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Line 27:
Line 27: − A fault is also cross sealing if it juxtaposes sands with different hydrocarbon contacts and/or different free water levels, as illustrated in the following figure. Small differences in hydrocarbon contacts do not necessarily imply a cross-sealing fault because the capillary properties of the juxtaposed sands can create different hydrocarbon contacts even across a cross-leaking fault. Different free water levels do imply a cross-sealing fault. − + + +
→Different hydrocarbon contacts
==Different hydrocarbon contacts==
==Different hydrocarbon contacts==
[[file:evaluating-top-and-fault-seal_fig10-7.png|thumb|{{figure number|10-7}}See text for explanation.]]
[[file:evaluating-top-and-fault-seal_fig10-7.png|thumb|{{figure number|2}}A fault is cross sealing if it juxtaposes sands with different hydrocarbon contacts and/or different free water levels.]]
A fault is also cross sealing if it juxtaposes sands with different hydrocarbon contacts and/or different free water levels, as illustrated in [[:file:evaluating-top-and-fault-seal_fig10-7.png|Figure 2]]. Small differences in hydrocarbon contacts do not necessarily imply a cross-sealing fault because the capillary properties of the juxtaposed sands can create different hydrocarbon contacts even across a cross-leaking fault. Different free water levels do imply a cross-sealing fault.
==Different pressures==
==Different pressures==