SHALE GAS ENRICHMENT, RESERVOIR FORMATION AND CLASSIFICATION METHOD

摘要

A shale gas enrichment and accumulation classification method includes the following steps: S1, analyzing a shale gas enrichment and accumulation system to form shale gas enrichment and accumulation modes of different degrees; S2, dividing the shale gas enrichment and accumulation modes into a tectonic main control hydrocarbon generation source rock type shale gas enrichment and accumulation mode, a tectonic main control gas accumulation reservoir-type shale gas enrichment and accumulation mode and a tectonic main control protective stratum type enrichment and accumulation mode according to the differences of the degrees of structure evolution over shale gas hydrocarbon generation source rock, a gas accumulation reservoir and a protective stratum; and S3, dividing the tectonic main control hydrocarbon generation source rock type shale gas enrichment and accumulation mode into an autochthonous continuous biogenic shale gas enrichment and accumulation mode and an autochthonous thermogenic shale gas enrichment and accumulation mode.