划分储层流动单元的方法? flow unit modeling and fine-scale predicted permeability validation in atokan sandstones: norcan east field, kansas saibal bhattacharya, alan p. byrnes, w. lynn watney, and john h. doveton ab s tra ct characterizing the reservoir interval into flow units is an ef- fective way to subdivide the net-pay zone into layers for res- ervoir simulation. commonly used flow unit identification techniques require a reliable estimate of permeability in the net pay on a foot-by-foot basis. most of the wells do not have cores, and the literature is replete with different kinds of cor- relations, transforms, and prediction methods for profiling per- meability in pay. however, for robust flow unit determination, predicted permeability at noncored wells requires validation and, if necessary, refinement. this study outlines the use of a spreadsheet-based permeabil- ity validation technique to characterize flow units in wells from the norcan east field, clark county, kansas, that produce from atokan aged fine- to very fine-grained quartzarenite sandstones interpreted to have been deposited in brackish-water, tidally domi- nated restricted tidal-flat, tidal-channel, tidal-bar, and estuary bay environments within a small incised-valley-fill system. the methodology outlined enables the identification of fieldwide free-water level and validates and refines predicted permeabil- ity at 0.5-ft (0.15-m) intervals by iteratively reconciling differ- ences in water saturation calculated from wire-line log and a capillary-pressure formulation that models fine- to very fine- grained sandstone with diagenetic clay and silt or shale laminae. 推荐你看看!aapg bulletin, v. 92, no. 6 (june 2008), pp. 709 – 732查看更多
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