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→Example of modeling oil generation
The following figure shows a rock thickness vs. time plot for nine key wells south of eastern Louisiana within the area of the 6-4 Ma depocenter (Figure 4-13; see also <ref name=ch04r31>Fiduk, J., C., Behrens, E., W., 1993, A comparison of Plio-Pleistocene to Recent sediment accumulation rates in the East Breaks area, northwestern Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research conference, p. 41–55.</ref> Each major depositional interval is characterized by changes in depositional rates from oldest to youngest, in large part due to the geographic shifting of depositional centers. Dating within the wells is based on key biostratigraphic marker species for the deep-water environments of the GOM basin. Interval B is characterized by high rates of sedimentation associated with abundant gravity-flow sand deposition. It is followed by interval C, characterized by slow sedimentation and deposition of regionally effective top seal.
The following figure shows a rock thickness vs. time plot for nine key wells south of eastern Louisiana within the area of the 6-4 Ma depocenter (Figure 4-13; see also <ref name=ch04r31>Fiduk, J., C., Behrens, E., W., 1993, A comparison of Plio-Pleistocene to Recent sediment accumulation rates in the East Breaks area, northwestern Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research conference, p. 41–55.</ref> Each major depositional interval is characterized by changes in depositional rates from oldest to youngest, in large part due to the geographic shifting of depositional centers. Dating within the wells is based on key biostratigraphic marker species for the deep-water environments of the GOM basin. Interval B is characterized by high rates of sedimentation associated with abundant gravity-flow sand deposition. It is followed by interval C, characterized by slow sedimentation and deposition of regionally effective top seal.
==Example of [[modeling]] oil generation==
==Example of modeling oil generation==
The figure on the following page shows the rock accumulation rates for the Green Canyon 166 No. 1 well as a histogram (lower graph) and as a set of burial history curves (upper graph). Using temperature data from exploration wells, Piggott and Pulham.<ref name=ch04r75>Piggott, N., Pulham, A., 1993, Sedimentation rate as the control on hydrocarbon sourcing, generation, and [[migration]] in the deepwater Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research conference, p. 179–191.</ref> calculated temperature thresholds for the accumulated stratigraphic section. Burial of potential marine [[source rock]] above a temperature of approximately [[temperature::100°C]] could initiate generation of oil.
The figure on the following page shows the rock accumulation rates for the Green Canyon 166 No. 1 well as a histogram (lower graph) and as a set of burial history curves (upper graph). Using temperature data from exploration wells, Piggott and Pulham.<ref name=ch04r75>Piggott, N., Pulham, A., 1993, Sedimentation rate as the control on hydrocarbon sourcing, generation, and [[migration]] in the deepwater Gulf of Mexico: Proceedings, Gulf Coast Section SEPM 14th Annual Research conference, p. 179–191.</ref> calculated temperature thresholds for the accumulated stratigraphic section. Burial of potential marine [[source rock]] above a temperature of approximately [[temperature::100°C]] could initiate generation of oil.