Difference between revisions of "Pore system fundamentals"
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| part = Predicting the occurrence of oil and gas traps | | part = Predicting the occurrence of oil and gas traps | ||
| chapter = Predicting reservoir system quality and performance | | chapter = Predicting reservoir system quality and performance | ||
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| author = Dan J. Hartmann, Edward A. Beaumont | | author = Dan J. Hartmann, Edward A. Beaumont | ||
| link = http://archives.datapages.com/data/specpubs/beaumont/ch09/ch09.htm | | link = http://archives.datapages.com/data/specpubs/beaumont/ch09/ch09.htm | ||
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[[Porosity]] consists of relatively large voids, or pores, distributed among smaller passages called pore throats. A pore system is an aggregate of pores and pore throats that shares a similar morphology. These elements play a role in determining [[reservoir]] and [[seal]] petrophysics (the characteristic way that oil, gas, and water move through rocks). [[:file:predicting-reservoir-system-quality-and-performance_fig9-9.png|Figure 1]] shows typical 3-D pore system geometries found in intergranular, intercrystalline, vuggy, or fractured rocks. | [[Porosity]] consists of relatively large voids, or pores, distributed among smaller passages called pore throats. A pore system is an aggregate of pores and pore throats that shares a similar morphology. These elements play a role in determining [[reservoir]] and [[seal]] petrophysics (the characteristic way that oil, gas, and water move through rocks). [[:file:predicting-reservoir-system-quality-and-performance_fig9-9.png|Figure 1]] shows typical 3-D pore system geometries found in intergranular, intercrystalline, vuggy, or fractured rocks. | ||
| − | [[file:predicting-reservoir-system-quality-and-performance_fig9-9.png | + | [[file:predicting-reservoir-system-quality-and-performance_fig9-9.png|300px|thumb|{{figure number|1}}Typical 3-D pore system geometries found in intergranular, intercrystalline, vuggy, or fractured rocks. Copyright: Coalson et al.;<ref>Coalson, E. B., S. M. Goolsby, and M. H. Franklin, 1994, Subtle seals and fluid-flow barriers in carbonate rocks, in J.C. Dolson, M.L. Hendricks, and W.A. Wescott, eds., Unconformity Related Hydrocarbons in Sedimentary Sequences: RMAG Guidebook for Petroleum Exploration and Exploitation in Clastic and Carbonate Sediments, p. 45–58.</ref> courtesy RMAG.]] |
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==Critical elements of pore-system geometry== | ==Critical elements of pore-system geometry== | ||
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[[Category:Predicting the occurrence of oil and gas traps]] | [[Category:Predicting the occurrence of oil and gas traps]] | ||
[[Category:Predicting reservoir system quality and performance]] | [[Category:Predicting reservoir system quality and performance]] | ||
| + | [[Category:Treatise Handbook 3]] | ||
Latest revision as of 13:52, 4 April 2022
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It has been suggested that this article be merged with [[::Pore systems|Pore systems]]. (Discuss) |
Porosity consists of relatively large voids, or pores, distributed among smaller passages called pore throats. A pore system is an aggregate of pores and pore throats that shares a similar morphology. These elements play a role in determining reservoir and seal petrophysics (the characteristic way that oil, gas, and water move through rocks). Figure 1 shows typical 3-D pore system geometries found in intergranular, intercrystalline, vuggy, or fractured rocks.
Figure 1 Typical 3-D pore system geometries found in intergranular, intercrystalline, vuggy, or fractured rocks. Copyright: Coalson et al.;[1] courtesy RMAG.
Critical elements of pore-system geometry
The pores of a rock occur between grains or crystals, in fractures, or in vugs. A rock's storage capacity is controlled by the size and number of pores. A rock's permeability (flow capacity) is controlled by the size, shape, and number of the pore throats (connections) per pore. Four critical elements of the geometry of a rock's pore system are
- Pore system shapes
- Pore and pore throat sizes
- Pore connectivity
- Ratio of pore throats to pores
See also
References
- ↑ Coalson, E. B., S. M. Goolsby, and M. H. Franklin, 1994, Subtle seals and fluid-flow barriers in carbonate rocks, in J.C. Dolson, M.L. Hendricks, and W.A. Wescott, eds., Unconformity Related Hydrocarbons in Sedimentary Sequences: RMAG Guidebook for Petroleum Exploration and Exploitation in Clastic and Carbonate Sediments, p. 45–58.
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