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| ==Procedure for reservoir system analysis== | | ==Procedure for reservoir system analysis== |
− | Below is a suggested procedure for reservoir system analysis. | + | Below is a suggested procedure for reservoir system analysis: |
| | | |
− | {| class = "wikitable"
| + | # Select a key well(s) for detailed petrophysical analysis (see [[Petrophysical analysis of lithofacies]]). |
− | |-
| + | # Subdivide the reservoir in the key well(s) into flow units (see [[Flow units for reservoir characterization]]). |
− | ! Step
| + | # Determine pore type for each flow unit in the key well using [[core description]]s, [[Thin section analysis|thin section]] and [[Scanning electron microscopy (SEM)|scanning electron microscopy]] analysis, [[porosity]]/[[permeability]]–[[Characterizing_rock_quality#What_is_r35.3F|r<sub>35</sub>]] analysis, [[Water saturation]] –depth plot, [[Buckles plot]], etc. |
− | ! Action
| + | # Construct stratigraphic [[strike]] and [[dip]] [[cross section]]s that include the key well. Use a region/fieldwide time marker at the top of the reservoir as the datum. |
− | |-
| + | # Subdivide the reservoir interval of each well into flow units. |
− | | 1
| + | # Correlate [[Flow units for reservoir characterization|flow units]] between wells and subdivide the reservoir into containers by determining which flow units interact during drainage. |
− | | Select a key well(s) for detailed petrophysical analysis (see [[Petrophysical analysis of lithofacies]]).
| + | # Determine hydrocarbon volume by computing the volume of pay by flow unit for each container. |
− | |-
| + | # Predict performance in terms of recovery amount and time by incorporating the above analysis with expected fluid properties and drive mechanism (see [[Drive mechanisms and recovery]]). Predictions should compare well with performance of analog reservoir systems. |
− | | 2
| |
− | | Subdivide the reservoir in the key well(s) into flow units (see [[Flow units for reservoir characterization]]).
| |
− | |-
| |
− | | 3
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− | | Determine pore type for each flow unit in the key well using [[core description]]s, [[Thin section analysis|thin section]] and [[Scanning electron microscopy (SEM)|scanning electron microscopy]] analysis, [[porosity]]/[[permeability]]–[[Characterizing_rock_quality#What_is_r35.3F|r<sub>35</sub>]] analysis, [[Water saturation]] –depth plot, [[Buckles plot]], etc.
| |
− | |-
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− | | 4
| |
− | | Construct stratigraphic [[strike]] and [[dip]] [[cross section]]s that include the key well. Use a region/fieldwide time marker at the top of the reservoir as the datum.
| |
− | |-
| |
− | | 5
| |
− | | Subdivide the reservoir interval of each well into flow units.
| |
− | |-
| |
− | | 6
| |
− | | Correlate [[Flow units for reservoir characterization|flow units]] between wells and subdivide the reservoir into containers by determining which flow units interact during drainage.
| |
− | |-
| |
− | | 7
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− | | Determine hydrocarbon volume by computing the volume of pay by flow unit for each container.
| |
− | |-
| |
− | | 8
| |
− | | Predict performance in terms of recovery amount and time by incorporating the above analysis with expected fluid properties and drive mechanism (see [[Drive mechanisms and recovery]]). Predictions should compare well with performance of analog reservoir systems.
| |
− | |}
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| ==Selecting a key well== | | ==Selecting a key well== |