The elements of a petroleum system

This video is based on the elements of a petroleum system. What makes up a complete petroleum system. This is an important video because if one of the elements or processes is missing, we seize to have an active petroleum system. For example we can be having a rock with sufficient porosity and permeability but if we there is no source rock to supply it with hydrocarbons, that reservoir rock is worthless even for any oil company to invest money exploring for oil there and a reservoir rock is worthless without a trap to hold the oil. A good timing for the formation a trap to prevent further migration of oil is important for a complete petroleum system.