臺灣西南海域甲烷水合物潛存之分析

Analysis of Exploration Potential of Methane Hydrate in Southwestern Offshore Taiwan

劉家瑄(Char-Shine Liu) ； 徐春田(Chuen-Tien Shyu) ； 史菲利(Philippe Schnurle) ； 傅式齊(Shi-Chic Fuh) ； 宣大衡(Ta-Heng Hsiuan)

《石油季刊》 36卷3期 (2000/09) Pp. 35-42

https://doi.org/10.30128/JP.200009.0005

摘要

本研究針對台灣西南海域既有震測資料進行分析，期望確認甲烷水合物之存在並擬定下一階段之測勘步驟。
本研究重新解釋該區部分資料，結果顯示，台灣西南海域之震測資料明顯具有類似甲烷水合物之特徵，且其散佈範圍甚廣，頗值得展開進一步研究。
甲烷水合物之潛能需根據其分佈面積、厚度及其孔隙率或飽和度等因素推算，本研究重新設計資料處理程序，期能降低複反射等雜波干擾，此外並嘗試應用震波特性分析、振幅一支距分析及飽和度分析等解釋技術於品質較佳之一測線，研究結果顯示，高解析度之震測資料為潛能估計之必備條件。

關鍵字

台灣西南海域 ； 甲烷水合物 ； 潛能分析 ； 海床模擬震測反射面 ； BSR

並列摘要

Seismic data acquired in the past has been analyzed in this study to confirm the existence of methane hydrate in southwestern offshore Taiwan and purpose procedures for future methane hydrate exploration. Based on results of reinterpretation of seismic data, seismic characters reflecting methane hydrate distribute extensively in the study area. It is worthwhile to proceed exploration of methane hydrate in the area in the future. Exploration potential of methane is assessed by related area distribution, thickness and porosity of strata containing methane hydrate, and saturation of methane hydrate of pore fluid. Better understanding of these parameters depend on quantitative or qualitative analyses of high quality of seismic data. To accomplish this goal, seismic processing flows were re-designed to avoid interference of multiple. Seismic character analysis, amplitude – offset analysis and analysis of methane hydrate saturation were applied on a high-resolution 160 channels seismic profile. Study results show that high- resolution seismic data are criterion for assessment of exploration of methane hydrate in the future.

並列關鍵字

methane hydrate ； BSR