1. Status and Prospect on CO2 Capture and Sequestration in China
Hongen Dou, PhD
Research institute of petroleum Exploration and Development, PetroChina
Valencia, Oct

2. Outline CCS Projects in China CO2-EOR Projects in China
Prospect on CO2-EOR
Conclusions

3. National major science and technology projects
CCS Projects in China
Chinese government concerns greatly on CCS
In 2006,China Ministry of Science and Technology(MOST) approved CNPC to undertake a National Fundamental Research Program—Research on Utilizing Greenhouse Gas as a Resource for EOR and Storage
In 2008,the Chinese government approved a Major national program— CO2 Capture and Storage for EOR
Since 2011, Chinese National Fundamental Research Program (973 program) and Chinese National Major Science and Technology Project have approved by government
National major science and technology projects

4. CCS Projects in China

5. CO2-EOR Projects in China
CO2-EOR Pilots in China
Oilfiled
Time
Depth/m
K/md
φ/％
γ/g/cm3
T/oC
Injectors
SaNan Daqing
1988
1140
1628
27.6
0.868 2
F14 JiangSu
1998
3051
7.5
11.8
0.832
102.5 1
Block228 Jilin
2000
1500
0.35
12.3
0.787 70
F48P Daqing
2003
1742
1.4
14.5
0.805 86
Caoshe JiangSu
2005
3065
241
21.3
0.822
110
H87-2 Jilin
2006
2300
0.36 10
0.737
108.5
H59Jilin
2007
2400
2.65
11.44
0.762 97 5
F48 Daqing 15
S101 Daqing
2120
1.06
10.65
0.79
108 8
G89-1 Shengli
3000
4.7 13
0.739
B14 Daqing
2009
1730
1.12
13.5
0.777
Sha-I ZY(Sinopec)
2008
690 22
0.76 12
H79 Jilin
0.77
103 18
YYT JL(Sinopec)
2010
5-10
>40
Jingbian (Yanchang)
2012
1600
0.858 80 16

6. CO2-EOR Projects in China
CO2-EOR pilot in block Hei-59 in Jilin oilfield
Hei-59: Low permeability reservoir
Porosity: 13%
Permeability: 3 mD
Injector: 6
Producer: 24
Target Zone: Qing-1 Member
Reservoir depth: 2445 m
Injection Rate: 40t/d per well (liquefied CO2)
Maximum injecting pressure at wellhead : 22 MPa
Average oil production: 3.3 t/d, more than 1.8 t/d of water flooding
Cumulative CO2 injection: thousand tons
Storage efficiency: 90%

7. CO2-EOR Projects in China
Sinopec’s CO2-EOR pilot
G89-1: Low permeability reservoirs
Porosity: 13%
Permeability: 4.7 mD
Gas Injection time: January 2008
Producer : 14 wells
Gas injection: 11 wells
Injection pressure: MPa
Injection rate: tons/well
Oil production: 5.2 t/d (central well)
Bottom flow pressure of producer: 15 MPa
Bottom flow pressure of injector: 23.3 to 27.4
Cumulative CO2 injection: 128 thousand tons

8. CO2-EOR Projects in China
Sinopec’s CO2-EOR pilot
G89-1 is performing CO2 flooding, recovery percentage will arrive 26.1% after 15 years, recoverable oil incremental 17.2% more than primary oil recovery

9. CO2-EOR Projects in China
Yanchang’s CO2-EOR pilot
Jingbian’s CO2-EOR project began in Sep., 2012,
Permeability: 1mD
Porosity: 12%
Reservoir Pressure：13MPa
Injector well depth, 1600m
Injector pressure, 8 MPa
Injection rate：18 t/d/well
Cumulative CO2 injection 14,000 tons by June of 2014, the project will be extended to 16 injection well groups by this end of the year, estimating injection CO2 will be 200,000 tons, CO2 will be stored 120,000 tons

10. Distribution of main oil and gas basins in China
Prospect on CO2-EOR
Developing coal chemical industry will be able to capture the high purity CO2, which has a big capture potential in western China
PetroChina has low permeability oilfields in western China, the oilfields can provide great potentials for CO2-EOR and storage
Also, Petrochina will plan to implement CO2-EOR projects in the Erdos basin and Sungar Basin in future five year
Distribution of main oil and gas basins in China
Xinjiang oilfield
Changqing oilfield

11. Prospect on CO2-EOR
According to Sinopec report, CO2-EOR technology covers low permeability reserves 300 million tons in Shengli Oilfield, enhanced oil recovery 1.5% per year, CO2 needs are 4.35 million tons from Shengli Power Plant
Sinopec’s original plan will built up two CCUS demonstration projects, one is 1 million tons per year with flu gas from Shengli coal-fired power plant, and the another is 500 thousand tons per year for CO2-EOR with coal gas from Sinopec Qilu Petrochemical plant
Transportation distance: km
Pressure: 4 MPa
The project forced stopping because the low oil price started from end of 2014 to now
Yanchang’ original plan will extend CO2-EOR pilot in Wuqi in the end of 2015, estimating CO2 injection will be 300,000 tons, CO2 stored will be 180,000 tons

12. Prospect on CO2-EOR
13 billion tons oil reverse can be suitable for CO2-EOR
Estimated EOR is 10-15%, and 1.92 billion tons oil can be recovered
CO2 storage capacity can reach billion tons
CO2-EOR and storage Capacity Evaluation in China（Billion tons）
OOIP
Enhanced Oil
CO2 Storage Capacity
Miscible Reserves
7.0
0.72
Immiscible Reserves
6.0
0.48
Total
13.0

13. Conclusions
CO2 Capture and injection into oil reservoirs for EOR is a good practical and economical way for reducing CO2 emissions
A certain potential CO2 storage capacity lies in China, along with oil production growth through the application of CO2-EOR
China’s companies have developed a set of CO2-EOR technology in the recent years, however, China’s companies and research institutes are still willing to join international efforts in CCUS to make due contribution for dealing with global climate change

14. Thank you! douhongen@petrochina.com.cn
P.O.Box 910, Beijing, , China