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題 名 | 國家型能源計畫甲烷水合物探測工具之開發=Survey and Sampling Tools of Methane Hydrate Field Exploration for National Energy Program |
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作 者 | 王兆璋; 陳信宏; 邱永盛; 薛炳彰; 林玉詩; 曾碩彥; 陳琪芳; 林正裕; | 書刊名 | 石油季刊 |
卷 期 | 52:2 2016.06[民105.06] |
頁 次 | 頁61-74 |
分類號 | 457.8 |
關鍵詞 | 甲烷水合物; 系統整合; 拖曳式載臺; 深海拉曼散射光譜儀; 電化學; Methane clathrate; System integration; Towed system; Deep-Ocean Raman spectroscopy; Electrochemical technique; |
語 文 | 中文(Chinese) |
中文摘要 | 甲烷水合物(Methane Clathrate, Methane Hydrate or Gas Hydrate)是在低溫與高壓條件下,水結成冰晶時在晶格中可以包絡甲烷分子。當溫度與壓力條件改變後,冰晶融化便可釋出甲烷氣。因外觀看起來像冰塊,點火即可燃燒,也俗稱為「可燃冰」。有兩種環境適合甲烷水合物存在:(1)高緯度或高海拔永凍原;(2)大陸邊緣海域深水海床之下。對於台灣的地理位置而言,在西南海域有蘊藏物理條件。在此區域有大量的高屏溪水系沈積物的注入,也有沿斷層結構遷移而上碳氫熱熟成氣體這兩個有利於甲烷水合物生成的機制。然而在亞熱帶海域溫度較高須更大的壓力條件,臺灣西南海域水深至少要550~600 公尺才足以生成甲烷水合物(1)。目前在地調所長期調查下,以聲納偵測海底仿擬反射(Bottom Simulating Reflector, BSR)已掌握西南海域甲烷水合物賦存區的相關資訊。不過這些BSR都屬於水合物存在的間接證據。要進一步確認蘊藏需要靠岩心鑽探取得海床下深層樣本。還有一些輔助的化學、生物特徵也可協助賦藏區的確認。在能源國家型科技計畫的資助下,由中山大學、成功大學、台灣大學以及大同大學組成工程團隊,研發數樣深海探測甲烷水合物賦存區所需之儀器及設備系統。這些儀器設備除了提供科學及調查團隊使用外,也因在開發過程中與業界互動合作,讓國內產業可起跨足海下科技設備市場的佈局。這個過程讓學界與業界充分發揮互補特色,也擴大了國家型科技計畫的效應。 |
英文摘要 | In 2003, Central Geological Survey (CGS), Ministry of Economic Affairs started the preliminary survey for gas hydrate in the south-west waters of Taiwan. The primary acoustic signature for the existence of gas hydrate, Bottom Simulating Reflector (BSR) was found in many regions of the waters. To further confirm and to find out the details of the distribution, CGS initiated two phases of a four-year survey project from 2004 to 2007, and 2008 to 2011. These surveys projects adopted many chemical, physical and geological instrument s or devices to search for any evidence revealing the potential sites for gas hydrate. For example, multi - channel seismic reflection (MCS), ocean bottom seismometer (OBS), heat flow probe, deep-towed sidescan sonar, subbottom profiler and resistivity measurement are some of the tools the projects used to find out indirect proofs, or geological structures suitable for gas hydrate storage. Deep-towed camera was also used to map the seafloor to locate gas hydrate outcrop or the biological/ecological features which are closely related to the seep of gas hydrate. Starting from 2012, the gas hydrate is officially announced as one of the main themes of the National Science and Technology Program (NSTP) - Energy. In other words, with the results accumulated during 2003 to 2011, the gas hydrate program moves to its next phase, pilot drillings. Either the projects hosted by CGS, or the forerun project of the Gas Hydrate NSTP, introduce many advanced survey instruments from other international ocean research institutes. For example, Deep-Towed Camera from Woods Hole Oceanographic Institution, Autonomous Underwater Vehicle and TV-guided Grabber from MARUM, will serve the survey for gas hydrate sites with good performance. These unique instruments or tools are, in general, developed jointly by the scientists and engineers to meet special needs for ocean field experiments. In other words, they are not commercial products whose services are supported by companies. In case revision or modification of the system is needed, the local scientists will not have services as good as that of commercial product. We propose to form a local engineering team to provide the technical support and custom-made developments needed by the exploration of Gas Hydrate NSTP. It is the goal of this proposal to integrate the local engineering communities and private companies in the undersea technology field to take up the responsibility of supporting gas hydrate exploration. By doing so, not only prompt help will be available at the survey project leaders request, but also opening a potential market for the undersea technology products. Moreover, the survey schedule will not be constrained by the mission time available imposed by the foreign research institutes that is typical for technology advanced groups. |
本系統中英文摘要資訊取自各篇刊載內容。