石油系統有機材料特性及熱成熟度與油氣潛能之關係探討：以澳洲西北海域為例; A Study of the Relationship between Hydrocarbon Potential vs Organic Material and Maturity in Petroleum System: a case study from NW Australia

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题名:	石油系統有機材料特性及熱成熟度與油氣潛能之關係探討：以澳洲西北海域為例;A Study of the Relationship between Hydrocarbon Potential vs Organic Material and Maturity in Petroleum System: a case study from NW Australia
作者:	楊尊忠;Tsun-Chung Yang
贡献者:	應用地質研究所
关键词:	熱成熟度;石油系統;鏡煤素;油氣潛能;Thermal Maturity;Petroleum System;Vitrinite;Hydrocarbon Potential
日期:	2005-07-01
上传时间:	2009-09-22 09:58:51 (UTC+8)
出版者:	國立中央大學圖書館
摘要:	基於石油探勘的需求，石油系統探勘方法結合了石油地質學、地球物理探勘及應用有機地球化學，發展出一套更有系統更有效的油氣潛能評估方法。而其中應用有機地球化學則是應用包括Rock-Eval熱裂分析、TOC量測、鏡煤素反射率量測、煤素質組成分析以及其他相關實驗，以提供生油岩富集度、油母質類型及熱成熟度等的有效資訊。這些資訊對於評估石油系統中生油岩的油氣潛能及相態是很有用的，而這些資訊來自於露頭或鑽井樣本所做的地化分析。本研究乃從應用有機地球化學的角度，探討材料特性及熱成熟度與油氣潛能的關係，以澳洲西北海域鑽井岩屑樣本為主，進行地化實驗分析，包括煤素質組成分析、元素分析、鏡煤素反射率量測及熱裂分析，利用所獲得的材料特性及熱成熟度資料，評估澳洲西北帝汶海礦區的油氣潛能，同時驗證材料特性及熱成熟度與油氣潛能的關係。另外，為了提供油氣潛能評估的對照以及比較應用有機地球化學在鑽井岩屑樣本及煤樣上的適用性，本研究亦採集台灣中新世煤層樣本進行同樣的應用有機地球化學實驗。研究結果顯示，澳洲礦區初步評估為有產油/氣的潛能，但油氣產量及開發成本應作進一步評估。 Due to the needs of petroleum exploration, the petroleum system exploration method is developed by combining petroleum geology, geophysics exploration and applied organic geochemistry. Organic geochemistry studies the kerogen type, organic richness and thermal maturation of the source rock. Various experiments such as Rock-Eval pyrolysis, total organic carbon detection, vitrinite reflectance measurement and maceral composition analysis are performed to provide the needed information for exploration. This research discussed the relationship of material characteristics and thermal maturity versus hydrocarbon potential from the viewpoint of applied organic geochemistry. We chose well-drilled chip samples from NW Australia to proceed four analytic experiments including maceral composition analysis, elemental analysis, vitrinite reflectance measurement and Rock-Eval pyrolysis. According to our data, the hydrocarbon potential of the study area could be assessed. Meanwhile, the relationship of material characteristics and thermal maturity versus hydrocarbon potential could be testified. Furthermore, in order to offer a contrast of hydrocarbon potential assessment and compare the feasibility of applied organic geochemistry between well-drilled chip samples and outcropped coal samples, we also collected some coal samples from the Western Foothill Belt of Taiwan to proceed the same experiments. The results of the study show that the study area in Australia possessed some oil/gas potential. However, more detailed hydrocarbon potential assessment in this area will still be needed in the future.
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