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→Laboratory analysis
|+ {{table number|2}}Comparison of porosity determination methods
|+ {{table number|2}}Comparison of porosity determination methods
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! Method
! Method || Advantages
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| Resaturation porosity
| rowspan = 3 | Resaturation porosity || Accurate
| Accurate
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| Saturated samples available for further testing
| Saturated samples available for further testing
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| Saturation time is dependent on permeability
| Saturation time is dependent on permeability
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| Boyle's law porosity: grain volume determination
| rowspan = 6 | Boyle's law porosity: grain volume determination || Very accurate
| Very accurate
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| Not sensitive to rock mineralogy
| Not sensitive to rock mineralogy
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| Samples can be used for further testing
| Samples can be used for further testing
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| Grain density readily determined
| Grain density readily determined
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| Irregularly shaped, fractured, and/or vuggy samples easily measured
| Irregularly shaped, fractured, and/or vuggy samples easily measured
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| Rapid technique (after cleaning and drying)
| Rapid technique (after cleaning and drying)
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| Boyle's law porosity: pore volume determination
| rowspan = 5 | Boyle's law porosity: pore volume determination || Very accurate
| Very accurate
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| Not sensitive to rock mineralogy
| Not sensitive to rock mineralogy
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| Porosity can be determined at reservoir stress
| Porosity can be determined at reservoir stress
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| Permeability can be run on same apparatus to avoid stress hysteresis
| Permeability can be run on same apparatus to avoid stress hysteresis
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| Rapid technique (after cleaning and drying)
| Rapid technique (after cleaning and drying)
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| Summation of fluids porosity
| rowspan = 4 | Summation of fluids porosity
| Accurate for most rock types
| Accurate for most rock types
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| Porosity and saturation determined on sample splits
| Porosity and saturation determined on sample splits
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| Requires no cleaning or drying
| Requires no cleaning or drying
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| Rapid technique
| Rapid technique
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| Thin section porosity point count
| rowspan = 3 | Thin section porosity point count || Porosity can be determined on irregular, fractured, and/or vuggy samples
| Porosity can be determined on irregular, fractured, and/or vuggy samples
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| Pore types can be identified
| Pore types can be identified
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| Grain, cement, matrix, and pore relationships can be established
| Grain, cement, matrix, and pore relationships can be established
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| P.I.A. porosity
| rowspan = 3 | P.I.A. porosity || Porosity can be determined on irregular shapes
| Porosity can be determined on irregular shapes
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| Pore types can be identified
| Pore types can be identified
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| Precise determination of visible porosity
| Precise determination of visible porosity
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