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European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
European Geosciences Union - General Assembly 2012
Geological characterization of Italian reservoirs
and numerical 3D modelling of CO2 storage scenarios into saline aquifers
Silvia Beretta, Francesca Cappelletti, Roberto Guandalini, Fabio Moia
RSE – Ricerca Sistema Energetico S.p.A.Environment & Sustainable Development Department
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Agenda
Essentials on the RSE research activity
The numerical modelling of CO2 storage by SIAM (Integrated Analysis and numerical Modelling System)
Examples of application to on-shore and off-shore sites
Conclusions
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
RSE and the Electric System Research projects
RSE (317 employees) is a publicly-controlled company it performs R&D in the energy and environment fields involved in national and international research projects main mission is to carry out researches of general interest
for the national energy system more efforts are devoted to the Electrical System Research
projects (RdS) in order to:
• innovate the Italian electric system• improve the plant safety• increase the environmental sustainability• reduce the costs with user advantageRSE Lab.– Milan
(ITALY)
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Main purposes: • identification of potential sites and of their storage capacity• evaluation of different injection scenarios in order to verify
the suitability of the deep caprock-reservoir systems, mainly from the safety point of view
The numerical modelling of CO2 storage by SIAM
The tools: • a Web-GIS data base collecting geological and geophysical
data • a modeller for the 3D model generation and result post
processing • different 3D simulators aimed to model the geological
system from the fluid dynamic, geochemical and geomechanic point of views
• a GUI for the automatic management of all the phases of a site analysis
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
3D geological model 3D geological model
Graphic 3D Graphic 3D visualizervisualizer
MethodRdS modellerMethodRdS modeller
Profiles Profiles 1:1000 1:1000 wells wells data, data,
seismic seismic lines, lines,
geological geological and and
physical physical datadata
etc.
ToughreactRdSToughreactRdSGeochemical Geochemical
analysesanalyses(from LBNL)(from LBNL)
SHEMATSHEMATReactive fluxes Reactive fluxes
in aquifers in aquifers (from RWTH Aachen-UNI)(from RWTH Aachen-UNI)
FEHMFEHMLocal dynamic and Local dynamic and
geomechanics geomechanics (from LANL)(from LANL)
CANT-SDCANT-SD3D geomechanics3D geomechanics
(RSE)(RSE)
Tough2RdSTough2RdSMultiphase fluid Multiphase fluid
dynamics dynamics (RSE from Tough2)(RSE from Tough2)
Sem2DPackSem2DPack4D seismic response 4D seismic response (from Cal.Tech.Inst.)(from Cal.Tech.Inst.)
Web-GISWeb-GIS
The functional scheme for the site analysis
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
The SIAM GUI
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Malossa-Lombardia~380 Mton CO2
ZONA B~ 300 km
Offshore Alto Adriatico
~800 Mton CO2
Area Sulcis-Sardegna SW
Evaluation of the storage capacity for the main potential Italian storage sites
Offshore Adriaticomarchigiano
~410 Mton CO2
Offshore Calabria Ionica~100 Mton CO2
Struttura Cornelia~ 200* Mton CO2
Struttura Pesaro Mare~ 150* Mton CO2
*valori preliminari
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Malossa oil and gas field
• the Po Valley and the Lombardia region have been strongly explored for oil and gas field exploitation;
• the Malossa reservoir has been identified in 70’s about 25 km from Milano
• it is a gas reservoir, condensed in the Mesozoic sublayer
• a number of gas storage authorizations are currently in force
• data of 668 wells are currently available (110 of which from the ViDEPI project(*))• data of seismic lines (for many thousands km) are partially available
(*)http://unmig.sviluppoeconomico.gov.it/videpi/progetto.htm
Site 1: the on-shore Malossa site (Lombardia)
Starting information
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
caprock/reservoir system
Malossa oil and gas field
Milano
• analysis of 1:1000 profiles of 15 deep wells• analysis of maps from seismic information• Identification of the caprock-reservoir system
so established:‒ “Argille del Santerno”: Pliocene clays
(thickness from 62 to 543 m)‒ “Ghiaie di Sergnano”: Upper Messinian
sandy gravel formation, salt water mineralized, with high porosity, already used for the storage of oil treatment residual waters by two existing wells (thickness from 2 to 211 m). The sands have a porosity of 20-30% and permeability in the range 3-1250 mD, while the conglomerates have porosity of 14-30%, and permeability of 0.2-959 mD. Reference stratigraphy
Site 1: the on-shore Malossa site (Lombardia)
Data extraction (from CO2-GIS)
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Caprock surface shape from isopachs
Reservoir surface shape from isopachs
Site 1: the on-shore Malossa site (Lombardia)
Completion of geological model from geological sections
Base 2D Voronoi mesh for the calculation domain, including injection structures
Final 3D model (mesh + materials)
Creation of the 3D model
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Pmax at the base of the caprock
Site 1: the on-shore Malossa site (Lombardia)
• horizontal injection well, -2250 m depth• injection flow of 300.000 tonn/y, in agreement with the
Techint capture project for its Dalmine steelworks plant • calculation domain of 60x35x2.78 km• injection period of 30 y, simulated period of 100 y• safety criteria based on a overpressure value everywhere less
than 10% of the initial pressure • simulation has shown overpressure values in the reservoir
after injection period < 3 bar (~2%)
• max CO2 extension after 100 y: 2140 x 2090 x 157 meters
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Reference stratigraphy scheme
wells
Seismic sections
NNW SSELinea B 440
caprock-reservoir system
Site 2: the off-shore Alto Adriatico site
Data extraction (from CO2-GIS)
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
• horizontal injection well, -1350 m depth
• injection flow of 1 Mtonn/y, in agreement with the ENEL project for its generation power plant
• injection period of 30 y, simulated period of 100 y
• safety criteria based on a overpressure value everywhere less than 10% of the initial pressure
• simulation has shown overpressure values in the reservoir after injection period < 7.75 bar (~9%)
CO2 plume
DeltaPmax cella AAAD14
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
0 10 20 30 40 50 60 70 80 90 100
time (years)
Del
taP
(b
ar)
DeltaPmax
Site 2: the off-shore Alto Adriatico site
Pmax at the base of the caprock
CO2 injection simulation
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
Other significant sites: the fault modelling
Calabria Ionica(Tyrrenian sea)
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
The modelling procedure adopted is useful and effective• to individuate and evaluate potential storage sites and to estimate
their storage capacity;• to generate the corresponding geological and fluid dynamic models;• to simulate different injection scenarios and analyze the behaviour
of the CO2 plume in the short-, middle- and long- term.
The SIAM is useful to connect the different modelling tools and support the analysis of a potential storage site in the CCS field
The numerical tools included in the SIAM have been used also to perform the modelling of the exploitation of geothermal energy and of CAES technology
Summary
European Geosciences Union , General Assembly -Austria Center Vienna - April 22-27, 2012
How to contact us
The company web site : www.rse-web.it
The RdS projects web site: www.ricercadisistema.it
E-mail contact : [email protected]
Thank you for your attention!This work has been financed by the Research Fund for the Italian Electrical System
under the Contract Agreement between RSE and the Ministry of Economic Development - General Directorate for Energy and Mining Resources stipulated on
July 29, 2009 in compliance with the Decree of March 19, 2009