Investor Presentaiton
SITE CHARACTERIZATION METHODOLOGY OF CCS
1
TEKNOL
STITUT
7920
Regional Characterization
Geoscience characterization
State/Country assessment: Basin suitability
Tectonic setting; basin size; depth; intensity of faulting; hydrodynamic and
geothermal regimes; on/offshore; accessibility; existing petroleum and coal
resources; industry maturity (Bachu, 2003)
Regional site assessment: Identification of prospective sites
Site details (distance from CO₂ source, depth to top reservoir, on/offshore); containment
(seal capacity and thickness, trap type, faults); storage capacity (pore volume, area, CO₂
density): injectivity (permeability, porosity, thickness); existing natural resources (proven
petroleum system, groundwater, coal, national park) (Bradshaw et al., 2002)
Regional Characterization
2
Preferred site selected: Detailed site evaluation
STRUCTURAL MODEL
Geometry of major horizons;
fault juxtaposition;
fault/fracture intensity
STRATIGRAPHIC MODEL
Sedimentology; sequence
stratigraphy: environments of
deposition and facies distribution
Injectivity
Reservoir quality.
geometry and
connectivity:
CO2-water-rock
interactions
Geomechanics
Fault stability
and maximum
sustainable
fluid pressures
Containment
Seal extent and capacity:
migration pathways;
trap mechanisms;
CO2-water-rock
interactions
Hydrodynamics
Direction and
magnitude of
formation water.
flow systems
Capacity
3-D cellular
geological
model and
pore volume
Geoscience characterization
3
Injection phase
Injection rate:
well design;
injection pattern
Postinjection phase
Long-term migration; dynamic flow
behaviour; ultimate destination and
form; sweep efficiency; capacity
(free-phase, residual and dissolved)
Engineering
characterization
4
characterization
Engineering
Coupled models
Geochemical reactive
transport; geomechanics-flow
simulation; hydrodynamics-
flow simulation
+
characterization
Socioeconomic
Economics
Capital and operating
costs of compression.
transport and injection;
costs per tonne of CO2
avoided
Risk and uncertainty
Quantitative risk assessment;
key performance indicators;
likelihood of possible CO2
loss; uncertainty ranges
Monitoring and verification
Direct and remote-sensing
geophysical, geochemical and
petrophysical technologies
for subsurface, well bores,
near surface and atmosphere
characterization
Socioeconomic
Gibson-Poole (2009)View entire presentation