Application of High-resolution Sequence Stratigraphy of Fluvial Facies in Development of Oilfield

Fluvial sandbody is one of the most important hydrocarbon reservoirs in China.Using of high-resolution sequence stratigraphy in fluvial facies in development of oilfield is very important to the Guidance of fluvail sandbod Subdivision and Correlation.There are complex factors,including fluvial facies autocyclicity sediment,the effect of sedimentary surface,channel pattern and sandbody architecture,and the orders of base-level cycles,which resulted in the difficulty to define subdivision and correlation.According to the theory and approach of high-resolution sequence stratigraphy,combining with fluvial facies model,lithofacies and facies sequence and association,and key surface correlation,reservoir fluid correlation and channel erosion and fill,fluvial reservoir subdivision and comparison have been carried out.Provided a clue and methods on the fluvial facies subdivision and correlation in development of oilfield of intermediary and later stage,in order to be helpful to product and develop of oilfield.In Minghuazhen Formation Bohai Q Oilfield,It has achieved good results in the practical application.