| 1. | Often the porosity or effective porosity is used as an upper bound to the specific yield.
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| 2. | The identification of clay types is also useful for calculating the effective porosity of reservoir rock.
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| 3. | Log derivation of effective porosity includes CBW as part of the volume of shale ( V sh ).
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| 4. | ;Effective porosity \ phi _ { e1 } : The sum of all the interconnected pore space.
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| 5. | In the vast majority of cases, this core analysis and Petroleum Engineering definition of effective porosity equates to total porosity.
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| 6. | A dramatic example of a core effective porosity vs log effective porosity discrepancy comes from some Greensand reservoirs in Western Australia.
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| 7. | A dramatic example of a core effective porosity vs log effective porosity discrepancy comes from some Greensand reservoirs in Western Australia.
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| 8. | However, glauconitic microporosity is measured as part of the effective porosity in core plugs, even if they are humidity dried.
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| 9. | Log effective porosities calculated at 25 % in some Greensand reservoirs have yielded core analysis effective porosities of 35 % at equivalent depths.
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| 10. | Log effective porosities calculated at 25 % in some Greensand reservoirs have yielded core analysis effective porosities of 35 % at equivalent depths.
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