[[:file:migration-of-petroleum_fig7-12.png|Figure 1]] is a hypothetical migration pathway map. The lower map shows the thickness of source rock, the top of the oil and gas windows, and the drainage areas for two traps labeled A and B of the same area shown in the upper map. The drainage areas for traps A and B were made using the migration pathway map.
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[[:file:migration-of-petroleum_fig7-12.png|Figure 1]] is a hypothetical [[migration pathway]] map. The lower map shows the thickness of source rock, the top of the oil and gas windows, and the drainage areas for two traps labeled A and B of the same area shown in the upper map. The drainage areas for traps A and B were made using the migration pathway map.
==Example of calculating volume==
==Example of calculating volume==
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[[Category:Critical elements of the petroleum system]]
[[Category:Critical elements of the petroleum system]]
[[Category:Migration of petroleum]] [[Category:Pages with bad references]]
[[Category:Migration of petroleum]] [[Category:Pages with bad references]]