頁籤選單縮合
題 名 | 新竹外海及陸上地質資料整合研究=Integrated Research of Geological Data in the Hsinchu Area, Offshore and Onshore |
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作 者 | 林國安; 李長之; 黃旭燦; 郭政隆; 張資宜; 邱仲信; 吳素慧; | 書刊名 | 臺灣石油地質 |
卷 期 | 37 民94.12 |
頁 次 | 頁97-122 |
分類號 | 457.2 |
關鍵詞 | 新竹外海地區; 中新統; 儲集岩; 油母岩; 竹南地塹; 湖口地塹; Hsinchu-offshore area; Miocene reservoir; Source rock; Chunan graben; Hukou graben; |
語 文 | 中文(Chinese) |
中文摘要 | 新竹外海自始新世以後,形成一系列東西向的地塹與地壘,在地塹內堆積較厚的沉積物。並在中新世晚期以後,受蓬萊運動影響而形成構造倒轉及橫移斷層,為本區的特殊構造型態。地化分析顯示木山層與五指山層較具產油潛能,並已達成熟時期,但估計在深部與構造低區,均未超出油窗範圍。竹苗區陸海域的主要生油母岩區有四個:1.竹南地塹;2.湖口地塹;3.D凹地;4.北部煤田。 沉積相研究顯示在木山層、石底層與打鹿頁岩的地層中,都有大面積的好砂岩分佈在新竹外海,但石底層與打鹿頁岩的生油母岩成熟度尚低,自生的油氣量較少,必須靠移棲而來。木山層的各段砂體都緊鄰著生油母岩區,甚至有彼此重疊的現象,具有非常好的油氣潛能,為竹苗區陸海域的首要目標層。 木山層在竹南地塹南北的兩塊木山層砂岩體,為儲油氣條件最佳的地方,並有S、L的部份探井在試油氣以後證實能夠生產,而且發現一些可鑽探的構造,非常值得注意。 |
英文摘要 | After Eocene, a series of E-W trending horsts and graben was formed in the offshore Hsinchu area. The late-Miocene Penglai Orogeny, characterized by many inverted structured and strike-slip faulting, later affected this region. Geochemical analyses indicate that the Mushan and Wuchishan formations have favorable oil generative potential and have reached the mature stage. However, we envision that even in the deep grabens and in the low-lying structures, these formations are still situation within the oil window. In the onshore and offshore Hsinchu-Miaoli region, four significant source rock areas have been identified. 1. The Chunan Graben is the most important one, as the gas in the Tiechienshan gas field is most likely sourced by this graben. 2. The Hukou Graben, and 3. The D Depression is abound with a specific type of coal beds, that has restricted distribution of natural gas and locally containing a high percentage of carbon dioxide. 4. The coal fields in the northern part of this region, that are the source rocks for the gas in the Chuhuangkeng and Chutung areas. Based on sedimentological studies, vast areas of good sandstone are located within the Mushan Formation, Shiti Formation and the Talu Shale in the offshore Hsinchu area. Whereas the source maturity in the Shiti Formation and the Talu Shale are low, their exploration potential is limited by low self-generation and will rely on favorable migration conditions. Many sandstone bodies within the Mushan Formation are in close juxtaposition or superimposed with the source rocks, and the favorable hydrocarbon potential has made them the most important exploration targets in the onshore and offshore Hsinchu-Miaoli region. Two specific sand bodies in the northern and southern parts of the Chunan Graben are optimally located for entrapping hydrocarbons. This is further confirmed by production tests taken in exploration wells in the S, L and E blocks. Additional lead and prospects are also identified in this area, warranting significant attention. |
本系統中英文摘要資訊取自各篇刊載內容。