Changes

===Stage 2. Construction of a depositional model===

===Stage 2. Construction of a depositional model===

The first stage of reservoir description is the preparation of a depositional model that depicts the vertical and lateral variations in depositional environment as reflected in lithologies, textural properties, fossil content, and sedimentary structures (see “Lithofacies and Environmental Analysis of Clastic Depositional Systems” and “Carbonate Reservoir Models: Facies, Diagenesis, and How Characterization”). This is necessary to assess the degree of heterogeneity attributable to depositional factors and the relative importance of depositional controls on major diagenetic alterations.

The first stage of reservoir description is the preparation of a depositional model that depicts the vertical and lateral variations in depositional environment as reflected in lithologies, textural properties, fossil content, and sedimentary structures (see [[Lithofacies and environmental analysis of clastic depositional systems]] and [[Carbonate reservoir models: facies, diagenesis, and how characterization]]). This is necessary to assess the degree of heterogeneity attributable to depositional factors and the relative importance of depositional controls on major diagenetic alterations.

===Stage 3. Construction of a diagenetic model===

===Stage 3. Construction of a diagenetic model===