摘要
页岩气是非常规天然气资源勘探的重要领域,掌握其地质理论是进行页岩气开采的基础。国内学者做了中美页岩气聚集机理条件及地质条件相似性对比研究,对国外页岩气地质理论进行了总结,发现我国页岩气聚集地质条件优越,形成了对页岩气的生成、运移、聚集和成藏等方面的初步认识:页岩气成藏体现出了非常复杂的多机理递变特点,具有自生自储的成藏特征;控制页岩气成藏的主要因素有:总有机碳含量、有机质成熟度、岩石矿物成分、地层压力、温度、优质泥页岩厚度和分布面积等。分析研究页岩气成藏特征,形成聚集机理与富集规律,有助于更好地评价和开发我国的页岩气资源。
Shale gas exploration and development is very important in the unconventional natural gas exploration and development field and to know well its geological theory is an important foundation for its exploration and development. Researchers in China have carried out comparative studies on the similarity of shale gas gathering mechanism conditions and geological conditions in China and America and summarized foreign shale gas geology theories. They point out that good geology conditions for shale gas gathering exist in China and such initial common view on shale gas generation, migration and accumulation conditions has been formed as that shale gas generation and accumulation reflects very complicated multiple-mechanism alternation characteristics and has features of self-generation and self-accumulation. Main factors for controlling shale gas accumulation includes total organic carbon content, organic matter maturity, rock mineral composition, formation pressure and temperature, high quality clay shale thickness and distribution area, etc. Analytical investigation on shale gas accumulation features, generation and accumulation mechanism and enrichment regularity is conducive to better evaluate and develop shale gas resources in China.
出处
《天然气与石油》
2011年第3期54-57,88,共4页
Natural Gas and Oil
关键词
页岩气
地质特征
成藏机理
赋存状态
Shale gas
Geologic feature
Accumulation mechanism
Reservoir state
