Potential of Global Offshore Petroleum Resource Exploration and Utilization Prospect

World offshore petroleum resource is abundant.With rapid economic development and onshore exploration becoming mature,the exploration and development for offshore petroleum resource has gradually become a hot spot.Two databases of IHS and USGS(United States Geology Survey) suggested that the recoverable oil and gas reserve would be 1321.5 billion barrels oil equivalent,about 35.8% of world total petroleum reserve.They are distributed in 12 regions around offshore.The undiscovered oil and gas resources in offshore are not uniformly distributed in the world.By statistics of undiscovered petroleum resources and exploration layers in the main global offshore basins,the first and second class potential exploration areas are 16 basins,10 of which was in the moderate exploration degree for undiscovered oil and gas resources,accounting for 42% of total resource.So it is good target for petroleum exploration.