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題名 | 臺南盆地F構造地化模型研究=Study of the Geochemical Modeling in the F Structure of Tainan Basin |
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作者 | 郭政隆; 胡峻榕; 沈俊卿; 林麗華; 邱仲信; 周次雄; | 書刊名 | 探採研究彙報 |
卷期 | 20 1997.11[民86.11] |
頁次 | 頁309-333 |
分類號 | 457.2 |
關鍵詞 | 臺南盆地; 地化模型; Tainan basin; Geochemical model; |
語文 | 中文(Chinese) |
中文摘要 | 臺南盆地F構造生油岩特性研究結果,其漸新統及白堊系生油岩大多低於標準Type Ⅲ生油岩潛能,為普通級產氣生油岩。而F斷層北方及西方之中新統的下部至漸新統有 普通級含局部良好產氣帶凝結油之生油岩。 以Basims 軟體中數種方法模擬F構造漸新統的油氣潛能,結果發現F斷層北方、 西北方及西方有最大油氣生成量及排放量。其中北方A-1地塊佔全模擬面積13%,而油 氣生成量卻佔全部的50%,所以要重視北方凹陷油氣來源。模擬中發現以Easy Ro方 法計算有機物成熟史較TTI-Ro方法為準確。由於各有機物於不同成熟度生產油氣潛量 較不易求得,所以目前以油母質轉化率方法計算油氣生成量可能較可靠。 |
英文摘要 | The study on the source rock of the F structure in the Tainan Basin shows that the source rock potential for the Oligocene and Cretaceous formations is generally lower than that of standard type Ⅲ. The soure rock is fair for generating gas. However, in the north and west of the F fault, there exists fair source rocks within some good local belts that generate condensate in the lower Miocene and Oligocene formations. The model for the hydrocarbon potential in the Oligocene formation of the F sturcture based on several methods in the Basims, a computer simulating software, indicates that most of gas generation and expulsion are in the north, northwest, and west of the F fault. The area of A-1 in the north only covers 13 percents of the total modeling area, but the gas generation is 50 percent of the total amoung. Therefore, attentions should be paid to the source of gas that might be from the Northern Depression. It is also revealed that the method of Easy Ro is more accurate than TTI-Ro in computing the maturity history of organic matter. Because of difficulties in calculating the gas generation rate based on organic matter with different levels of maturity, it is more reliable to apply the method of Transformation Ratio to calculate the oil and gas generation. |
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