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6/24/2016
1
SWH Project
LCCC Meeting
Harvey
May 31, 2016Sandeep Sharma and Louise
Stelfox
LCCC Meeting
31 May 2016
Sandeep Sharma and Louise Stelfox
Overview
• Context and Overview
• Carbon-dioxide Capture and Storage
• The SW Hub Project Concept
• Modelling Workflows
• SW Hub Project Status
• Model Results
• Next Steps
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Concept : Carbon Capture and Storage
Transportation
Systems
Capture
Processes
Storage
Reservoirs
What are we trying to establish for Storage
reservoirs?
• Capacity : How
much?
• Injectivity : At
what rate?
• Containment :
Can we keep it in
our target
reservoir?EShAG
CO××Φ××=
2
Areal extend
Thickness
Porosity
CO2
Efficiency
solubility
S
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3
2010 : SOUTH WEST HUB PROJECT
CONCEPT
Primary Migration
and Immobilisation of CO2
No CO2 movement outside the
Yalgorup
Wonnerup
Member
Yalgorup
Member
Assessment Approach –> Performance Factors
Data Collection & QC
Static Modelling &
Dynamic Modeling
Capacity Containment
Geomechanics
• Fault Stability
• Sustainable
fluid pressure
Well integrity
• Zonal
isolation
Hydrodynamics
• Formation
water flow
systems
Injectivity
• Reservoir quality
• Geometry
• Connectivity
• 3D Cellular
Geological
Model
• Pore Volume
• Connectivity
– Geophysics / Geology
– Petrophysics /
Mineralogy
– Geomechanics
– Fluid Properties
– Well Integrity
From CO2CRC – Latrobe Valley Study
Seal potential, migration pathways and trapping mechanisms
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New Data Acquisition with Extensive Community
Consultation
2011 2D Seismic
2012-15 Harvey 1-4 Wells 2014 3D Seismic
Modeling Workflow
Surface imaging
Mapping, Seismic
Data input
Information management
GIS database
Log and Core interpretation
Well correlation
Well based properties
Uncertainty analysis
Upscaling
Reservoir and Aquifer property population
Build the Framework
Facies modelling
Fault modelling
3D flow simulation
Geochemistry
Geomechanics3D Geological model
3D Property model of the
Reservoir and the Overburden
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Static Model – what’s required?
• Geophysics – formation tops and faulting
• Geology – lithology (sand, silt, mud, clay)
• Petrophysics – physical and chemical rock properties
• Core analysis – mineralogy, porosity, permeability to
brine and to carbon dioxide
• Geomechanics – rock’s response to pressure
• Fluid properties – chemistry, chemical interactions
Wireline (geophysical) logging
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Wireline (geophysical)
logging
Sandstone
Siltstone
silty sandstone
Analogue – depositional environment
Brahmaputra,
India
Episodic pulses of
flow and sediment
Braided fluvial
system
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Analogue – Hawkesbury
Sandstone, NSW
Static model
Geophysics, geology, petrogeophysics
depositional analogue – construct 3D
static model
Next? Populate the model
Recap
Core analysis data
– rock properties
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Core analysis: selecting and cutting plugs
Core analyses
These rock property data
are used to populate the:
1. static and
2. dynamic models
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Harvey-2, -3 and -4,
summarised
relative clay
mineralogy,
as determined by
XRD
Baffles and reservoir
Harvey 3 –
Wonnerup
Member
– 1,519 m
SEM 100 µm
SEM 10
µm
Harvey 3
–
Yalgoru
p
Member
– 1,354
m
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Wonnerup
Sabina
Yalgorup
F10 Fault
Western Fault
“Greater AOI”
25x25=214mil
250x250=1.1mil
“GeoGrid”
@ 25x25x1m
= ~166 mil cells
Area includes
all 4 wells.
“Sector Model”
@ 25x25x1m
= ~0.8 mil cells
(500mx500m)
“Sector Model”
Area Vs Cell Size
Aim for ~1 mil cells.
No Faults & No Wells.
Porosity
Grid : 250x250m
Layers : 1m Yalgorup
4m Wonnerup
Cells : 1.1milTop
Sabina
Top
Wonnerup
“F10”
Fault
H-2
H-4H-3
H-1
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Reference Case Injection Performance over 30 Years
01/20 01/22 01/24 01/26 01/28 01/30 01/32 01/34 01/36 01/38 01/40 01/42 01/44 01/46 01/48 01/50 01/520
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
CO
2 I
nje
cti
on
Ra
te (
ton
ne
s/d
ay
)
0
1MM
2MM
3MM
4MM
5MM
6MM
7MM
8MM
Cu
mu
lativ
e C
O2
Inje
cte
d (to
nn
es
)
CO2 Injection Rate Cumulative CO2 Injected
Maximum gas injection rate of ~700 tonnes/day
Probability Distribution of Injectivity after 30 Years
Single Well
Sample Johnson SB
Tonnes of CO2 After 30 Years
12111098765432
Probability
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
P50=5.9 million tonnes of CO2
P90=2.6 million tonnes of CO2
P10=9.6 million tonnes of CO2
Reference Case
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Next Steps
• Use Static Model to develop dynamic models
• Simulate cases of CO2 injection and movement using wells
• Generate plume maps as per the example below (from 2012
model before the 3D seismic)
EXAMPLE
ONLY
• Next stage of data acquisition will depend on results and geological information gaps to be addressed
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