RANKING OF INDONESIA SEDIMENTARY BASINAND STORAGECAPACITYESTIMATES FOR CO2 GEOLOGICAL STORAGE  

Oleh:

Iskandar, Utomo P. ; Usman ; Sofyan, Sudarman

Jenis: Article from Journal - ilmiah nasional
Dalam koleksi: Lemigas Scientific Contributions to Petroleum Science & Technology vol. 34 no. 02 (Sep. 2011), page 149.
Topik: Ranking of sedimentary basin; Basin suitability; CO2 geological storage; Storage capacity estimates

Ketersediaan

Perpustakaan PKPM Nomor Panggil: L15 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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The various possible strategies to combat global warming are explored within a wide...rangingof efforts. Practical solutions will need to stop or even reverse the build-up of CO2in the environment by using existing technology that has not been integrated, carbon dioxide capture and storage (CCS) (Hansson, 2008). The main objectives of this study are to develop criteria for sedimentary basins ranking system in terms of their suitability for CO2 storage and estimate the storage capacity available. We adapt the method developed by Bachu (2003) to the Indonesia geological characteristics. Once the criteria has been developed and the basins ranked based on their suitability, oil and gasfields located within these basins were estimated their potential storage capacity using the methodology developed by Carbon Sequestration Leadership Forum (CSLF). From 60 identified sedimentary basins, Kutei, Tarakan and South Sumatera basins a;e respectively positioned in top three of the ranking system. Well known geological structure, adequate data, relatively stable geological structure and established infrastructures are the main factors make these basins have higher suitability. Estimation result showed from 48 fields that are considered depleted from their Np/Ult ratio (hydrocarbon cumulative production over ultimate recovery), Riau and South Sumatera region have large storage capacities which are around 229 and 144 MtC02 respectively. The ranking of Indonesia sedimentary basins can then be used in making decisions for thelarge-scale implementation ofces Project. Thepotential storage capacity might increaseas data more available. The estimates resultedfrom this study is not a conclusive estimation where degree of geological and economic uncertainty associated with a capacityestimate is stillhigh. However, from evelthis estimation shows that Indonesia has huge potential of CO2 storage in depleted oil and gas reservoirs.

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