gas–water–rock interactions in sedimentary basins: CO2 sequestration in the Frio Formation, Texas, USA

Cited by 105 publications

References 7 publications

Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate

Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate

Environmental Issues in the Geological Disposal of Carbon Dioxide and Radioactive Waste

Experimental Investigation of CO&lt;sub&gt;2&lt;/sub&gt;-Water-Rock Interactions during CO&lt;sub&gt;2&lt;/sub&gt; Flooding in Carbonate Reservoir

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Experimental Investigation of CO<sub>2</sub>-Water-Rock Interactions during CO<sub>2</sub> Flooding in Carbonate Reservoir