Gong Jianming, Chen Jianwen, Li Gang, Zhang Xunhua, Li Jipeng, Huang Fulin. Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example[J]. Acta Oceanologica Sinica, 2003, (4): 569-576.
Citation:
Gong Jianming, Chen Jianwen, Li Gang, Zhang Xunhua, Li Jipeng, Huang Fulin. Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example[J]. Acta Oceanologica Sinica, 2003, (4): 569-576.
Gong Jianming, Chen Jianwen, Li Gang, Zhang Xunhua, Li Jipeng, Huang Fulin. Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example[J]. Acta Oceanologica Sinica, 2003, (4): 569-576.
Citation:
Gong Jianming, Chen Jianwen, Li Gang, Zhang Xunhua, Li Jipeng, Huang Fulin. Hydrocarbon test in lower-layer atmosphere to predict deep-sea petroleum or hydrate in the Okinawa Trough: an example[J]. Acta Oceanologica Sinica, 2003, (4): 569-576.
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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