Evaluation of long-term mineral trapping at the Ketzin pilot site for CO2 storage: An integrative approach using geochemical modelling and reservoir simulation

Klein, Elisa; Lucia, Marco De; Kempka, Thomas; Kühn, Michael

doi:10.1016/j.ijggc.2013.05.014

Cited by 56 publications

(43 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We wanted to show that integration of new observation data improves the quality of a static geological model significantly to better match observation data with each iteration. The presented work is a continuation from Kempka et al (2010), whereas dynamic flow coupled with geochemical simulations accounting for CO 2 trapping mechanisms are discussed in Klein et al (2013), Kempka et al (2013a) and Fischer et al (2013). Here, the industrial standard simulator ECLIPSE 100 (Schlumberger 2009) and the scientific simulator TOUGH2-MP/ECO2N (Zhang et al 2008;Pruess 2005) were applied for this unique dynamic flow simulation study.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulations of CO2 arrival times and reservoir pressure coincide with observations from the Ketzin pilot site, Germany

Kempka

Kühn

2013

Environ Earth Sci

Self Cite

View full text Add to dashboard Cite

Numerical simulations of CO 2 migration for the period June 2008-December 2011 were performed based on a unique data set including a recently revised static geological 3D model of the reservoir formation of the Ketzin pilot site in Brandenburg, Germany. We applied the industrial standard ECLIPSE 100 and scientific TOUGH2-MP simulators for this task and implemented a workflow to allow for integration of complex model geometries from the Petrel software package into TOUGH2-MP. Definition of a near-and a far-field well area allowed us to apply suitable permeability modifiers, and thus to successfully match simulation results with pressure measurements and arrival times in observation wells. Coincidence was achieved for CO 2 arrival times with deviations in the range of 5.5-15 % and pressure values in the injection well CO2 Ktzi 201/2007 and the observation well CO2 Ktzi 202/2007 with even smaller deviations. It is shown that the integration of unique operational and observation data in the workflow improves the setup of the geological model. Within such an iteration loop model uncertainties are reduced and enable advanced predictions for future reservoir behaviour with regard to pressure development and CO 2 plume migration in the storage formation at the Ketzin pilot site supporting the implementation of monitoring campaigns and guiding site operation.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical simulations of CO2 arrival times and reservoir pressure coincide with observations from the Ketzin pilot site, Germany

Kempka

Kühn

2013

Environ Earth Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…The concept of the one-way coupling was firstly introduced by Klein et al (2013). The idea is to combine, in a postprocessing approach, independent batch geochemical simulations with non-reactive flow simulations, while applying some criterion to at least ensure partial mass balance and thus compensate for the lack of feedback between chemistry and hydrodynamics.…”

Section: Methodsmentioning

confidence: 99%

“…Many potential CO 2 storage systems are located in siliciclastic sandstones, such as in Germany and more generally in northern Europe, in Rotliegend, Bundsandstein and Keuper sequences Beyer et al, 2012;Klein et al, 2013). Such geological settings are typically characterised by high salinity of the formation brines and limited reactivity of the reservoir rock, given the high proportion of silica and limited amount of faster reacting minerals such as carbonates.…”

Section: Targeted Class Of Systems and Formulation Of Hypotheses For mentioning

confidence: 99%

“…Especially to solve one of these problems, namely the estimation of the long-term, reservoir-scale mineralisation at the Ketzin pilot site (Martens et al, 2013), a simplified scheme for coupling chemistry and hydrodynamics was introduced (Klein et al, 2013;Kempka et al, 2013b). The purpose of the novel method is not to upscale the simulation grid or apply multi-grid methods, but rather to take advantage of some of the characteristics of the modelled processes, by introducing an approximation in the coupling itself.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A coupling alternative to reactive transport simulations for long-term prediction of chemical reactions in heterogeneous CO<sub>2</sub> storage systems

2015

View full text Add to dashboard Cite

Abstract. Fully coupled, multi-phase reactive transport simulations of CO 2 storage systems can be approximated by a simplified one-way coupling of hydrodynamics and reactive chemistry. The main characteristics of such systems, and hypotheses underlying the proposed alternative coupling, are (i) that the presence of CO 2 is the only driving force for chemical reactions and (ii) that its migration in the reservoir is only marginally affected by immobilisation due to chemical reactions. In the simplified coupling, the exposure time to CO 2 of each element of the hydrodynamic grid is estimated by non-reactive simulations and the reaction path of one single batch geochemical model is applied to each grid element during its exposure time. In heterogeneous settings, analytical scaling relationships provide the dependency of velocity and amount of reactions to porosity and gas saturation. The analysis of TOUGHREACT fully coupled reactive transport simulations of CO 2 injection in saline aquifer, inspired to the Ketzin pilot site (Germany), both in homogeneous and heterogeneous settings, confirms that the reaction paths predicted by fully coupled simulations in every element of the grid show a high degree of self-similarity. A threshold value for the minimum concentration of dissolved CO 2 considered chemically active is shown to mitigate the effects of the discrepancy between dissolved CO 2 migration in non-reactive and fully coupled simulations. In real life, the optimal threshold value is unknown and has to be estimated, e.g. by means of 1-D or 2-D simulations, resulting in an uncertainty ultimately due to the process de-coupling. However, such uncertainty is more than acceptable given that the alternative coupling enables using grids of the order of millions of elements, profiting from much better description of heterogeneous reservoirs at a fraction of the calculation time of fully coupled models.

show abstract

“…Numerous studies have been published in the past on sequestering CO2 [1][2][3][4][5][6][7] along with different direct and indirect methods of reducing the overall CO2 emissions. Among the CO2 sequestration methods, mineral route of carbonation, especially of alkaline earth oxide bearing rocks, has proven to be an effective means [4,[8][9][10][11][12][13]. The high compressive and tensile strength of secondary carbonate rocks [14][15][16], formed as a result of mineral trapping, suggests the possibility of using mineral carbonation to form a sustainable binder for construction.…”

Section: Introductionmentioning

confidence: 99%

Pore- and micro-structural characterization of a novel structural binder based on iron carbonation

Das

Stone

Convey

et al. 2014

Materials Characterization

View full text Add to dashboard Cite

The pore-and micro-structural features of a novel binding material based on the carbonation of waste metallic iron powder is reported in this paper. The binder contains metallic iron powder as the major ingredient, followed by additives containing silica and alumina to facilitate favorable reaction product formation. Compressive strengths sufficient for a majority of concrete applications are attained. The material pore structure is investigated primarily through mercury intrusion porosimetry whereas electron microscopy is used for microstructural characterization. Reduction in the overall porosity and the average pore size with an increase in carbonation duration from 1 day to 4 days are noticed. The pore structure features are used in predictive models for gas and moisture transport (water vapor diffusivity and moisture permeability) through the porous medium which dictates its long-term durability when used in structural applications. Comparisons of the pore structure with those of a Portland cement paste are also provided. The morphology of the reaction products in the iron-based binder, its elemental composition and the distribution of constituent elements in the microstructure are also reported.

show abstract

Evaluation of long-term mineral trapping at the Ketzin pilot site for CO2 storage: An integrative approach using geochemical modelling and reservoir simulation

Cited by 56 publications

References 32 publications

Numerical simulations of CO2 arrival times and reservoir pressure coincide with observations from the Ketzin pilot site, Germany

Numerical simulations of CO2 arrival times and reservoir pressure coincide with observations from the Ketzin pilot site, Germany

A coupling alternative to reactive transport simulations for long-term prediction of chemical reactions in heterogeneous CO<sub>2</sub> storage systems

Pore- and micro-structural characterization of a novel structural binder based on iron carbonation

Contact Info

Product

Resources

About

Evaluation of long-term mineral trapping at the Ketzin pilot site for CO2 storage: An integrative approach using geochemical modelling and reservoir simulation

Cited by 56 publications

References 32 publications

Numerical simulations of CO2 arrival times and reservoir pressure coincide with observations from the Ketzin pilot site, Germany

Numerical simulations of CO2 arrival times and reservoir pressure coincide with observations from the Ketzin pilot site, Germany

A coupling alternative to reactive transport simulations for long-term prediction of chemical reactions in heterogeneous CO&lt;sub&gt;2&lt;/sub&gt; storage systems

Pore- and micro-structural characterization of a novel structural binder based on iron carbonation

Contact Info

Product

Resources

About

A coupling alternative to reactive transport simulations for long-term prediction of chemical reactions in heterogeneous CO<sub>2</sub> storage systems