کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1743992 1522038 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Case study of geochemical reactions at the Nagaoka CO2 injection site, Japan
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Case study of geochemical reactions at the Nagaoka CO2 injection site, Japan
چکیده انگلیسی

In this paper we present the results of an integrated field and experimental study on the geochemical reactions in a sandstone reservoir at Nagaoka, Japan, where the first Japanese pilot project of CO2 geological storage is underway. Prior to the CO2 injection, we collected formation water and rock samples from the reservoir, and conducted laboratory experiments to investigate the geochemical reactions when injecting CO2 into the reservoir. About 1 year after stopping the CO2 injection, we again collected formation fluid using a Cased Hole Dynamics Tester (CHDT) at one of the three observation wells where CO2 breakthrough was confirmed by time-lapse well logging. Chemical analyses of the post-CO2 injection samples indicate a high HCO3− concentration compared to original formation water. Concentrations of Ca, Mg, Fe, Mn and Si also increased. The field results were quite similar to the laboratory experiments on CO2–water–rock reactivity. Our results demonstrated the potential of CO2 storage by formation water dissolution and mineral trapping of CO2.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Greenhouse Gas Control - Volume 2, Issue 3, July 2008, Pages 309–318
نویسندگان
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