收稿日期: 2007-07-23
修回日期: 2007-09-28
网络出版日期: 2008-06-20
基金资助
中国科学院创新项目（编号：KGCX2-SW-224）；国家自然科学基金（编号：90410003）；广东省自然科学基金重点（编号：052001130）联合资助.
A DYNAMIC THEORY ON NATURAL GAS HYDRATE RESERVOIR FORMATION
Received date: 2007-07-23
Revised date: 2007-09-28
Online published: 2008-06-20
樊栓狮,关进安,梁德青,宁伏龙 . 天然气水合物动态成藏理论[J]. 天然气地球科学, 2007 , 18(6) : 819 -826 . DOI: 10.11764/j.issn.1672-1926.2007.06.819
Classification on natural gas hydrate deposits occurrence is summarized, and a dynamic theory of gas hydrate reservoir formation is put forward. According to this theory, there are three types of reservoirs: growing type (including seeping type and diffusing type), mature type and regressive type. This theory is demonstrated by three examples: the natural gas blowout when drilling in the permafrost, the hydrate cropouts in the seafloor and the gas bubbles in abyssal plumes. Then, several conclusions are drawn: there maybe exist the seeping and diffusing types of gas hydrate reservoirs which may still be growing in the Xisha trough, Dongsha continental slope of the South China Sea, west and south of Taiwan basin, and Bijianan basin; whereas in the Qiangtang basin of the Qinghai Tibet plateau may exist the regressive type gas hydrate deposit. Furthermore, the phenomenon of hydrocarbon gas leaking in the Qilian mountain areas and Junger basin indicates that these areas may ensconce gas hydrate reservoirs.
Key words： Gas hydrate; Reservoir; Classification; Dynamic accumulation; Theory.
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