查詢結果分析
來源資料
頁籤選單縮合
題 名 | 臺灣海域鑽遇地層的碳氫化合物氣體特徵及意義 |
---|---|
作 者 | 翁榮南; 陳德權; | 書刊名 | 石油鑽採工程 |
卷 期 | 44 2003.12[民92.12] |
頁 次 | 頁97-103 |
分類號 | 457.2 |
關鍵詞 | 石油探勘; 地球化學; 罐頂氣體分析; 岩屑氣體; Oil exploration; Geochemistry; Headspace gas analysis; Cutting gas; |
語 文 | 中文(Chinese) |
中文摘要 | 臺灣海域鑽遇地層岩屑的碳氫化合物氣體分析結果顯示臺西盆地新竹海域及北方海域下部中新統含煤地層氣體含量相當高,是重要的產氣源岩。下部中新統鏡煤素反射率0.4%-0.5%開始出現丙烷以上氣體,開始生成熱生成氣,部份火成活動對地層中的成熟度有增強作用。臺南盆地北部凹陷下部中新統鑽遇地層的碳氫化合物氣體含量普遍低,有機富集度不高。臺灣地區大部分鑽遇地層的C5+含量偏低,顯示生油岩有機質以產氣型為主。岩屑罐頂氣體技術與泥漿測錄的分析結果具有相似的趨勢。 |
英文摘要 | Fresh cuttings collected from drilling wells, offshore Taiwan, were analyzed for hydrocarbon gases by using the headspace gas analysis technique. The content and chemical composition of the hydrocarbon gases were applied to evaluate the hydrocarbon generation potential, including organic richness, maturation level and organic matter type, of the encountered formations. The Lower Miocene coalbearing formations in northrn and western offshore area show high content of gases, indicating their potential for natural gas generation. The Miocene in the northern depression of the Tainan Basin shows relatively less gas generation potential compared to the offshore Taihsi Basin, probably due to the lack of coal-bearing formations. The threshold of the gas generation is usually at the formation with Ro value of 0.4-0.5% based on the occurrence of C3+ hydrocarbons. Major organic matter in all encountered formations in gas-prone, judged from their low C5+ content. |
本系統中英文摘要資訊取自各篇刊載內容。