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| 1 | 海洋天然气水合物发育顶界的模拟计算显示文摘天然气水合物顶界的确定对于其资源评价十分重要,但目前还没有很好的方法来确定.本文利用在甲烷-硫酸根(SMI)界面硫酸根与甲烷所消耗的量相等和水-天然气水合物二相体系甲烷溶解度模型,建立了水合物顶界埋深计算的数学模型,并考虑硫酸根氧化有机质和微生物原位甲烷生成的影响.计算的ODP1245和IODP1327站位水合物顶界埋深分别为53mbsf和83mbsf,与钻探获得的水合物顶界埋深相吻合. | 曹运诚 陈多福 | 2014 | 地球物理学报2014，57，2： | 9 |
| 2 | Numerical studies of gas hydrate evolution time in Shenhu area in the northern South China Sea显示文摘Although the Shenhu sea area has been a topic and focus of intense research for the exploration and study of marine gas hydrate in China, the mechanism of gas hydrate accumulation in this region remains controversial. The formation rate and evolution time of gas hydrate are the critical basis for studying the gas hydrate formation of the Shenhu sea area. In this paper, based on the positive anomaly characteristics of chloride concentration that measured in the GMGS3-W19 drilling site is higher than the seawater value, we numerically simulated the gas hydrate formation time of GMGS3-W19 site. The simulation results show that the gas hydrate formation rate positively correlates with the chloride concentration when the hydrate reaches the measured saturation. The formation time of gas hydrate in the GMGS3-W19 site is approximately 30 ka. Moreover, the measured chloride concentration is consistent with the in-situ chloride concentration, indicating that the formation rate of gas hydrate at the GMGS3-W19 site is very fast with a relatively short evolution time. | Yun-xin Fang Jing-an Lu Jin-qiang Liang Zeng-gui Kuang Yun-cheng Cao Duo-fu Chen | 2019 | China Geology2019，2，1： | 6 |
| 3 | 水合物脊ODP1247站位天然气水合物藏的甲烷来源和成藏过程模拟显示文摘海洋天然气水合物体系天然气水合物成藏受甲烷供给及埋藏的控制.根据海洋天然气水合物体系甲烷的质量守恒,建立了海洋环境沉积物孔隙水溶解甲烷对流和扩散作用及微生物原位产甲烷作用供给甲烷形成天然气水合物的数值模型,对水合物脊ODP1247站位天然气水合物成藏过程进行了模拟研究,结果表明该站位孔隙水溶解甲烷的对流和扩散作用是天然气水合物成藏过程中最主要的甲烷供给方式,微生物原位生成甲烷供给的比例很小,并且在1.67 Ma以来天然气水合物藏受沉积速率变化而动态变化,但幅度不大,至今形成的水合物饱和度约0~3%,与钻探确定的饱和度接近. | 郑子涵 曹运诚 陈多福 | 2017 | 地球物理学报2017，60，8： | 4 |
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