CO2 - Coal Sequestration Project in JAPAN
Hironobu Komaki , KANSO
“ Coal-Seq� ” March,2004 Baltimore,Maryland
Hironobu Komaki , KANSO
“ Coal-Seq� ” March,2004 Baltimore,Maryland
Sponsored by : METI [ Ministry of Economy,Trade and Industry ]
Performed by : KANSO [ Kansai Environmental Engineering Center ]
JCOAL [ Japan Coal Energy Center ]
Image of CO2 Sequestration in Coal Seams
COCH
CO
CH
CO2 Capture technology from fuel gas
wellwellwellwell
Injection
Coal Seamequipment abolishedPurpose : Development of cost-effective CO2
sequestration technology in coal seam
Recovery
Utilize of CH�
Power plant
Organization of Japan Project
METIMinistry of Economy, Trade and Industry
METIMinistry of Economy, Trade and Industry
KANSOKansai Environmental Engineering Center
KANSOKANSOKansai Environmental Engineering Center
Basic ResearchHokkaido Univ.Akita Univ.Waseda Univ.Kyoto Univ.
[RITE]
Basic ResearchHokkaido Univ.Akita Univ.Waseda Univ.Kyoto Univ.
[RITE]
Study on Monitoring Technology[KANSO]Development of CO2Capture Technology
[MHI,KEPCO]
Study on Monitoring Technology[KANSO]Development of CO2Capture Technology
[MHI,KEPCO]
CO2 Preliminary field tests[JCOAL]
CO2 Preliminary field tests[JCOAL]
Technical Subjects
CH4/CO2 displacement mechanism in coalSimulation of CO2/CH4 behavior in coal seamIdeal condition of CO2 sequestration in coal seamCost reduction of CO2 capture from flue gas Monitoring technologyPotentiality of CO2 sequestration in Japanese coal basins Total system of CO2 sequestration in coal seam
- CO2 recovery/transportation and injection//CH4 recoveryEconomics
3
Organization and ContentsBasic Research
Understanding of CO2-CH4replacement mechanism
Effect of CO2injection/adsorption on coal
Potentiality of CO2 sequestrationin Japanese coal reserve
Preliminary testof CO2 injection
[JCOAL]
Monitoring Technology
Cost Reductionof CO2 Capture
from Flue Gas
Preliminaryfield tests
Simulation of CO2/CH4 behaviorin coal seam
Simulation basic data measurement
Adsorption isothermincluding in super-critical condition
Determination of distance between IW and PW
Estimation of CO2 sequestration capacity
Assessment of horizontal well and hydrofracturingeffects
Verification of simulation
Preliminary Test of CO2 Injection
Site Selection CriteriaField Condition:
Site is separated enough with the mined-out area.
Geological structure is interpreted by the exploration data.
Geological Condition:
Depth of coal seam: deeper than 500 m from the surface
Thickness of coal seam: more than 1 m thick
Cap rocks: more than 250 m thick
Geological data: sufficient geological data
Surface Condition:
The place for apparatus installation is securable.
Preliminary Test – Site proposed
Hokkaido
IshikariCoal Basin
0 100 200 km50
Sapporo
0 100 200 km50
Sapporo
Hokkaido
Preliminary test of CO2 injectionTechnical assessment of Geological character of Reservoir
Drilling (IW-1, PW-1)
Core Analysis (Coal and Rock)
Measurement of in-situ gas content in coal seam
Geophysical loggingWell Test Fall off test, Steprate test,
Water injection test
Production test of groundwater and gasTechnical Assessment on Simulation
Image of Preliminary Field tests
CH4Production
CH4CO2
CO2 Injection
CO2
CH4Flue Gas
Injection Well
Coal Seam
Production Well
PP
G
GT/E
CO2 Capturing System
HE
Electric Power
P: CompressorGT/E: Gas Turbine/EngineG: GeneratorHE: Heat ExchangerAB: Absorber
AB
Micro pilot test - Schedule
FY’02 FY’03 FY’04 FY’05 FY’06
Single-well Injection
Multi-well Injection
Midterm Evaluation
Multi-well & CO2 Recovery Plant
Site ( In IW-1 Drilling)
14
Geological Formation
Dark mudstone916.20 932.60(16.40)
HorokabetsuFormation
Dark brown mudstone, dark brown siltstone, blue-grey very fine to coarse sandstone, coal, coaly shale, black shale
True Thickness (0.87/1.52)True Thickness (2.35/2.35)True Thickness (5.54/5.63)
678.00 916.20(238.20)
742.00 743.75851.20 853.70890.08 896.30
YubariFormation(Main Coal Seams)
UpperMiddleLower
Dark grey mudstone, dark brown mudstoneDeep greenish grey medium to coarse sandstone (with basal glauconitic sandstone)
0.00 678.00(678.00)
PoronaiFormation
LithologyDepth(interval)
Formation
Data of Reservoir (Lower Coal Seam)
Perforated Depth : 890-95Coal Seam Thickness : 5.64Water Viscosity mPa-s): 0.85Coal Seam Dip: 20
In-situ gas contentestimation volume (daf) 26.68ml/g
IW-1 Testing ResultsReservoir Pressure (kPa) 10,200Coal Permeability to Water mD) k1: 0.93, k2: 1.66 Transmissivity (mD-m/cp) k1: 5.25, k2: 9.38Skin Factor 0.24Wellbore Storage Coefficient (m3/kPa) 2.9e-6
Wellbore Storage Constant 16.7Fracture Pressure (kPa) 15,800Coal Closure Pressure (kPa) 10,900
ConstantPressure
Boundary
2
1r1 = 5.76 mr2 = 38.21 m
2004 Multi Well TestCO2-ECBM test using IW and PW
• Subject Layout of WellsDetermination of distance between IW and PWEstimation of CO2 sequestration capacityDesign of horizontal well
Amount of to be injected tMain works to be done at the test:
Image of IW and PW
IW PW
-600
-700
-800
-900
Distance between IW and PW in coal seam : 50m
Monitoring Technology
Safety
Local Environmental
Impact
Sequestration Effectiveness
CO2 plume locationInjection/Recover well condition- flow rate, pressure, gas concentration
CO2 concentration and fluxeson the surface and in the soilLeakage up faults and fracturesGround water quality/quantityEcosystem impactMicroseismicity
CO2 Sequestration in Coal Seam- Possible Site in Japan -
TokyoOsaka
Offshore Hidaka and Sanriku
Basin (Coal-bearing Sedimentary Basin)
Offshore Joban Basin(Coal-bearing
Sedimentary Basin)East China Sea
Sedimentary Basin
Coalfields in Hokkaido (inland)
Coalfields in Northern Kyushu
(inland)
Deep Coalfield in Hokkaido (inland)
Inland Coalfields (shallow & deep)
Offshore Coal-bearing Sedimentary Basin
Low Rank Coal-bearing Area (inland)
The future policy for the GHGTHuge amount of unmineable coal reserves in Japan
- for CO2 sequestration in coal seam
- for ECBM
Inland Coalfields (shallow & deep)Offshore Coal-bearing Sedimentary BasinLow Rank Coal-bearing Area (inland)
Estimated total coal reserves: 182 billion tonnes
CBM potential: 2,540 billion m3
CO2 storage capacity: 5,000 billion m3 (10 billion tons)
