摘要
地球物理测井作为传统的资源评价方法,在天然气水合物勘探中是有效评价手段。从国内外对天然气水合物的研究现状出发,简要地总结了天然气水合物的地球物理特征,介绍了利用电阻率测井和声波速度测井识别含天然气水合物储集层的方法和对天然气水合物进行评价,对现有的测井评价模型进行了讨论,指出了对天然气水合物储集层的地球物理测井评价模型还有待于进一步探讨。
In recent years, China has made investigations of marine gas hydrate, paid more attention to projects on gas hydrate, and gained great progress. How to identify and evaluate the gas hydrate is a new task for geophysicists. Though geophysical well logging is a traditional evaluation method for oil/gas reservoirs, it is also one of the most effective evaluation techniques for gas hydrates reservoirs. This paper reviews the status quo of gas hydrate at home and abroad, summarizes geophysical characteristics of the gas hydrate, and then introduces how to identify the gas hydratebearing formations by making use of resistivity log and acoustic velocity data. Of course, further work should be done to improve such geophysical well logging methods. Since the focus on gas hydrate in our country is just at the beginning in recent years, we still have a long way to go to catch up with the advanced international levels. The authors hope that the paper will help attract some attention of the geoscientists to the geophysical logging work.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2003年第2期97-102,共6页
Marine Geology & Quaternary Geology
关键词
天然气水合物
地球物理测井
识别
评价
gas hydrate
geophysical well log
identification
evaluation methods
