Reservoir formation and resource potential of biogenic-low maturity gases in China;

The proved reserves of non-high temperature-originated natural gas (biogenic gas-low maturity gas)in Tuha basin is already near 100×109 m3, but we didn’t sees the reported about appraises to the effective method of generation quantity and resource quantum yet, this has affected the decision-making to its exploration potential and the favorable target.

Chemical kinetic method of evaluating low-mature gas and its application in Tuha Basin

According to recent researches,the thermal evolution level of low-mature gas should be 0.

Immature oil-gas resources are one of the important resources in China, they are enriched in the continental sedimentary basins, and the Tertiary basins in the east in particular.

The low maturation coal sampled in Shenshan Coal Mine, as the immature sample of the Benxi formation in Carboniferous, Ordos basin, has been pyrolyzed under three different conditions in semi-open system to identify the major gas source rock of the natural gas in upper Ordovician weathered crust.