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Case Study of Seismic Surveying and Data Processing for Small-scale Carbon Capture and Storage in the Pohang BasinNormal access

Authors: S. Cheong, N. Koo, Y.J. Kim, H.Y. Lee, B.Y. Kim and Y.J. Shinn
Event name: Near Surface Geoscience 2016 - 22nd European Meeting of Environmental and Engineering Geophysics
Session: High Resolution Engineering Seismic Studies II
Publication date: 04 September 2016
DOI: 10.3997/2214-4609.201601935
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.39Mb )
Price: € 20

Carbon capture and storage (CCS) can be manipulated in subsurface sediment, which is a porous and permeable interval, after geological characterisation. We conducted multichannel seismic surveying to image the subsurface for geological interpretation of the Pohang Basin, Korea. The length of the streamer could not stretch to a far offset, due to the limited area of Pohang Harbour. The 24-channel streamer allowed six folds, which provided a low signal-to-noise ratio for conventional seismic data. Investigation of the seismic processing enhanced the quality of the stack section, which showed a reflector at the 800-ms TWT time domain. Geological interpretation using the seismic investigation mapped the thickness of the sedimentary unit for feasible CO2 injection.

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