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Fluid dynamics of carbon dioxide disposal into saline aquifers

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fluid dynamics of carbon dioxide disposal into saline aquifers
作者:	Garcia, Julio Enrique.
面頁冊數:	136 p.
附註:	Chair: Nicholas Sitar.
附註:	Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0955.
Contained By:	Dissertation Abstracts International65-02B.
標題:	Engineering, Environmental.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3121485
ISBN:	0496688367

Fluid dynamics of carbon dioxide disposal into saline aquifers
Garcia, Julio Enrique.

Fluid dynamics of carbon dioxide disposal into saline aquifers [electronic resource] - 136 p.

Chair: Nicholas Sitar.

Thesis (Ph.D.)--University of California, Berkeley, 2003.

An investigation of the thermophysical properties of pure carbon dioxide, water and aqueous solutions of CO2 and NaCl has been conducted. As a result, accurate representations and models for predicting the overall thermophysical behavior of the system CO2-H2O-NaCl are proposed and incorporated into the numerical simulator TOUGH2/ ECO2. The basic problem of CO2 injection into a radially symmetric brine aquifer is used to validate the results of TOUGH2/ ECO2. The numerical simulator has been applied to more complex flow problem including the CO2 injection project at the Sleipner Vest Field in the Norwegian sector of the North Sea and the evaluation of fluid flow dynamics effects of CO2 injection into aquifers.

ISBN: 0496688367Subjects--Topical Terms:

212478
Engineering, Environmental.

Fluid dynamics of carbon dioxide disposal into saline aquifers
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500 $a Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0955.
502 $a Thesis (Ph.D.)--University of California, Berkeley, 2003.
520 # $a An investigation of the thermophysical properties of pure carbon dioxide, water and aqueous solutions of CO2 and NaCl has been conducted. As a result, accurate representations and models for predicting the overall thermophysical behavior of the system CO2-H2O-NaCl are proposed and incorporated into the numerical simulator TOUGH2/ ECO2. The basic problem of CO2 injection into a radially symmetric brine aquifer is used to validate the results of TOUGH2/ ECO2. The numerical simulator has been applied to more complex flow problem including the CO2 injection project at the Sleipner Vest Field in the Norwegian sector of the North Sea and the evaluation of fluid flow dynamics effects of CO2 injection into aquifers.
520 # $a High-resolution numerical simulation experiments have been conducted to study the onset of instabilities (viscous fingering) during injection of CO2 into saline aquifers. The injection process can be classified as immiscible displacement of an aqueous phase by a less dense and less viscous gas phase. Under disposal conditions (supercritical CO2) the viscosity of carbon dioxide can be less than the viscosity of the aqueous phase by a factor of 15. Because of the lower viscosity, the CO2 displacement front will have a tendency towards instability. Preliminary simulation results show good agreement between classical instability solutions and numerical predictions of finger growth and spacing obtained using different gas/liquid viscosity ratios, relative permeability and capillary pressure models. Further studies are recommended to validate these results over a broader range of conditions.
520 # $a Injection of carbon dioxide (CO2) into saline aquifers has been proposed as a means to reduce greenhouse gas emissions (geological carbon sequestration). Large-scale injection of CO2 will induce a variety of coupled physical and chemical processes, including multiphase fluid flow, fluid pressurization and changes in effective stress, solute transport, and chemical reactions between fluids and formation minerals. This work addresses some of these issues with special emphasis given to the physics of fluid flow in brine formations.
520 # $a Numerical simulation results show that the transport at Sleipner is dominated by buoyancy effects and that shale layers control vertical migration of CO 2. These results are in good qualitative agreement with time lapse surveys performed at the site.
590 $a School code: 0028.
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650 # 0 $a Hydrology. $3 196201
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791 $a Ph.D.
792 $a 2003
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