Mineralogy and geochemical records of episodic reservoiring of hydrocarbon: example from the reservoirs in the northwest margin of Junggar basin;

Episodic petroleum accumulation was processes of the multi stage injections of mixed phase, non continuous fluids composed of hydrocarbons and water in sedimentary basins.

Exploration on internal pool of buried hill in lower Palaeozoic group of Jiyang Depression.;