Monitoring petrophysical, mineralogical, geochemical and microbiological effects of CO2 exposure — Results of long-term experiments under in situ conditions

Wandrey, Maren; Fischer, Sebastian; Zemke, Kornelia; Liebscher, Axel; Scherf, A. K.; Vieth‐Hillebrand, Andrea; Zettlitzer, Michael; Würdemann, Hilke

doi:10.1016/j.egypro.2011.02.295

Cited by 29 publications

(19 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our finding of low Fe-reducing activity is supported by results from a microbial community study in the same sandstones using the 16S rDNA fingerprinting method (Wandrey et al 2011a(Wandrey et al , 2011b. According to these studies, the microbial abundance in the rock material is very low and only small amounts of DNA could be extracted.…”

Section: Ongoing Iron and Sulphur Cyclingsupporting

confidence: 68%

Mineralogical and geochemical analysis of Fe-phases in drill-cores from the Triassic Stuttgart Formation at Ketzin CO2 storage site before CO2 arrival

et al. 2017

Self Cite

View full text Add to dashboard Cite

Reactive iron (Fe) oxides and sheet silicatebound Fe in reservoir rocks may affect the subsurface storage of CO 2 through several processes by changing the capacity to buffer the acidification by CO 2 and the permeability of the reservoir rock: (1) the reduction of threevalent Fe in anoxic environments can lead to an increase in pH, (2) under sulphidic conditions, Fe may drive sulphur cycling and lead to the formation of pyrite, and (3) the leaching of Fe from sheet silicates may affect silicate diagenesis. In order to evaluate the importance of Fe-reduction on the CO 2 reservoir, we analysed the Fe geochemistry in drill-cores from the Triassic Stuttgart Formation (Schilfsandstein) recovered from the monitoring well at the CO 2 test injection site near Ketzin, Germany.The reservoir rock is a porous, poorly to moderately cohesive fluvial sandstone containing up to 2-4 wt% reactive Fe. Based on a sequential extraction, most Fe falls into the dithionite-extractable Fe-fraction and Fe bound to sheet silicates, whereby some Fe in the dithionite-extractable Fe-fraction may have been leached from illite and smectite. Illite and smectite were detected in core samples by X-ray diffraction and confirmed as the main Fe-containing mineral phases by X-ray absorption spectroscopy. Chlorite is also present, but likely does not contribute much to the high amount of Fe in the silicate-bound fraction. The organic carbon content of the reservoir rock is extremely low (\0.3 wt%), thus likely limiting microbial Fe-reduction or sulphate reduction despite relatively high concentrations of reactive Fe-mineral phases in the reservoir rock and sulphate in the reservoir fluid. Both processes could, however, be fuelled by organic matter that is mobilized by This article is part of a Topical Collection in Environmental Earth Sciences on ''Subsurface Energy storage'', guest-edited by

show abstract

Section: Ongoing Iron and Sulphur Cyclingsupporting

confidence: 68%

Mineralogical and geochemical analysis of Fe-phases in drill-cores from the Triassic Stuttgart Formation at Ketzin CO2 storage site before CO2 arrival

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Sulfate-reducing bacteria and archaea were not detected in sandstone material. Mineral dissolution due to CO 2 exposure caused an increase in porosities during long-term experiments [96]. However, after 24 months, porosities again decreased due to precipitation [30].…”

Section: Microbial Populations In Potential Co 2 Storage Sitesmentioning

confidence: 98%

Relevance of Deep-Subsurface Microbiology for Underground Gas Storage and Geothermal Energy Production

Gniese

Bombach

Rakoczy

et al. 2013

Advances in Biochemical Engineering/Biotechnology

View full text Add to dashboard Cite

This chapter gives the reader an introduction into the microbiology of deep geological systems with a special focus on potential geobiotechnological applications and respective risk assessments. It has been known for decades that microbial activity is responsible for the degradation or conversion of hydrocarbons in oil, gas, and coal reservoirs. These processes occur in the absence of oxygen, a typical characteristic of such deep ecosystems. The understanding of the responsible microbial processes and their environmental regulation is not only of great scientific interest. It also has substantial economic and social relevance, inasmuch as these processes directly or indirectly affect the quantity and quality of the stored oil or gas. As outlined in the following chapter, in addition to the conventional hydrocarbons, new interest in such deep subsurface systems is rising for different technological developments. These are introduced together with related geomicrobiological topics. The capture and long-termed storage of large amounts of carbon dioxide, carbon capture and storage (CCS), for example, in depleted oil and gas reservoirs, is considered to be an important options to mitigate greenhouse gas emissions and global warming. On the other hand, the increasing contribution of energy from natural and renewable sources, such as wind, solar, geothermal energy, or biogas production leads to an increasing interest in underground storage of renewable energies. Energy carriers, that is, biogas, methane, or hydrogen, are often produced in a nonconstant manner and renewable energy may be produced at some distance from the place where it is needed. Therefore, storing the energy after its conversion to methane or hydrogen in porous reservoirs or salt caverns is extensively discussed. All these developments create new research fields and challenges for microbiologists and geobiotechnologists. As a basis for respective future work, we introduce the three major topics, that is, CCS, underground storage of gases from renewable energy production, and the production of geothermal energy, and summarize the current stat of knowledge about related geomicrobiological and geobiotechnological aspects in this chapter. Finally, recommendations are made for future research.

show abstract

“…Evidence of CBR interaction include reaction textures on rock minerals, precipitates of carbonate minerals, and change in brine chemistry (Kaszuba et al 2003). Dissolution of rock minerals have also been reported to increased porosity (Mohamed 2010 andWandrey et al 2011). Dissolution of rock minerals have also been reported to increased porosity (Mohamed 2010 andWandrey et al 2011).…”

Section: Co 2 Solubility In Brine Acidity and Reactivitymentioning

confidence: 99%

Challenges of Resistivity Log As A Monitoring Technique During Carbon Dioxide Sequestration In Carbonate Formations

2014

View full text Add to dashboard Cite

Electrical resistivity measurement technique is being used to evaluate the remaining oil in place during carbon dioxide (CO2) -EOR and it is currently extended to CO2 sequestration projects for tracking and quantifying carbon dioxide migration. Seismic method is another technique but it becomes less effective at about 40% of CO2 saturation giving resistivity technique an edge. However, the complexity of carbonate rocks with respect to the heterogeneity of its pore character and wettability, and the susceptibility of these factors to Carbon dioxide -Brine -Rock interaction (CBRI) can make such technique intractable for fluid monitoring in carbonate formations. This paper reviews the suitability of resistivity measurement for carbon dioxide monitoring. We reviewed the factors affecting resistivity-based saturation models with a focus on a new insight into how electrical properties of carbonate formation can be dependent on CBRI and on time. Laboratory study involved injecting supercritical CO2 into representative brine saturated core samples under reservoir and a closed boundary condition such that injected CO2 remained in place for a considerable length of time. A data acquisition system was designed to log core resistivity, temperature, pore pressure, and overburden pressure with time. Results revealed changes in rocks' pore character and rock electrical behavior over CO2 storage time. The resulting effects and challenges on resistivity measurements and estimation of carbon dioxide saturation distribution are also elaborated. Finally, a proposal into addressing these challenges is presented.

show abstract

Monitoring petrophysical, mineralogical, geochemical and microbiological effects of CO2 exposure — Results of long-term experiments under in situ conditions

Cited by 29 publications

References 16 publications

Mineralogical and geochemical analysis of Fe-phases in drill-cores from the Triassic Stuttgart Formation at Ketzin CO2 storage site before CO2 arrival

Mineralogical and geochemical analysis of Fe-phases in drill-cores from the Triassic Stuttgart Formation at Ketzin CO2 storage site before CO2 arrival

Relevance of Deep-Subsurface Microbiology for Underground Gas Storage and Geothermal Energy Production

Challenges of Resistivity Log As A Monitoring Technique During Carbon Dioxide Sequestration In Carbonate Formations

Contact Info

Product

Resources

About