地质通报2011，Vol.30Issue(12)：1910-1917,8.
青海省天峻县木里地区天然气水合物地震响应特征
Seismic characteristics of natural gas hydrate in Muli area, Tianjun County, Qinghai Province
摘要
Abstract
Natural gas hydrate is a new potential energy source distributed widely in epicontinental seabed sediments and continental permafrost. Physical samples of natural gas hydrate were collected for the first time by drilling in the permafrost region of the Qilian Mountain in 2008. An experimental study of the seismic reflection method in Muli area was carried out for the detection of natural gas hydrate in 2010. Based on a comprehensive analysis and interpretation of seismic, well log and geological data, the authors consider preliminarily that reflections formed by natural gas hydrate media along the seismic profile possess characteristics of low velocity and low amplitude as well as high frequency, and that the distribution of natural gas hydrate is associated with the deep fault zone. As for the formation mechanism of gas resources, it is held that the gas moves up along the deep fault and is enriched and closed by the permafrost, and the gas hydrate deposits are formed under the suitable temperature-pressure conditions.关键词
天然气水合物/地震数据/纵波速度/断裂构造/冻土区Key words
gas hydrate/ seismic data/ P-wave velocity/ fault structure/ permafrost region分类
天文与地球科学引用本文复制引用
徐明才,刘建勋,柴铭涛,王广科,高景华,王小江,张保卫..青海省天峻县木里地区天然气水合物地震响应特征[J].地质通报,2011,30(12):1910-1917,8.基金项目
中国地质调查局项目《青藏高原冻土带天然气水合物调查评价》(编号:1212010818055) （编号:1212010818055）
