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題 名 | 北港高區東緣先中新統生油岩潛能分析及油氣移聚初步探討=Source Rock Potential Evaluation and Hydrocarbon Migration Study of Pre-Miocene Strata in the East Part of Peikang Paleo High |
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作 者 | 郭政隆; 林麗華; 邱仲信; 吳素慧; | 書刊名 | 探採研究彙報 |
卷 期 | 21 1998.11[民87.11] |
頁 次 | 頁208-225 |
分類號 | 457.2 |
關鍵詞 | 地化; 先中新統; 北港高區; Geochemical; Pre-miocene; Peikan high; |
語 文 | 中文(Chinese) |
中文摘要 | 本文分析研究北港高區東緣先中新統生油岩潛能及其油氣移聚,此地區先中新統 生油岩潛能,以下部白堊系之上段較佳,但仍多為普通至少量級生油岩,以產氣為主。其中 以萬興-北港南邊B斷層與E斷層之間為較好生油岩區,其下部白堊系之上段有普通級帶部 份良好級產氣帶凝結油之生油岩。目前有機物成熟度約 0.7 ∼ 1.0%Ro,大約於三百萬年前 才開始生成及排放油氣。 斗南-民雄間古新統及下部白堊系上段亦可能有普通級至良好級產氣帶凝結油之生油岩區, 有機物成熟度約 0.8 ∼ 1.2%Ro,其生油岩大多於中新世至上新世才開始生成及排放油氣。 北港高區東緣大部份地區之侏羅系及白堊系底部生油岩於埔里運動時期(漸新世海退時期) ,即生成及排放油氣並多儲聚於白堊系儲集岩。 |
英文摘要 | This paper evaluates pre-Miocene source rock potential of the east part of Peikang Paleo High and studies hydrocarbon migration of the area. The upper part of lower Cretaceous strata has a better source rock potential in this area. But most of them is fair to poor grade, and the source rock dominantly gas-prone. We found that the area between B fault and E fault, south of Wanshin, has fair to good grade source rock in the upper part of lower Cretaceous strata. Those source rock may derive gas and some condensate, its organic maturity is 0.7 to 1.0%Ro. The source rock begun to generat and expult hydrocarbon from about 3 million years ago. The Paleocene and upper part of lower Cretaceous strata of the Donan-Minshon area may also have fair to good grade source rock, which may derive gas and condensate. Source rock, which generated and expulted hydrocarbon from about late Miocene to Pliocene, has an organic maturity of about 0.8 to 1.2%Ro. The source rocks of Jurassic and lower part of lower Cretaceous stratas in most area of the east part of the Peikang Paleo High generated and expulted hydrocarbon during Puli orogeny (about Oligocene age). The hydrocarbon may have accumulated in Cretaceous stratas. |
本系統中英文摘要資訊取自各篇刊載內容。