Indonesia s CCS Storage Availability and Options for CCS Biomass

Transcription

1 Dr. Usman and Utomo P.I. R&D Centre for Oil and Gas Technology Indonesia s CCS Storage Availability and Options for CCS Biomass

2 DISCLAIMER STATEMENT All copyright and other (intellectual property) rights in all text, images and other information contained in this presentation are the property of PPPTMGB. Permission should be sought from PPPTMGB before any part of this presentation is reproduced, stored or transmitted by any means.

3 Agenda Introduction The Most Suitable Sedimentary Basins for CO 2 Storage in Indonesia Available Storage Capacity Options for CCS Biomass Conclusion Page 3

4 Introduction Background Indonesia has committed to reduce its GHG s by adopting the National Action Plan Addressing Climate Change (RAN-PI) through Presidential Decree No.61 /2011. Current efforts are considered still insufficient to achieve 26% CO 2 emissions abatement target by 2020: energy mix improvements the switch to less-carbon intensive fuels renewable resources deployment Maximizing the national potential of CCS. To improve energy security (CCS-EOR). Page 4

5 Geological Formations Available for CO 2 Storage in Indonesia Depleted Oil & Gas Reservoirs Saline Formations Coal Seams Proven traps known to kept liquids and gassess for million years. Mostly located in Sumatera, Kalimantan and Java, where more than a century of intensive petroleum exploitation has been commenced. Its wide distribution and size provides high potential for storing the CO 2. Preliminary studies indicated this formations exist in Natuna and South Sumatera basin. Higher affinity to CO 2 than CH 4 offers more secure trapping mechanism. Almost can be found in the main islands of Indonesia, with potential resources ± 453 Tcf. Page 5

6 Screening Criteria for Specific Indonesian Sedimentary Basins Increasing CO 2 Storage Potential CRITERIA CLASSES On/Off Shore Deep Offshore Shallow Offshore Onshore Geothermal Warm (>400C/km) Moderate Cold (<300C/km) Maturity Unexploration Exploration Development Production Basin Fault Intensity Extensive Faulted and fracture Moderately Faulted and fracture Limited Faulting and fracturing Tectonic Setting For Arc Back Arc Platform Deltaic Rift Vally Depth (meter) Shallow (<1,500m) Intermediate (1,500-3,500 m) Deep (>3,500 m) Size Small Medium Large Giant Hydrocarbon Potential None Small Medium Large Giant Accessibility Inaccessible Difficult Acceptable Easy Infrastructure None Minor Moderate Extensive Modified from Bachu, 2003 and CO2CRC, 2009 Page 6

7 Most Suitable Sedimentary Basins for CO 2 Storage No. Basin Name Region Suitability Score (1-0) Page 7 1 Kutai East Kalimantan Tarakan East Kalimantan South Sumatera South Sumatera Seram Maluku North West Java West Java Barito Central-South Kalimantan Central Sumatera Riau North Sumatera North Sumatera Salawati Papua North East Java East Java Main Factor Well characterized reservoirs Favorable and well-known geological structure There is potential to reuse existing infrastructure

8 Storage Capacity Estimation in Depleted Oil and Gas Reservoirs Based on Recovery Factors Oil Reservoir: MCO 2 dco2 r R f OOIP B f V iw V pw Where: MCO 2 = CO 2 storage capacity Gas Reservoir: V = Volume MCO 2 t = ρco 2 r [R f A h φ (1 S w) V iw + V pw] dco 2 ( ) B = Density CO P and T reservoir = Formation volume factor = Porosity Page 8 Does not take the following variables into account: V iw V pw: : Volumes of injected water : Volumes of produced water Source: Bachu., et al, 2007 & Gunter, 2012 Key assumptions Volume previously occupied by the produced hydrocarbons becomes for CO 2 storage Not flooded (Secondary & tertiary recovery) Not in hydrodynamic contact with an aquifer Np/Ult ratio 55%

9 CO 2 Storage Capacity Estimates in Depleted Oil and Gas Field* Page 9

10 CO 2 Storage Capacity in South Sumatera Geological Formations T h e o r e t i c a l E f f e c t i v e (103 Fields) S t o r a g e C a p a c i t y ( G t C O 2 ) Page 10

11 CO 2 Storage Capacity Classification Techno-Economic Resource-Reserve Pyramid for CO 2 Storage Capacity Matched Capacity Practical Capacity Obtained by detailed sources with storage sites and adequate of capacity and supply rate & injectivity Value prone to changes as technology, policy, economics & etc. change Placeholder Effective Capacity for text Theoretical Capacity U n c e r t a i n t y Subset total PV by applying technical limits (geology and engineering limits) Depleted Oil and Gas Reservoirs Assumes entire volume is accessible to store CO 2 in the pore space Saline Formations and Coal Seams Modified from CSLF, 2007 Page 11

12 Options for CCS Biomass Future emissions reduction technologies may require negative emissions which can be addressed by combining biomass with CCS. Indonesia endows biomass resources with potential to generate electricity of 49807MWe (Abdullah, K., 2003). Recently, the Indonesian government had issued several policies which put higher priority on the utilization of renewable energy. Combining CCS with biomass energies in Indonesia seems potential but still is too early due to: immaturity of biomass industries. the scale of the industries is too small for supplying CO 2 and retrofitting with the capture technology. The conversion of current biomass for biofuel is still low and would be necessary to meet the increasing demand of fuel. Page 12

13 Conclusion From 60 identified sedimentary basins, Kutai, Tarakan and South Sumatera basins have higher suitability for CO 2 storage. Well-characterized reservoirs, favorable and well-known geological structure, large amount of exploration and production data, and established infrastructures are the dominant factors resulting these basins have higher suitability. More than 600 Mt of CO 2 is able to store at the depleted oil and gas reservoirs in Indonesia while the latest study indicates South Sumatera offers various of geological formation with capacities more than 10 GtCO 2. Although, biomass resources are abundance but the utilization is still low. Combining biomass with CCS will create many hurdles. The most suitable near-term deployment of CCS in Indonesia will be in the oil and gas upstream sector. The use of CO 2 for EOR provides a driver and early mover for deploying CCS particularly for Indonesia. Page 13

14 Any Questions? شكر arigatou terima kasih thanks merci gracias obrigado cпасибо 谢谢 Agency of R&D for Energy and Mineral Resources R & D C e n t r e f o r Oil a n d Gas Te c h n o l o g y Republic of Indonesia