具有广阔勘探前景的一种新型浅层天然气───油层、煤层厌氧菌解再生生物气

A NEW TYPE OF SHALLOW NATURAL GAS WITH BROAD EXPLORATION PROSPECT ────THEREGENERATED BIOGENIC GAS FROM OIL RESERVOIR AND COAL SEAMS BY THE DEGRADATON OF ANAERODIC BACTERIA

再生型生物成因天然气是一种分布相当广泛的浅层天然气，它是浅层的油层、煤层在还原条件下受厌氧细菌（主要是产甲烷菌）降解作用新生成的一种再生能源。它突破了只能在热不成熟的地层中勘探生物天然气的束缚，将其勘探领域扩展到目前处于浅埋的热成熟含油含煤盆地以及某些含盐含碱盆地。它是我国今后浅层天然气勘探的重要领域，并可能成为代国生物气的主要资源类型。

Tbe biogenous natural gas of regenerated type is a widespread shallow natural gas which is a regenerated energy sotirce by the degradation of the anaerobic bacteria(mainly-methanegenerated bacteria)from shallow oil reservoir and coal seams under a reduction condition. Such an understanding breaks through the conception that biogenic natural gas could only be discovered in shallow unmatured players, and expands the exploration field-into oil-bearing and coal-bearing basins and even some salt-bearing and alkali-bearing basins,which are attributed to shallow-buried and thermal mature type. So this kind of shallow natural gas would be a significaiit prospecting and can probably become a main re-source type of biogenic gas of our country in the future.