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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i11.60
pages 1001-1021

SEQUENTIALLY COUPLED MODEL FOR MULTIPHASE FLOW, MEAN STRESS, AND REACTIVE SOLUTE TRANSPORT WITH KINETIC CHEMICAL REACTIONS: APPLICATIONS IN CO2 GEOLOGICAL SEQUESTRATION

Ronglei Zhang
Energy Modeling Group, Petroleum Engineering Department, Colorado School of Mines, Golden, Colorado 80401, USA
Yu-Shu Wu
Energy Modeling Group, Petroleum Engineering Department, Colorado School of Mines, Golden, Colorado 80401, USA

Краткое описание

The significance of thermal-hydrological-mechanical-chemical (THMC) interactions is well identified during the operation of CO2 geosequestration. Geomechanical and geochemical effects may significantly affect aqueous phase composition, porosity, and permeability of the formation, which in turn influence flow and transport. A mean stress formulation is proposed to represent the geomechanical effects such as stresses, displacements, and rock deformation. The geochemistry is described mathematically under equilibrium and kinetic conditions. Based on these theories, a sequentially coupled computational framework is proposed and used to simulate reactive transport of water, supercritical CO2, and species in subsurface formation with geomechanics. A practical reactive transport example with complex chemical compositions is presented to analyze the THMC processes quantitatively on the coupled effects of geochemical reaction and geomechanics for CO2 geosequestration. The results indicate that the THMC coupling effects are not obvious during CO2 sequestration. The geomechanical effect dominates the early period of CO2 injection, and the geochemical reaction dominates the long-term fate of CO2. The efficacy of mineral trapping of supercritical CO2 with respect to 30% plagioclase feldspar minerals in a sandstone reservoir increases to 65% after 10,000 years.


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