期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 54, 期 -, 页码 282-296出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2016.10.002
关键词
Geological sequestration; Cranfield; CPA-EOS; Higher-order finite elements; Heterogeneity; Fluvial deposition
类别
资金
- U.S. Department of Energy [DE-AC05-00OR22725]
- DOE Public Access Plan
A field-scale carbon dioxide (CO2) injection pilot project was conducted as part of the Southeast Regional Sequestration Partnership (SECARB) at Cranfield, Mississippi. We present higher-order finite element simulations of the compositional two-phase CO2-brine flow and transport during the experiment. High resolution static models of the formation geology in the Detailed Area Study (DAS) located below the oil water contact (brine saturated) are used to capture the impact of connected flow paths on breakthrough times in two observation wells. Phase behavior is described by the cubic-plus-association (CPA) equation of state, which takes into account the polar nature of water molecules. Parameter studies are performed to investigate the importance of Fickian diffusion, permeability heterogeneity, relative permeabilities, and capillarity. Simulation results for the pressure response in the injection well and the CO2 breakthrough times at the observation wells show good agreement with the field data. For the high injection rates and short duration of the experiment, diffusion is relatively unimportant (high Peclet numbers), while relative permeabilities have a profound impact on the pressure response. High-permeability pathways, created by fluvial deposits, strongly affect the CO2 transport and highlight the importance of properly characterizing the formation heterogeneity in future carbon sequestration projects. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据