Changes

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

}}

}}

Although the presence of a petroleum phase may retard [[diagenesis]] in an accumulation, sooner or later [[reservoir quality]] decreases with increasing age and burial.<ref name=ch11r5>Bloch, S., 1991, [http://archives.datapages.com/data/bulletns/1990-91/data/pg/0075/0007/0000/1145.htm Empirical prediction of porosity and permeability in sandstones]: AAPG Bulletin, vol. 75, p. 1145–1160.</ref>

Although the presence of a petroleum phase may retard [[diagenesis]] in an [[accumulation]], sooner or later [[reservoir quality]] decreases with increasing age and burial.<ref name=ch11r5>Bloch, S., 1991, [http://archives.datapages.com/data/bulletns/1990-91/data/pg/0075/0007/0000/1145.htm Empirical prediction of porosity and permeability in sandstones]: AAPG Bulletin, vol. 75, p. 1145–1160.</ref>

==The process==

==The process==