The experience acquired while executing the petroleum system case study provides the measure of difficulty in mapping and determining the age of the essential elements and, more importantly, for the two processes—trap formation and generation-migration-accumulation of petroleum. Obviously, there is no risk or uncertainty related to the discovered accumulations in the petroleum system, but there are varying levels of difficulty in the reconstruction of events that caused these accumulations. This measure of difficulty can be incorporated into the risk chart. | The experience acquired while executing the petroleum system case study provides the measure of difficulty in mapping and determining the age of the essential elements and, more importantly, for the two processes—trap formation and generation-migration-accumulation of petroleum. Obviously, there is no risk or uncertainty related to the discovered accumulations in the petroleum system, but there are varying levels of difficulty in the reconstruction of events that caused these accumulations. This measure of difficulty can be incorporated into the risk chart. |