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...s deposits of [[natural gas]], [[oil]], [[coal]], [[uranium]], [[sand]], [[gravel]], [[limestone]], [[humate]], [[gypsum]], road metal, building stone, water

* [[Gravel]]

* Very coarse, permeable, and shallow, such as loose gravel

...er is set in the open hole section of the wellbore. The difference is that gravel is sometimes placed behind the screen ([[:File:Well-completions_fig2.png|Fi ...n [[unconsolidated]] formation can be accomplished by performing an inside gravel pack. Finally, the perforated casing completion is quite adaptable to [[Typ

...sition. [[Grain size]]s are commonly fine size from silt and sand but also gravel size, and are considered a good to very good selection. ...tion so there are muddy contourites, silty contourites, sandy contourites, gravel-lag contourites and bioclastic contourites, the first three with their calc

...x-up construction in [[cross section]]. These deposits consist of abundant gravel-sand detritus on mostly fairly steep depositional slope. They are poorly so ...m the cross section, it’s concave upward. Alluvial fan deposits are mostly gravel-sized sediments and show down-fan decreased in [[grain size]] and bed thick

...er is set in the open hole section of the wellbore. The difference is that gravel is sometimes placed behind the screen ([[:file:well-completions_fig2.png|Fi ...of an unconsolidated formation can be accomplished by performing an inside gravel pack. Finally, the perforated casing completion is quite adaptable to multi

...(c) deltas carry large volumes of sediment, ranging in [[grain size]] from gravel to clay, and deposit these sediments both overbank and into the marine envi

...btained from several experiments on the vertical flow of water through the gravel

...these intervals had produced small volumes at low rates using conventional gravel packs. Laterals drilled through lower-shoreface deposits were disappointing

...equences are composed of stacked, upward-fining channel sands and sand and gravel bars. Lateral trends in these deposits are dominated by an overall tabular ...tems_fig3.png|Figure 3i]]). Internal facies vary from channelized sand and gravel bodies to sheet-like, thin, graded beds deposited by [[turbidity flow]]s in

...989>Gorman, I., C. Balnaves, J. Amaefule, D. Kersey, and D. Manning, 1989, Gravel packing in poorly lithified reservoirs: Laboratory systems approach to aid

...r68>Gorman, I., Balnaves, C., Amaefule, J., Kersey, D., Manning, D., 1989, Gravel packing in poorly lithified reservoirs: Laboratory systems approach to aid

...Merecure Unit A, although these modern systems principally carry boulders, gravel, and very coarse sandstone.

...e. Shorelines that face heavy wave action accumulate [[carbonate sand]] or gravel. [[Tidal current]]s are concentrated in channels between islands and produc

...d later due to [[bioturbation]] or mechanical infiltration at the top of a gravel may create a bell shape.

...ing; 5, ripple cross-bedding; 6,contorted bedding; 7, [[conglomerate]]; 8, gravel sandstone;; 9, sandstone; 10, silt; 11, muddy sandstone; 12, muddy silt; 13

...39, no. 12, p. 1501–1502.</ref> noted that there is commonly some sand or gravel underneath clay plugs that can allow communication. Similar observations ha

...ref name=Flmng>Flemming, B. W., 2000, A revised textural classification of gravel-free muddy sediments on the basis of ternary diagrams: Continental Shelf Re