Changes

===Calcium carbonate cementation and compaction===

===Calcium carbonate cementation and compaction===

Calcium carbonate cementation and compaction are diagenetic processes that are initiated soon after deposition and by which intergranular pore space is progressively reduced producing systematic changes in petrophysical properties (see [[Evaluating diagenetically complex reservoirs]] and [[Reservoir quality]]). Compaction is a physical/chemical process, while cementation requires fluid flow. Microporosity within grains or between Urne mud particles may be retained even though intergranular pore space is lost.

Calcium carbonate cementation and compaction are diagenetic processes that are initiated soon after deposition and by which intergranular pore space is progressively reduced producing systematic changes in petrophysical properties (see "[[Evaluating diagenetically complex reservoirs]]" and "[[Reservoir quality]]"). Compaction is a physical/chemical process, while cementation requires fluid flow. Microporosity within grains or between Urne mud particles may be retained even though intergranular pore space is lost.

===Dolomitization===

===Dolomitization===