| Gong Jianming,Chen Jianwen,Li Gang,Zhang Xunhua,Li Jipeng,Huang Fulin. 2003. Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example. Acta Oceanologica Sinica, (4):569－576 |
| Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example |
| Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example |
| Received:May 15, 2003 Revised:August 24, 2003 |
| DOI： |
| Key words:Lower-layer atmosphere hydrocarbon test C isotopic analysis deep-sea petroleum gas hydrate |
| 中文关键词: Lower-layer atmosphere hydrocarbon test C isotopic analysis deep-sea petroleum gas hydrate |
| 基金项目:This study was supported by National Fundamental Research and Development Planning Project under contract No.G20000467 |
| Author Name | Affiliation | | Gong Jianming | Qingdao Institute of Marine Geology, Qingdao 266071, China | | Chen Jianwen | Qingdao Institute of Marine Geology, Qingdao 266071, China
Ocean University of China, Qingdao 266003, China | | Li Gang | Qingdao Institute of Marine Geology, Qingdao 266071, China | | Zhang Xunhua | Qingdao Institute of Marine Geology, Qingdao 266071, China | | Li Jipeng | Hefei Institute of Petroleum Chemical Exploration, China Petroleum Exploration and Development Research Institute, Hefei 230022, China | | Huang Fulin | Qingdao Institute of Marine Geology, Qingdao 266071, China |
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| Abstract: |
| Light hydrocarbon(methane,ethane,propane,butane and CO2) test and C isotopic analysis of CO2 are conducted for over 100 lower-layer atmospheric samples from the East China Sea slope and the Okinawa Trough.The results show that the lower-layer atmosphere mainly consists of CO2 and then of CH4,and the CO2 concentrations are calculated to have a high average value of 0.87 ω/10-2,about three times that of the regional background(0.3 ω/10-2).The result also shows that the average value of C isotope-20.8×10-3 is given to the CO2,inferring that it is inorganic gas.Thus,for the future's work in the Okinawa Trough,special attention should be paid to CO2 hydrate,which is very possibly an important hydrate type. |
| 中文摘要: |
| Light hydrocarbon(methane,ethane,propane,butane and CO2) test and C isotopic analysis of CO2 are conducted for over 100 lower-layer atmospheric samples from the East China Sea slope and the Okinawa Trough.The results show that the lower-layer atmosphere mainly consists of CO2 and then of CH4,and the CO2 concentrations are calculated to have a high average value of 0.87 ω/10-2,about three times that of the regional background(0.3 ω/10-2).The result also shows that the average value of C isotope-20.8×10-3 is given to the CO2,inferring that it is inorganic gas.Thus,for the future's work in the Okinawa Trough,special attention should be paid to CO2 hydrate,which is very possibly an important hydrate type. |
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