Changes

{{publication  

{{publication  

  | image  = exploring-for-oil-and-gas-traps.png

  | image  = exploring-for-oil-and-gas-traps.png

  | 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

  | frompg  = 9-1

  | frompg  = 9-18

  | topg    = 9-156

  | topg    = 9-17

  | 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

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

}}

}}

[[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|thumb|{{figure number|1}}. Copyright: Coalson et al., 1994; courtesy RMAG.]]

[[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.]]

==Critical elements of pore-system geometry==

==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

The pores of a rock occur between grains or crystals, in fractures, or in [http://www.merriam-webster.com/dictionary/vug 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 system shapes

==See also==

==See also==

* [[Classifying pore systems]]

* [[Pore systems]]

* [[Pore system shapes]]

* [[Pore system shapes]]

* [[Pore and pore throat sizes]]

* [[Pore and pore throat sizes]]

* [[Connectivity and pore throat size]]

* [[Pore throat size and connectivity]]

* [[Classifying pore systems]]

* [[Capillary pressure (Pc) curves: pore throat size determination]]

* [[Determining pore throat size from Pc curves]]

 

==External links==

==External links==

[[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]]