天然气水合物在海洋钻探区域的赋存特征

OCCURRENCE OF GAS HYDRATE IN SOME MARINE DRILLING AREAS

介绍了天然气水合物的形成、稳定条件、分布情况及勘查研究进展,重点介绍了国际上典型天然气水合物钻探项目的目标及成果。通过ODP164航次、ODP204航次、墨西哥湾联合行业项目、日本、印度和韩国的天然气水合物钻探实例研究,分析了海洋天然气水合物在钻探区域的分布特征,阐述了如何利用天然气水合物勘查技术识别天然气水合物资源,部署井位钻获天然气水合物实物样品。给我国天然气水合物钻前井位部署工作提供一些参考性的建议。

Gas hydrate is a very important marine energy source in the future. In this paper, we made a brief introduction to the formation, stabilization and distribution of gas hydrate and the present re-search status and future trend in a global point of view. Emphasis is put on the mandate and results of some world known gas hydrate scientific drilling programs. Research programs, such as ODP164, ODP204, Gulf of Mexico Gas Hydrates Joint Industry Project, Japan Gas Hydrates Drilling Program, India Gas Hydrates Drilling Program and Korea Gas Hydrates Drilling Program, are introduced and described. The occurrence of gas hydrate in the areas of the drilling program remains the major con-cern of the scientific and industrial societies. It is also the focus of this paper. Besides, exploration techniques and drilling target selection expertise are discussed.