Morphodynamic modelling of wave reworking of an alluvial delta and application of results in the standard reservoir modelling workflow - From Depositional Systems to Sedimentary Successions on the Norwegian Continental Margin - page 178

2 km

N/G

1

0

Fig. 7. Static reservoir model of the simulated Base case scenario indicating the net-to-gross ratio (N/G) at the palaeo delta
top as well as the location of five synthetic wells (D3D01 - D3D05).

2 k m

Initial Base case

Q low Q high

0 N/G 1

Fig. 8. Fence diagrams of all four scenarios (Initial, Base case, Q low and Q high ) showing stratal heterogeneity in net-to-gross
ratio (N/G) and well locations (see Fig. 7 for well labels).

lower part of the delta succession is preserved and
capped with a thin shoreface lag deposit. Well
D3D03 for the initial scenario shows a distal delta
progradational succession, similar to well D3D01.
This succession is eroded by waves in the Base
case scenario. The increase in sand input by the
distributary channel for the Q low and Q high scenarios
leads to well-sorted deposits of sand that has been

transported by wave-induced longshore currents
(Fig. 4C and F).
In contrast, well D3D04 displays a vertical succes-
sion near the delta apex which is dominated by
channelised flow. Channel migration during delta
progradation has resulted in a thick succession of
well-sorted sand. Due to its inland location, it is
unaffected by wave reworking. Furthermore, the