Characteristics of Oil Shale Quality and Prospects for Comprehensive Development and Utilization in the Dalianhe Coal Mining Area, Northeastern China

Oil shale is an important unconventional oil and gas resource, but it poorly utilized in the Dalianhe coal mining area, northeastern China. Systematic sampling test analysis were used to evaluate characteristics of quality. The research shows that between middle lower seams coal-bearing member a rich ore with high content, medium calorific value, ash volatile low moisture, ultralow sulfur content. has good quality suitable for low-temperature carbonization refining or low-calorific fuel. content silicon–aluminum-rich, calcium–magnesium, iron-poor, melting point. poor However, there dense section organic matter above upper seam. It recommended implement combined mineshaft reasonably recover seam improve resource utilization rate.