查詢結果分析
來源資料
頁籤選單縮合
題名 | 臺灣西北部油氣之地化特性=Geochemical Characteristics of Hydrocarbons in Northwestern Taiwan |
---|---|
作者 | 林麗華; 郭政隆; Lin, Li-hua; Kuo, Cheng-lung; |
期刊 | 探採研究彙報 |
出版日期 | 19981100 |
卷期 | 21 1998.11[民87.11] |
頁次 | 頁286-303 |
分類號 | 457.2 |
語文 | chi |
關鍵詞 | 臺灣西北部油氣特性; 崎項; 青草湖; 寶山; 錦水; 鐵砧山; 出磺坑; CBK; Chuhuangkeng; Chinshui; Chingtsaohu; Chitin; Teihchenshan; Paoshan and CBK gas/oil field; Hydrocarbon migration; |
中文摘要 | 本文研究臺灣西北部各油氣田之天然氣與凝結油之地位特性, 包括氣油比之變化 ,C ���宏P同位素之變化,Pristane/phytane 以及生物指標成熟度與有機相之變化, 結果 發現各油氣田之氣油比與成熟度由出磺坑往錦水、鐵砧山遞降也由出磺坑、錦水往寶山、青 草湖和 CBK 遞降,此與下部中新統之生油岩成熟度變化趨勢相符。 各油氣田之油樣中含海相有機物之比例由鐵砧山氣田與錦水氣田往崎頂、 青草胡、 寶山和 CBK 地區漸減,此與下部中新統煤層增多與增厚之趨勢相符,也與沉積環境之變化相符。 綜合以上兩大重點,推測臺灣西北部之油氣移聚以短距離側向移棲配合垂直移棲而成,蓬萊 造山運動所形成之各構造封閉愈靠近新竹-苗栗的生油岩熱成熟中心,其儲集油氣之機率愈 高,建議在此熱成熟中心附近繞續尋找有利油氣儲聚之各種構造封閉。 |
英文摘要 | The geochemical characteristics of natural gas and condensate, including gas to oil ratio, C ���� hydrocarbon content in natural gas, Carbon isotope ratio, pristane to phytane ratio and biomarker distribution from the gas/oil fields in northwestern Taiwan were analyzed. The results show that the gas to oil ratio and the thermal maturity of the hydrocarbons are the highest in the Chuhuangkeng gas field and decrease gradually toward the north and northwest, very similar to the variation in maturity for the Lower Miocene source rocks. The percentage of marine organic input is the highest in the condensates from the Teihchenshan and Chinshui gas fields and decreases gradually toward the Chitin, Chingtsaohu, Paoshan and CBK fields; the variation is similar to that of depositional environment of the Lower Miocene source rocks. This is commensurate with the trend of thickening of the Lower Miocene coal beds. Based on the above two points, we propose that the hydrocarbon accumulation in northwestern Taiwan is mainly through short distance and vertical migration. The closer of the structure traps to the center of highly mature source rocks in the Hsinchu-Miaoli the greater opportunity would be to trap oil and gas. We suggest that searching for various favorable structure traps around this center of thermal maturation should be continued. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。