台中彰化沿岸CCS場址調查;CCS Site Investigations along the Taichung-Changhua Coast

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Title:	台中彰化沿岸CCS場址調查;CCS Site Investigations along the Taichung-Changhua Coast
Authors:	林君翰;Lin, Chun-Han
Contributors:	地球科學學系
Keywords:	二氧化碳封存;場址調查;高解析震測;CCS;Site Investigation;High Resolution Seismic
Date:	2019-07-23
Issue Date:	2019-09-03 14:48:44 (UTC+8)
Publisher:	國立中央大學
Abstract:	國家能源政策雖然以綠能取代核能，但綠能非基載能源，仍需仰賴化石能源發電來穩定電源供應，因此，火力發電在未來國家的能源結構仍將扮演舉足輕重的角色，若能採用CCS技術將二氧化碳即時捕捉並且就地封存，可同時解決火力發電為人詬病之汙染排放問題，亦可以維持國家能源結構穩定。本研究匯集台中彰化海岸的彰濱工業區及台中火力發電廠的震測及地質資料，比較兩地作為CCS場址的優劣及適切性。本研究利用高解析反射震測法，調查適合二氧化碳封存之地下構造，作為鑽井及未來監測的參考基準。野外使用震盪震源，240波道，4m間距，30重合，主要沿海岸線共實施11條反射震測測線，總長度30公里，並利用中油王功井、台電彰濱井等井資料做為震測資料解釋的依據，推估未來台中港井可能的地下地層細部構造。本研究獲得以下結論：1) 利用中油王功井及台電彰濱井獲得的地層井柱，預估台中港區的中港井可能的地層井柱，並經由本研究的震測剖面反射層分布，加以佐證。2)彰濱區六條交叉測線，建立彰濱區完整的地下三維地層分布，全區地層走向北偏東8度，東傾3.8度。上段封存層在深度2140~2450m，中段在2510~3140m，下段在3300~3500m。3)中港區五條測線，震測反射相都很類似，經與預估之中港井地層比對，獲得上段封存層在深度2300~2700m，中段在2850~3350m，下段在3500~3900m。4)中港區之地層比彰濱區深250~400公尺，可用的層厚度多約50公尺，且反射相指出有更佳的砂岩層分布。5) 本測區構造單純，地層平整，除了最下部的先中新世基盤外，未發現斷層，地層起伏也很小，此沈積地層之條件使得本區適合作為CCS封存場址。 ;The national energy policy aims at replacing nuclear energy with green energy. However, green energy is not a base-load energy, it still needs to rely on fossil energy to stabilize the power supply. Therefore, fossil-fuel power generation will continue to play an important role in the future. The technology which captures carbon dioxide in real time and seals it on site can simultaneously solve the problem of pollution, and also maintain the national energy structure. This study collects the seismic and geological data of the Jangbin Industrial Area and the Taichung Power Plant along the Taichung-Changhua coast. We will compare the advantages and disadvantages of the two sites as CCS sites This study used high-resolution reflection seismic survey to investigate underground structures suitable for carbon dioxide sequestration as a reference for drilling and future monitoring. In the field, the vibrator source is used with 240 channels, 4m spacing, and 30 folds. A total of 11 reflection seismic lines along the coastline are collected, with a total length of 30 kilometers. The well data from CPC’s WangGon Well and Taipower’s JangBin Well are used to predict the future Taichung-Port Well, which further helps the interpretation of the seismic data gathered at the Taichung Port area. The following conclusions are obtained: 1) Using the stratigraphic formations revealed by WangGong Well and JangBin Well, the possible stratigraphic patterns of the future Tachung-Port Well are estimated, which are confirmed by the seismic reflection profiles of this study. 2) Six cross-tied surveying lines in the Jangbin Area establish a complete 3D underground stratigraphic distribution. The strata have a strike of north 8 degrees to east and a dip 3.8 degrees east. Three CO2 storage layers are at the depths of 2140~2450m, 2510~3140m, and 3300~3500m. 3) Five survey lines in the Taichung-Port Area expose similar seismic reflection phases. After comparing with the Taichung-Port Well, its CO2 storage layers are at the depths of 2300~2700m, 2850~3350m, and 3500~3900m. 4) The stratum of the TaiChung-Port Area is 250~400 meters deeper than that of the Jangbin Area. However, the available layer thickness is about 50 meters larger, and the reflective phase indicates better sandstone content. 5) The survey area has simple structure and the stratum is flat. No faults and layer disturbances are found. The conditions of the sedimentary structure make the area suitable as a CCS site.
Appears in Collections:	[Graduate Institute of Geophysics] Electronic Thesis & Dissertation

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