کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
808923 1468681 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fracturing-hydraulic coupling in transversely isotropic rocks and a case study on CO2 sequestration
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Fracturing-hydraulic coupling in transversely isotropic rocks and a case study on CO2 sequestration
چکیده انگلیسی


• Displacement discontinuity analysis of deformation in anisotropic rocks is outlined.
• Crack initiation and growth criteria with strength anisotropies are presented.
• Equations for fluid flow in fractures are investigated.
• A real CO2 geo-sequestration demonstration project is simulated.
• The model results agree with other methods and monitoring.

This paper outlines a two-dimensional displacement discontinuity method (DDM) for transversely isotropic elastic materials and a direction-dependent criterion for fracturing in anisotropic rocks. These are combined to analyse fracturing processes in transversely isotropic rocks. The fracturing analysis is then coupled with equations for fluid flow in fractures to study the interactions of the fluid flow and rock mass deformation. These functionalities have been implemented into an existing computing code FRACOD.We describe results from application of the fracturing-hydraulic coupling model for transversely isotropic rocks in a detailed case study of a CO2 geo-sequestration project in Australia. Existing fault re-activation and the cap-rock stabilities have been studied in detail. Modelling predicts that the site is stable under the injection conditions and this agrees with other simulations and site monitoring data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 88, October 2016, Pages 206–220
نویسندگان
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