EGU General Assembly 2007
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  Information - HS12 Geothermal energy and brine transport

Event Information
Density dependent flow processes play an important role in many areas of subsurface hydrology, geophysics, reservoir mechanics, and underground nuclear engineering. Typical applications include design of geothermal energy extraction systems, large-scale convection in deep geothermal areas, concentrated pollutants transport, saltwater intrusion in exploited coastal aquifers, infiltration from landfills and industrial waste disposals, among others.
Continuously rising oil and gas prizes and the increase of the greenhouse gas CO2 call attention to the need for more sustainable energy resources. One of the sustainable energy resources is the heat that is stored in the earth, which is an inexhaustible source of energy and could be used almost anywhere in the world. Hence, density-driven flow and deep circulations of geofluids, which can lead to transport of heat and solutes over larger spatial scales, is vital in understanding and exploring deep geothermal energy systems.
Due to over-exploitation, salt intrusion is becoming a crucial issue for coastal aquifers or aquifers overlapping salt formations. Therefore, the management of the groundwater requires specific understanding of the flow and transport processes, a detailed knowledge of the aquifer’s properties and initial conditions and very accurate numerical tools.
This session seeks contributions of the following fields: (1) shallow and deep geothermal energy, (2) high concentrated pollutant transport and (3) density-driven flow in porous and fractured rock systems including current international and national projects, reservoir characterisation (e.g. thermal response tests, hydraulic well tests, fractured rock characterisation, monitoring microseismicity, etc.), new drilling techniques, reservoir stimulation techniques (hydraulic and chemical), environmental and economical risk assessments of geothermal energy systems, conceptual and numerical models. Thus the session provides an overview of the current and future research on density-driven flow, shallow and deep geothermal energy systems.

Preliminary List of Solicited Speakers


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