کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8090383 | 1521978 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Monitoring of cap-rock integrity during CCS from field data at the Ketzin pilot site (Germany): Evidence from gas composition and stable carbon isotopes
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
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چکیده انگلیسی
Cap-rock integrity is a key issue in Carbon Capture and Storage (CCS) technologies. At the Ketzin pilot site, new drill cores of sealing- and reservoir formations were retrieved from a depth range of 620-701 m below ground level (b.g.l.). These strata have been exposed to injected CO2 under field conditions for more than four years. Here we present data on cap-rock and reservoir lithologies, CO2 concentrations and their stable carbon isotope ratios (δCCO213). CO2 concentrations within the mudstone-dominated cap-rock were <1% (i.e. 10 000 ppmV) with corresponding carbon isotope values between â18.6â° and â29.4â°. Below the boundary between the cap-rock and the reservoir, CO2 concentrations of more than 90% with mean δCCO213 values around â36.5â° were measured. Below this section, between 648 and 655 m b.g.l., CO2 concentrations decreased again in the clayey and silty lithology of the reservoir to less than 2%, but maintained a depleted δCCO213 value of around â34.2â°. At depths below 662 m b.g.l., the CO2 concentrations decreased to values of less than 10 000 ppmV and showed corresponding increases to δCCO213 values between â15.9â° and â27.6â°. Both isotope and CO2 concentration confirm that no CO2 from the reservoir penetrated the cap-rock at the Ketzin pilot site after four years of injection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Greenhouse Gas Control - Volume 43, December 2015, Pages 133-140
Journal: International Journal of Greenhouse Gas Control - Volume 43, December 2015, Pages 133-140
نویسندگان
J.A.C. Barth, M.E. Nowak, M. Zimmer, B. Norden, R. van Geldern,