油页岩是一种含有可燃有机质的岩石，含油率超过3.5%，是一种重要的非常规油气资源，以资源丰富和开发利用的可行性而被列为21世纪重要的接替能源，同样也是不可再生的化石能源。一般认为,油页岩是粉沙、淤泥和低等生物残体腐解的有机质沉积形成的。 Content (English): Oil shale is a kind of rock containing combustible organic matter with an oil content of more than 3.5%. It is an important unconventional oil and gas resource. It is listed as an important 21st century with its rich resources and feasibility of development and utilization. Replacing energy is also a non-renewable fossil energy source. It is generally believed that oil shale is formed by the deposition of silt, silt and organic matter decomposed by lower biological residues.