苏丕波, 何家雄, 梁金强, 张伟. 南海北部陆坡深水区天然气水合物成藏系统及其控制因素[J]. 海洋地质前沿, 2017, 33(7): 1-10. DOI: 10.16028/j.1009-2722.2017.07001
    引用本文: 苏丕波, 何家雄, 梁金强, 张伟. 南海北部陆坡深水区天然气水合物成藏系统及其控制因素[J]. 海洋地质前沿, 2017, 33(7): 1-10. DOI: 10.16028/j.1009-2722.2017.07001
    SU Pibo, HE Jiaxiong, LIANG Jinqiang, ZHANG Wei. NATURAL GAS HYDRATE MIGRATION AND ACCUMULATION SYSTEM AND ITS CONTROLLING FACTORS ON NORTHERN DEEP WATER SLOPE OF THE SOUTH CHINA SEA[J]. Marine Geology Frontiers, 2017, 33(7): 1-10. DOI: 10.16028/j.1009-2722.2017.07001
    Citation: SU Pibo, HE Jiaxiong, LIANG Jinqiang, ZHANG Wei. NATURAL GAS HYDRATE MIGRATION AND ACCUMULATION SYSTEM AND ITS CONTROLLING FACTORS ON NORTHERN DEEP WATER SLOPE OF THE SOUTH CHINA SEA[J]. Marine Geology Frontiers, 2017, 33(7): 1-10. DOI: 10.16028/j.1009-2722.2017.07001

    南海北部陆坡深水区天然气水合物成藏系统及其控制因素

    NATURAL GAS HYDRATE MIGRATION AND ACCUMULATION SYSTEM AND ITS CONTROLLING FACTORS ON NORTHERN DEEP WATER SLOPE OF THE SOUTH CHINA SEA

    • 摘要: 天然气水合物成藏系统目前已越来越受到油气地质专家们的重视与关注。天然气水合物运聚成藏亦遵循从烃源供给到圈闭(高压低温稳定带)中运聚成藏的含油气系统理论。天然气水合物成藏系统的构成及形成,主要取决于充足的气源供给、较好的运聚输导系统和高压低温稳定带三大要素的时空耦合配置。为了深入剖析我国南海北部深水区天然气水合物成藏系统基本特征,在近年来所获南海北部天然气水合物勘探成果的基础上,根据天然气水合物成藏系统理论,重点从天然气水合物的烃源供给、流体输导系统和高压低温稳定带及其储集系统3方面,系统分析总结了我国南海北部陆坡神狐海域、东沙海域和西沙海槽天然气水合物成藏的基本地质条件与控制因素,建立了各区域不同类型天然气水合物成藏分布模式,尤其是提出了生物成因的“渗漏型”水合物成矿类型,以期能够为加快和促进南海天然气水合物勘查提供指导和参考借鉴。

       

      Abstract: Great attention has been paid to natural gas hydrate system by petroleum geologists recently. The migration and accumulation system of natural gas hydrate fits well into the theory of petroleum system "from source to trap". The formation of natural gas hydrate system depends on the temporal and spatial coordination of a rich source, a favorable gas migration conduction system, and a high pressure and low temperature stability zone. In order to explore the basic characteristics of natural gas hydrate system in the northern South China Sea, based on the natural gas hydrate petroleum system theory as well as the gas hydrate exploration data, this paper dissected and summarized the basic geological conditions and controlling factors of gas hydrate migration and accumulation in the Shenhu area, Dongsha area and Xisha Trough on the northern slope of the South China Sea. Moreover, different gas hydrate migration and accumulation models in three areas have been established, especially for the biogenic gas leakage gas hydrate. We hope this paper can provide references and guidance in some sense for accelerating and promoting the exploration of gas hydrate in South China Sea.

       

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