HYDROCARBON EXPLORATION IN THE SEQUENCE STRATIGRAPHY FRAME WORK
层序地层格架内的油气勘探

Sequence stratigraphy frame work controlled the foundation of reservoir and reserve distribution. There is an obvious difference in hydrocarbon distribution in different system tract and different sedimentary sets, but reserves in low system tract play the most important role. In the sequence stratigraphy frame work, the role and method for each step of exploration is also different from resource prediction based on the resource rock evaluation in the initial exploration stage to reservoir discovery based on the trap and reservoir body characterization in the exploration and to remaining reservoir find in the mature field. And in the frame work of baselevel, the distribution of reserve is also not homogeneous. The sand at the low location of the baselevel is wide spread and often with large amount of reserves, while sand at the high location is limited and with a few reserves. And also the high location is often become the potitial reserve increasing place for its limited sand distribution.