The lacustrine Dameigou organic-rich shale of the northern Qaidam Basin is a particularly promising play for recent unconventional oil and gas exploration in China. Deposition was associated with arid intervals during otherwise humid Middle Jurassic, but depositional mechanism organic matter enrichment processes are poorly understood. This study integrates high-resolution inorganic geochemical ...

Shale oil has become a global hotspot of unconventional exploration and development. In this study, the latest drill core experiment analyses Qingshankou Formation in northern Songliao Basin were used to evaluate its lithofacies classification, sedimentary environment, pore types, pore-throat structure characterization, shale potential. Lithofacies classification was determined according total ...

The Garber-Wellington aquifer is an important source of drinking water in central Oklahoma. The formations making up the aquifer, the Garber Sandstone and the underlying Wellington Formation, consist of amalgamated fluvial sandstones interbedded with mudstones, siltstones, and some conglomerates (Breit et al., 1990). Water from some of the wells contains naturally occurring arsenic levels that ...