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題 名 | 澎湖海域及其附近先中新統油氣生成分析=The Oil and Gas Generation of the Pre-Miocene Formation in Penghu Areas |
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作 者 | 吳榮章; 吳素慧; 傅式齊; | 書刊名 | 探採研究彙報 |
卷 期 | 20 1997.11[民86.11] |
頁 次 | 頁61-93 |
分類號 | 457.2 |
關鍵詞 | 地化; 油氣生成; 先中新統; 澎湖海域; 臺灣; Oil and gas generation; Pre-miocene; Penghy areas; Offshore Taiwan; |
語 文 | 中文(Chinese) |
中文摘要 | 本文以前人研究之架構及分析資料,再配合本區震測層序分析、震測相與古沉積環 境及盆地架構與模型等子題,增加採集一些岩心標本,加強補充一些地化分析,對本區 及附近之油氣生成做進一步探討,以為附近地區從事有利目標構造鑽探之參考。 CDA-1及CDA-3井先中新統地層由地化分析資炓,目前已知最佳生油岩為位於E3 層序地層,此部份之地層除位於不整合面下靠近E3頂部附近之生油岩有機富集度較差為 少量級或貧乏級外,其餘顯示優良級且已進入油窗範圍,屬產油帶氣之有機物類型,經 研究CDA-1井震測層序E3地層具成熟之優良級產油帶氣油氣生成潛能生油岩。而CDA- 3井之E3層序地層亦屬本區近成熟優良/極優良級有機富集度產油為主部份帶產氣之最 佳生油岩。 綜合而言,澎湖地區先中新統以CDA地區最具生油潛能,以區域內E3層序地層選 擇良好生油岩雙程走時厚度300 msec等厚線分佈範圍可估算其原油原始蘊藏量。而其南 邊構造與地層之聯合封閉其油氣聚集潛能不容忽視。 |
英文摘要 | Four sets of source rocks are present in the Pearl River Mouth Basin. The continental source rocks of the Wenchang and Enping Formations are the major source rocks, and those of the Zhuhai and Zhujiang Formations are the secondary source rocks. The Wenchang Formation is mainly composed of lacustrin shale and the Enping Formation is mainly composed of swamp facies coal series. Both Formations have high organic matter richness and contain type Ⅱ kerogen. These source rocks are in the mature stage in most area of the Pearl River Mouth Basin and show good hydrocarbon generation potential. The Huizhou, Baiyun and Xijiang Depressions and the west Lufeng sag have been proven containing source potential for the commercial oil fields Hydrocarbon correlation indicates that both long and short distance migrations exist in this basin. |
本系統中英文摘要資訊取自各篇刊載內容。