Research on reservoir classification and evaluation based on alluvial fan configuration characterization
Following the research approach of"pattern guidance,core calibration,dynamic and static integration,and hierarchical analysis",a comprehensive application of rich core,logging,dynamic monitoring and other data has been conducted to study sedimentary microfacies,configuration characterization,and reservoir fine evaluation.Innovative application of the 7-level system sedimentation model of alluvial fans has been carried out,analyzing the spatial stacking style of dominant configuration units in arid alluvial fans,and establishing five single well facies models with dual sources through differentiation.On this basis,effective reservoir identification of block shaped sandstone and gravel rock masses was carried out,and the intersection graph clustering analysis method was applied to select 14 sensitive evaluation parameters for reservoir classification and evaluation,characterizing the differences in reservoir quality and clarifying the spatial distribution characteristics of advantageous reservoirs.
Arid alluvial fan configurationreservoir identificationclassificationevaluation criteria