2-D Numerical Modeling of CO2 Storage in the Devonian H2S Containing Nisku Aquifer in the Wabamun Lake Area (Alberta, Canada)

被引：0

作者：

Dalkhaa, Chantsalmaa ^{[1
]}

Shevalier, Maurice ^{[1
]}

Mayer, Bernhard ^{[1
]}

Nightingale, Michael ^{[1
]}

机构：

[1] Univ Calgary, Dept Geosci, Appl Geochem Grp, Calgary, AB T2N 1N4, Canada

来源：

GHGT-11 | 2013年 / 37卷

关键词：

TOUGHREACT; reactive transport modeling; CO2; storage; H2S; Nisku; DISPOSAL; SEQUESTRATION; TOUGHREACT; GASES;

D O I：

10.1016/j.egypro.2013.06.451

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The Devonian Nisku aquifer has been identified as a suitable CO2 storage site in the Alberta Basin, but this aquifer contains significant amounts of H2S. Numerical simulations were performed to investigate the impact of dissolved H2S in the brine on the behavior of the injected CO2. No major differences in geochemical reactions were observed between model runs with and without H2S. Extensive dolomite dissolution was observed in both model runs, which caused a minor increase in porosity and permeability of the aquifer. The majority of the injected CO2 was trapped in the Middle Nisku as a free supercritical phase and the rest was dissolved in the brine. (c) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：5331 / 5338

页数：8

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