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→Carbonate reservoir models
===Upward-shoaling cementation and compaction reservoir model===
===Upward-shoaling cementation and compaction reservoir model===
[[file:carbonate-reservoir-models-facies-diagenesis-and-flow-characterization_fig3.png|thumb|left|{{figure number|3}}Schematic diagrams of the upward-shoaling cementation and compaction reservoir model and the subtidat-supratidal dolomitlzation and sulfate emplacement reservoir model.]]
[[file:carbonate-reservoir-models-facies-diagenesis-and-flow-characterization_fig3.png|thumb|{{figure number|3}}Schematic diagrams of the upward-shoaling cementation and compaction reservoir model and the subtidat-supratidal dolomitlzation and sulfate emplacement reservoir model.]]
The upward-shoaling model is based on a depositional model of sediment aggrading to sea level. As the water shallows, the energy conditions increase, resulting in a vertically stacked sequence from mudstones and wackestones at the bottom to packestones and grainstones at the top ([[:file:carbonate-reservoir-models-facies-diagenesis-and-flow-characterization_fig3.png|Figure 3]]).
The upward-shoaling model is based on a depositional model of sediment aggrading to sea level. As the water shallows, the energy conditions increase, resulting in a vertically stacked sequence from mudstones and wackestones at the bottom to packestones and grainstones at the top ([[:file:carbonate-reservoir-models-facies-diagenesis-and-flow-characterization_fig3.png|Figure 3]]).
The subtidal-supratidal sequence is commonly dolomitized and contains anhydrite and gypsum. In the subtidal interval, dolomitized grainstones retain their intergranular pore space, except where cemented by anhydrite, and form permeable units. Dolomitization of the subtidal mud-supported sediments converts the tight, mud-supported limestones to permeable units because of the larger dolomite crystals and intercrystalline pore space. This produces two types of flow units in the subtidal interval: a dolomud-supported flow unit and a dolograin-supported flow unit. Each will have a unique porosity-permeability transform.
The subtidal-supratidal sequence is commonly dolomitized and contains anhydrite and gypsum. In the subtidal interval, dolomitized grainstones retain their intergranular pore space, except where cemented by anhydrite, and form permeable units. Dolomitization of the subtidal mud-supported sediments converts the tight, mud-supported limestones to permeable units because of the larger dolomite crystals and intercrystalline pore space. This produces two types of flow units in the subtidal interval: a dolomud-supported flow unit and a dolograin-supported flow unit. Each will have a unique porosity-permeability transform.
===Karst-collapse reservoir model===
===Karst-collapse reservoir model===