Most stratigraphic and combination traps require top, lateral, and bottom seals to retain a hydrocarbon accumulation. [[:file:exploring-for-stratigraphic-traps_fig21-1.png|Figure 1]] compares typical structural and stratigraphic traps and shows why bottom seals are more important to stratigraphic traps in determining accumulation size. | Most stratigraphic and combination traps require top, lateral, and bottom seals to retain a hydrocarbon accumulation. [[:file:exploring-for-stratigraphic-traps_fig21-1.png|Figure 1]] compares typical structural and stratigraphic traps and shows why bottom seals are more important to stratigraphic traps in determining accumulation size. |