Difference between revisions of "Pore system fundamentals"

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==See also==
 
==See also==
* [[Classifying pore systems]]
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* [[Pore systems]]
 
* [[Pore system shapes]]
 
* [[Pore system shapes]]
 
* [[Pore and pore throat sizes]]
 
* [[Pore and pore throat sizes]]
 
* [[Connectivity and pore throat size]]
 
* [[Connectivity and pore throat size]]
* [[Classifying pore systems]]
 
 
* [[Determining pore throat size from Pc curves]]
 
* [[Determining pore throat size from Pc curves]]
  

Revision as of 14:47, 22 July 2014

Exploring for Oil and Gas Traps
Series Treatise in Petroleum Geology
Part Predicting the occurrence of oil and gas traps
Chapter Predicting reservoir system quality and performance
Author Dan J. Hartmann, Edward A. Beaumont
Link Web page
Store AAPG Store

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 . Copyright: Coalson et al., 1994; 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

External links

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