The grain size analysis for the shallow-water delta microfacies: An example from one well in the Bozhong 25-1 Southern Oil Field

The shallow-water delta is a special type of deltas.Examplified by one well Well A in the Bozhong 25-1 Southern Oil Field,the present paper deals with the grain size analysis and correlation for individual shallow-water delta microfacies.These grain size analyses show that the grain size probability cumulative curves and C-M patterns for the shallow-water deltas quite differ from those for the meandering streams and river-dominated deltas,suggesting the unique hydrodynamics of the shallow-water deltas.