Changes

===Dissolution and associated processes===

===Dissolution and associated processes===

''Dissolution'' is the diagenetic process by which [[Carbonates|carbonate]] and [[Evaporites|evaporite]] minerals are dissolved and removed, thus creating and modifying pore space in reservoir rocks (see [[Reservoir quality]]). The effect of this process on [[permeability]] depends upon the geometry and location of the resulting voids relative to the rock fabric. In some cases, dissolution is [[Fabric selective disslution|fabric selective]] and results in formation of isolated vugs. In other cases, dissolution enlarges [[fractures]] and [[Porosity#Carbonate pore systems|interparticle pores]] resulting in large, connected [[vug]]s. If the vugs are large enough, the roof may collapse, forming a floor [[breccia]] and fractured roof.

''Dissolution'' is the diagenetic process by which [[Carbonates|carbonate]] and [[Evaporites|evaporite]] minerals are dissolved and removed, thus creating and modifying pore space in reservoir rocks (see [[Reservoir quality]]). The effect of this process on [[permeability]] depends upon the geometry and location of the resulting voids relative to the rock fabric. In some cases, dissolution is [[Fabric selective disslution|fabric selective]] and results in formation of isolated [http://wiki.seg.org/wiki/Dictionary:Vug vugs]. In other cases, dissolution enlarges [[fractures]] and [[Porosity#Carbonate pore systems|interparticle pores]] resulting in large, connected [[vug]]s. If the vugs are large enough, the roof may collapse, forming a floor [[breccia]] and fractured roof.

==Carbonate rock fabric and petrophysical relationships==

==Carbonate rock fabric and petrophysical relationships==