Changes

==Vertically drained petroleum systems==

==Vertically drained petroleum systems==

[[file:petroleum-systems_fig3-23.png|thumb|{{figure number|3}}.]]

[[file:petroleum-systems_fig3-23.png|thumb|{{figure number|3}}Vertically drained system. From Demaison and Huizinga;<ref name=ch03r4 /> courtesy AAPG.]]

Demaison and Huizinga:<ref name=ch03r4>Demaison, G., Huizinga, B., J., 1994, [http://archives.datapages.com/data/specpubs/methodo2/data/a077/a077/0001/0050/0073.htm Genetic classification of petroleum systems using three factors: charge, migration, and entrapment], in Magoon, L., B., Dow, W., G., eds., The Petroleum System—From Source to Trap: [http://store.aapg.org/detail.aspx?id=1022 AAPG Memoir 60], p. 73–89.</ref> divide petroleum systems into vertically and laterally drained. An earlier section of this chapter describes the Mandal-Ekofisk(!) petroleum system, which is a vertically drained system. Vertically drained systems are generally found in rifts, deltas, wrenches, and overthrust provinces where migration is controlled by faults and fractures. Faults and fractures limit the size of the fetch area available to traps, so a number of small- and medium-sized accumulations abound.

Demaison and Huizinga:<ref name=ch03r4>Demaison, G., Huizinga, B., J., 1994, [http://archives.datapages.com/data/specpubs/methodo2/data/a077/a077/0001/0050/0073.htm Genetic classification of petroleum systems using three factors: charge, migration, and entrapment], in Magoon, L., B., Dow, W., G., eds., The Petroleum System—From Source to Trap: [http://store.aapg.org/detail.aspx?id=1022 AAPG Memoir 60], p. 73–89.</ref> divide petroleum systems into vertically and laterally drained. An earlier section of this chapter describes the Mandal-Ekofisk(!) petroleum system, which is a vertically drained system. Vertically drained systems are generally found in rifts, deltas, wrenches, and overthrust provinces where migration is controlled by faults and fractures. Faults and fractures limit the size of the fetch area available to traps, so a number of small- and medium-sized accumulations abound.