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題名 | 臺南盆地生油潛能評估初步研究=The Preliminary Study of Hydrocarbon Generation Potential in the Tainan Basin |
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作者 | 吳素慧; 郭政隆; 邱仲信; 翁榮南; 傅式齊; 張金榮; 李焜發; | 書刊名 | 探採研究彙報 |
卷期 | 21 1998.11[民87.11] |
頁次 | 頁410-424 |
分類號 | 457.2 |
關鍵詞 | 地化模擬; 臺南盆地; 生油潛能; Geochemical modeling; Tainan basin; Petroleum potential; |
語文 | 中文(Chinese) |
中文摘要 | 本研究以連結義竹斷層平臺部份∼北部凹陷∼中央隆起帶∼南部凹陷(A-A'線與 B-B' 線)西北-東南一長剖面及參考井進行之地化模擬,初步瞭解其生油氣潛能。 IES Petro-Mode 軟體及 IFP Matoil 軟體模擬結果顯示, 北部凹陷下部中新統與漸新統正 處於油窗範圍內,其於約 3600 公尺進入油窗,約 4800 ∼ 5200 公尺達產油氣尖峰期;中 央隆起帶上西北邊低區 C-6 號井約 3500 公尺進入油窗; 南部凹陷近中央隆起邊緣帶約 3800 ∼ 4200 公尺進入油窗,約 4800 ∼ 5800 公尺達產油氣尖峰期。 於模擬的油窗範圍內生油岩特性分析顯示,下部中新統與漸新統頁岩油母質有機物類型為產 氣帶凝結油第Ⅲ類型,有機富集度於北部凹陷下部具普通至良好級產氣與產氣帶凝結油生油 岩;中央隆起帶西北邊 C-6、8 號井所在低區具普通級至近於良好級產氣帶凝結油生油岩; 南部凹陷近中央隆起邊緣帶為少量至普通級產氣帶凝結油生油岩。 |
英文摘要 | Two dimensional geological models have been built through interpreting two NW trending seismic profiles, which pass through the platform of the Yichu Fault, Northern Depression, Central Uplift and Southern Depression. Conditioned by some drilled wells, the hydrocarbon generation potential associated with these geological models has been simulated by applying the IES Petro-Mode and the IFP Matoil geochemical modeling softwares. Based on our result, oil window zone starts from 3600M approximately in the Northern Depression, 3500M in the northwestern structure low region of the Central Uplift and 3800 to 4200M in the Southern Depression near by the Central Uplift. The zone reaching oil generation peak distributes between 4800 to 5200M in the Northern Depression and 4800 to 5800M in the Southern Depression near by the Central Uplift. The source rock evaluation within the simulated oil-window indicates that the kerogen type of Lower Miocene through Oligocene Shale is type Ⅲ which is gas prone or gas prone with condensate and its organic richness within Northern Depression is fair to good. The lower part of the Northern area of Central Uplift where the C-6 and C-8 wells located processes fair to near good, gas prone with condensate source rocks and poor to fair. The gas prone with condensate source rocks are found near border of southern Depression and Central Uplift. |
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