Changes

Several technical papers give cross plots of fluvial sand-body widths versus the maximum bankful depth of rivers (e.g., Bridge and Mackey<ref name=Bridgeandmackey_1993>Bridge, J. S., and S. D. Mackey, 1993, A theoretical study of fluvial sandstone body dimensions, in S. S. Flint and I. D. Bryant, eds., Geological modeling of hydrocarbon reservoirs: International Association of Sedimentologists, Special Publication 15, p. 213–236.</ref>) These plots have been used to model thickness-to-width ratios for 3-D geological models.

Several technical papers give cross plots of fluvial sand-body widths versus the maximum bankful depth of rivers (e.g., Bridge and Mackey<ref name=Bridgeandmackey_1993>Bridge, J. S., and S. D. Mackey, 1993, A theoretical study of fluvial sandstone body dimensions, in S. S. Flint and I. D. Bryant, eds., Geological modeling of hydrocarbon reservoirs: International Association of Sedimentologists, Special Publication 15, p. 213–236.</ref>) These plots have been used to model thickness-to-width ratios for 3-D geological models.

Miall<ref name=Miall_2006>Miall, A. D., 2006, [http://archives.datapages.com/data/bulletns/2006/07jul/BLTN05065/BLTN05065.HTM Reconstructing the architecture and sequence stratigraphy of the preserved fluvial record as a tool for reservoir development]: A reality check: AAPG Bulletin, v. 90, no. 7, p. 989–1002.</ref> criticized the use of empirical relationships for fluvial geometries in too prescriptive a manner. He suggests that they should only be used as approximate guidelines for developing alternative scenarios of fluvial reservoirs for modeling purposes. Shanley,<ref name=Shanley_2004 /> characterizing the Jonah field in Wyoming, preferred to estimate a range of possible dimensions for fluvial bodies instead of using a single unique value for the width-to-thickness ratio.

Miall<ref name=Miall_2006>Miall, A. D., 2006, [http://archives.datapages.com/data/bulletns/2006/07jul/BLTN05065/BLTN05065.HTM Reconstructing the architecture and sequence stratigraphy of the preserved fluvial record as a tool for reservoir development: A reality check]: AAPG Bulletin, v. 90, no. 7, p. 989–1002.</ref> criticized the use of empirical relationships for fluvial geometries in too prescriptive a manner. He suggests that they should only be used as approximate guidelines for developing alternative scenarios of fluvial reservoirs for modeling purposes. Shanley,<ref name=Shanley_2004 /> characterizing the Jonah field in Wyoming, preferred to estimate a range of possible dimensions for fluvial bodies instead of using a single unique value for the width-to-thickness ratio.

Werren et al.<ref name=Werrenetal_1990>Werren, E. G., R. D. Shew, E. R. Adams, and R. J. Stancliffe, 1990, Meander-belt reservoir geology, mid-dip Tuscaloosa, Little Creek field, Mississippi, in J. H. Barwis, J. G. McPherson, and R. J. Studlick, eds., Sandstone petroleum reservoirs: Berlin, Springer, p. 85–107.</ref> described a vertical profile for a point bar deposit in the Cretaceous reservoir of the Little Creek field in Mississippi. An erosional base is overlain by channel lags with intraformational shale rip-up clasts. Above this are large-scale cross-bedded sandstones, which pass upward to beds showing horizontal and small-scale ripple cross [[laminae]], clay drapes, micaceous and carbonaceous streaks, local mud balls, and [[intraclast]]s. The overall pattern is fining upward.

Werren et al.<ref name=Werrenetal_1990>Werren, E. G., R. D. Shew, E. R. Adams, and R. J. Stancliffe, 1990, Meander-belt reservoir geology, mid-dip Tuscaloosa, Little Creek field, Mississippi, in J. H. Barwis, J. G. McPherson, and R. J. Studlick, eds., Sandstone petroleum reservoirs: Berlin, Springer, p. 85–107.</ref> described a vertical profile for a point bar deposit in the Cretaceous reservoir of the Little Creek field in Mississippi. An erosional base is overlain by channel lags with intraformational shale rip-up clasts. Above this are large-scale cross-bedded sandstones, which pass upward to beds showing horizontal and small-scale ripple cross [[laminae]], clay drapes, micaceous and carbonaceous streaks, local mud balls, and [[intraclast]]s. The overall pattern is fining upward.