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Traps charged during structural growth are not destroyed by spillage as long as the trapping geometry is maintained during deformation because petroleum migrates with the structural closure much faster than the rate of structural growth.<ref name=ch11r15>Hubbert, M., K., 1953, [http://archives.datapages.com/data/bulletns/1953-56/data/pg/0037/0008/1950/1954.htm Entrapment of petroleum under hydrodynamic conditions]: AAPG Bulletin, vol. 37, p. 1954–2026.</ref> Conversely, if structural closure is destroyed during deformation, spillage occurs rapidly.
Traps charged during structural growth are not destroyed by spillage as long as the trapping geometry is maintained during deformation because petroleum migrates with the structural closure much faster than the rate of structural growth.<ref name=ch11r15>Hubbert, M., K., 1953, [http://archives.datapages.com/data/bulletns/1953-56/data/pg/0037/0008/1950/1954.htm Entrapment of petroleum under hydrodynamic conditions]: AAPG Bulletin, vol. 37, p. 1954–2026.</ref> Conversely, if structural closure is destroyed during deformation, spillage occurs rapidly.
Paleofluid contacts may be tilted where spillage results from structural tilting. For example, Prudhoe Bay field, charged during the Late Cretaceous and tilted during the late Eocene<ref name=ch11r1>Atkinson, C., McGowen, J., Block, S., Lundell, L., Trumbly, P., 1990, Braidplain and deltaic reservoirs, Prudhoe Bay field, Alaska, in Barwis, J., McPherson, J., Studlick, J., eds., Sandstone Petroleum Reservoirs: New York, Springer-Verlag, p. 7–30.</ref> resulted in a tilted paleo oil-water contact.
Paleofluid contacts may be tilted where spillage results from structural tilting. For example, Prudhoe Bay field, charged during the Late Cretaceous and tilted during the late Eocene<ref name=ch11r1>Atkinson, C., McGowen, J., Block, S., Lundell, L., Trumbly, P., 1990, Braidplain and deltaic reservoirs, Prudhoe Bay field, Alaska, in Barwis, J., McPherson, J., Studlick, J., eds., Sandstone Petroleum Reservoirs: New York, Springer-Verlag, p. 7–30.</ref> resulted in a tilted paleo [http://www.glossary.oilfield.slb.com/en/Terms.aspx?LookIn=term%20name&filter=oil-water%20contact oil-water contact].
==Change in a fold trap==
==Change in a fold trap==