WP3 / WP6 Meeting WP3/WP6 meeting Investigation of Unconventional Geothermal Resources and in...
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Transcript of WP3 / WP6 Meeting WP3/WP6 meeting Investigation of Unconventional Geothermal Resources and in...
WP3 / WP6 Meeting
WP3/WP6 meetingInvestigation of Unconventional
Geothermal Resources and in particular Enhanced Geothermal Systems
Conveners A. Manzella & Th. Kohl
BRGM
BRGM
Engine Launching Conference 12-15 February 2006
Orléans, FranceSession 3
Engine, Launching conference, Orléans 13-15 February 2006 > 4
Outline
> BRGM Presentation
> ENGINE Contract
> BRGM Geothermal activities
> WP3/WP6
Engine, Launching conference, Orléans 13-15 February 2006 > 5
BRGM
> Major public institution in the Geoscience field.
> Triple role of scientific research, public expertise and international cooperation
> BRGM operates as the French Geological Survey
> Objectives
> Understand geological phenomena, develop new methodologies and techniques, produce and disseminate pertinent, high-quality data
> Provide the necessary tools for public policies concerning surface, subsurface and natural-resource management, natural-risk and pollution prevention, and regional development and planning
Engine, Launching conference, Orléans 13-15 February 2006 > 6
8 thematic areas: www.brgm.fr
Mineral resourcesWaterDevelopment planning and natural risksContaminated land and waste managementEnvironmental metrologyMapping and geoinformationGeothermal energy and geological storage of
CO2Digital information systems
Engine, Launching conference, Orléans 13-15 February 2006 > 7
BRGM Staff
844 employees, including more than 600 scientists, engineers and technicians
29 regional offices in metropolitan France and its Overseas Departments and Territories
Teams working in more than 40 countries
Turnover for 2003: €81.49 million
Legal status: A public institution with industrial and commercial interests under the joint supervision of the Ministry for Research, the Ministry for Industry and the Ministry for Environment.
Engine, Launching conference, Orléans 13-15 February 2006 > 8
Environmentand
Processes
D. DARMENDRAILD. DARMENDRAIL
Analysis andMineral
Characterisation
A. M. FOUILLACA. M. FOUILLAC
RegionalGeological
Surveys
M. BEURRIERM. BEURRIER
DevelopmentPlanning andNatural Risks
H. MODARESSIH. MODARESSI
Mineral Resources
J. TESTARDJ. TESTARD
Water
D. PENNEQUIND. PENNEQUIN
Geology and
Geoinformation
D. VASLETD. VASLET
Operational DivisionsOperational Divisions
ResearchC. FOUILLAC
Public ServiceL. BEROUD
InternationalJ.C. GUILLANEAU
Production, Informatics and Quality
F. LELANN
Strategic PlanningJ. VARET
General SecretaryR. GUERILLON
General InspectorateP.L KIRCHER
Human ResourcesM. BOUILLEAU
AccountingJ.P. RIBERT
Communications andPublications
G. LEHIDEUX-VERNIMMEN
Information Systems andTechnologies
J.M. TROUILLARDJ.M. TROUILLARD
ChairmanChairmanPh. VESSERONPh. VESSERON
Managing DirectorManaging DirectorD. HoussinD. Houssin
Engine, Launching conference, Orléans 13-15 February 2006 > 9
Geological map of France at 1:50,0001060 maps (92% maps published)
Engine, Launching conference, Orléans 13-15 February 2006 > 10
ENGINE Contract N°019760
> Contract signed by ENGINE partners sent to the Commission on 23/12/05
> Contract signed by the Commission on 06/02/06
> According to the contract the pre-financing will be made within 45 days from the date of the Commission's signature (before 21/03/06)
> Administrative questions: A. Beauce
Engine, Launching conference, Orléans 13-15 February 2006 > 11
BRGM main geothermal activities
EGS Pilot Plant : Soultz
2005 2006 2007
High enthalpie project : DOM
ENGINE (EGS) & I-GET (Geophysical exploration)
Low geothermal energy projects
Very low geothermal energy projects
Europe, 6FP, Ademe
Ademe, Feder, Régions
Europe, 6FP
Ademe, Arene, EDF, Régions
Europe, Ademe
Fundings
Engine, Launching conference, Orléans 13-15 February 2006 > 13
WP3/WP6: Investigation of Unconventional Geothermal Resources and in particular Enhanced Geothermal Systems
• Integration of recent progress in knowledge concerning the European lithosphere
• Mechanical behaviour of the upper crust and its response to stress, fluid circulation and heat-flow gradients
• Exploring different types of geothermal reservoir
– High-energy geothermal fields (active/recent volcanism and peripheral zones)
– High-temperature / low-permeability reservoirs (hot dry rocks)
– New deep, and possibly supercritical, geothermal reservoirs
– Multipurpose geothermal reservoirs
• Technological challenge of the investigation phase
– Improved exploration methods for deep geothermal resources
– Combined geological and geophysical imaging methods for defining and assessing reservoirs for potential heat exchange
– 3D modelling and imaging of permeable systems
Engine, Launching conference, Orléans 13-15 February 2006 > 14
BRGM experience in geothermal exploration
> Geophysical exploration (H. Fabriol)• Resistivity survey Ex. Bouillante
• Gravity Magnetic studies
> Geochemical exploration (B. Sanjuan)• Gas survey (CO2, CH4, Helium) (La Réunion, Bouillante)
• Borehole fluid monitoring (Soultz, Bouillante, Martinique)
• Fluid composition (Chemistry, isotopic chemistry)
> Geological exploration (A. Genter & H. Traineau)• Volcanic and structural studies (La Réunion, Martinique,
Bouillante, Dominique)
• Hydrothermal alteration (Bouillante, Soultz, Martinique)
• Borehole monitoring (Soultz, Urach, Martinique, Bouillante)
• Borehole imagery techniques (Soultz)
• Well logging in granite (Soultz)
Engine, Launching conference, Orléans 13-15 February 2006 > 15
Application of geophysics to geothermal resources at BRGM
> More than 25 years of experience into geothermal exploration in volcanic, granitic and sedimentary context• Lesser Antilles, La Réunion, Milos, El Salvador, etc.• Paris Basin and Limagne Basin• Soultz-sous-Forêts (France)
> Tools developed : • Potential methods (gravity, magnetism)• Electrical resistivity: DC and EM, MT• Passive seismic: microseismicity and broadband for exploration and exploitation• Marine seismic (shallow depth)• Monitoring surface deformations: microgravity and SAR Interferometry
> Meetings to be attended : Potsdam (Workshop 1), Pisa (Workshop 2) and Zürich (Workshop 3)
> Exchange of personnel : ??
> Contact: [email protected]
Engine, Launching conference, Orléans 13-15 February 2006 > 16
Resistivity cross section at Bouillante (H. Fabriol)
Fabriol et al., WGC05
Engine, Launching conference, Orléans 13-15 February 2006 > 17
Fracture analysis at Soultz
› about 14 km of image logs analysed
Fractures collected from high-resolution oriented image logs
Amplitude Transit time
Dezayes et al.,WGC05
Engine, Launching conference, Orléans 13-15 February 2006 > 18
3D modelling and geothermics
> Bouillante, Guadeloupe, Volcanic formations
> Limagne, North Massif Central, Clastic reservoirs
Engine, Launching conference, Orléans 13-15 February 2006 > 19
3D Model at Bouillante (B. Sanjuan)
EarthVision
Engine, Launching conference, Orléans 13-15 February 2006 > 20
Thermal model & permeable zones at Bouillante
Engine, Launching conference, Orléans 13-15 February 2006 > 22
3D model of clastic reservoirs: sandstones-sands
S1
<300
Lutetian
Chattian
Rupelian
Priabonian
Bartonian
Basement
46
40
34
28
23
Age(Ma)
ReservoirsStages
Upper Oligocene
Lower Oligocene
Upper Eocene
Ante Tertiary
Middle Eocene
Levels
S3
S2
S4
Sequences
Engine, Launching conference, Orléans 13-15 February 2006 > 23
WP3/WP6: Investigation of Unconventional Geothermal Resources and in particular Enhanced Geothermal Systems
• Integration of recent progress in knowledge concerning the European lithosphere
• Mechanical behaviour of the upper crust and its response to stress, fluid circulation and heat-flow gradients
• Exploring different types of geothermal reservoir
– High-energy geothermal fields (active/recent volcanism and peripheral zones)
– High-temperature / low-permeability reservoirs (hot dry rocks)
– New deep, and possibly supercritical, geothermal reservoirs
– Multipurpose geothermal reservoirs
• Technological challenge of the investigation phase
– Improved exploration methods for deep geothermal resources
– Combined geological and geophysical imaging methods for defining and assessing reservoirs for potential heat exchange
– 3D modelling and imaging of permeable systems
Engine, Launching conference, Orléans 13-15 February 2006 > 24
WP4/WP7: Drilling, stimulation and reservoir assessment
• Dynamics of the geothermal field, stimulation and reservoir assessment
– Stress pattern
– Stimulation and improvement of the permeability of a geothermal field
– Dynamics of the fissured horizons and induced microseismicity
– Reservoir physics and physical properties of rocks and hydro fracturing group
– Fluids, rock-fluid interaction, tracer and geochemistry, scaling factor
• Drilling
– Drilling cost effectiveness and feasibility of high-temperature drilling
– Micro-drilling
Engine, Launching conference, Orléans 13-15 February 2006 > 25
WP5/WP8: Exploitation, economic, environmental and social impacts
• Exploitation– Unconventional exploitation systems – Development of innovative tools for exploitation– State-of-the-art of down-hole fluid treatments– Plant and reservoir monitoring – Re-injection
• A global economic approach of geothermal energy– Sustainability of geothermal energy– Multiple integrated uses group – Socio-economic benefits of geothermal exploitations
• Environmental impacts– Barriers to development– Microseismicity and risk assessment related to stimulation and
exploitation– Conditions for a 100% clean exploitation of geothermal energy
• Increasing policy makers awareness and public acceptance– Building a network for political support – Societal needs and public requirement– Communication policy