水力输送法开采海底浅层天然气水合物技术研究  

Hydraulic Mining Technology Used for Exploitation of Marine Gas Hydrates

作　　者：窦斌[1,2] 蒋国盛[1] 秦明举[1] 吴翔[1] 高辉[1] 

机构地区：[1]岩土钻掘与防护教育部工程研究中心,武汉430074 [2]中国地质大学工程学院,武汉430074

出　　处：《地质与勘探》2009年第4期427-430,共4页Geology and Exploration

基　　金：国家自然科学基金项目(编号:50504012);国家自然科学基金项目(编号:50844062);中国博士后科学基金项目特别资助(编号:2008010274);中国博士后科学基金项目(编号:20080430124);教育部国际合作项目(编号:2008052017)联合资助

摘　　要：海洋天然气水合物占全球水合物总储量的99%,海洋天然气水合物大部分沉积在海底浅层没有良好的覆盖层,无法采用开采传统油气资源的方法进行开采。为了开采海底浅层天然气水合物,分析了海洋天然气水合物的存在类型及地质特征,探讨了目前开采海洋天然气水合物的理论方法及局限性。根据海底天然气水合物成矿的地质特点及水合物的物理特性,提出了以水力输送技术为主要理论的海洋浅层天然气水合物开采方法。该方法克服了其他方法开采海底天然气水合物面临的技术困难,为海洋天然气水合物的开采提供了技术基础及理论支撑。In the world about 99 percent gas hydrate reserves is marine gas hydrates, and the vast majority of gas hydrates is hosted in seafloor sedi- ments, which has not good/solid cover layers. All these gas hydrates can not be exploited by using traditional mining methods of oil and gas wells. In order to exploit marine gas hydrates from shallow depth of seafloor, the existence state and geological features of marine gas hydrates were studied and the theory, techniques and the limitations of the current marine gas hydrate exploitation were discussed. According to geological characteristics and physical properties of marine gas hydrates, we propose a new technique to extract natural gas from marine gas hydrates, which is based on the theory of hydraulic mining technology. This method overcomes the technical difficulties of other methods to exploit marine gas hydrates and provides a technical foundation for extracting gas form marine gas hydrates.

关 键 词：天然气水合物 存在类型 水力输送 开采技术 

分 类 号：TE1[石油与天然气工程—油气勘探]