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Stratigraphic trap seals (view source)
Revision as of 15:35, 11 February 2014
, 15:35, 11 February 2014→Seal quality and dip rate
==Seal quality and dip rate==
==Seal quality and dip rate==
Large stratigraphic traps are most common in basins with gentle structural dip, where small hydrocarbon columns can be areally extensive. As structural dip steepens, the need for high-quality seals increases, raising the probability of trap failure (e.g., .<ref name=ch21r19>Gries, R., Dolson, J., C., Reynolds, R., G., H., 1993, Structural and stratigraphic evolution and hydrocarbon distribution, Rocky Mountain Foreland, in Macqueen, R., W., Leckie, D., A., eds., Foreland Basins and Fold Belts: AAPG Memoir 55, p. 395–425.</ref> That is why large stratigraphic traps are most common in basins with gentle structural dip, where small hydrocarbon columns can be areally extensive. [[:file:exploring-for-stratigraphic-traps_fig21-2.png|Figure 2]] illustrates in map view how dip rate affects stratigraphic trap size.
Large stratigraphic traps are most common in basins with gentle structural dip, where small hydrocarbon columns can be areally extensive. As structural dip steepens, the need for high-quality seals increases, raising the probability of trap failure.<ref name=ch21r19>Gries, R., Dolson, J., C., Reynolds, R., G., H., 1993, [http://archives.datapages.com/data/specpubs/basinar3/data/a136/a136/0001/0350/0395.htm Structural and stratigraphic evolution and hydrocarbon distribution, Rocky Mountain Foreland], in Macqueen, R., W., Leckie, D., A., eds., Foreland Basins and Fold Belts: [http://store.aapg.org/detail.aspx?id=143 AAPG Memoir 55], p. 395–425.</ref> That is why large stratigraphic traps are most common in basins with gentle structural dip, where small hydrocarbon columns can be areally extensive. [[:file:exploring-for-stratigraphic-traps_fig21-2.png|Figure 2]] illustrates in map view how dip rate affects stratigraphic trap size.
[[file:exploring-for-stratigraphic-traps_fig21-3.png|left|thumb|{{figure number|3}}See text for explanation.]]
[[file:exploring-for-stratigraphic-traps_fig21-3.png|left|thumb|{{figure number|3}}See text for explanation.]]