Abstract

Gas hydrates from the continental margin settings are mostly confined to continental slopes and it is an established fact that their dissociation might trigger submarine slope failures. The present study is carried out to investigate such a scenario in the Krishna Godavari basin where there are proven gas hydrate deposits. We interpret a fault that is generated below the bottom simulating reflector as a result of free gas overpressure in the shale deposits. Gas column height calculated for the KG basin is 51 m and shows that the gas zone is critically over pressured and any further increase in the gas column can potentially trigger slope failure.