Difference between revisions of "Subregional and local pressure compartments"

From AAPG Wiki
Jump to navigation Jump to search
(Initial import)
 
 
(13 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 +
{{Merge|Pressure compartments}}
 
{{publication  
 
{{publication  
 
  | image  = exploring-for-oil-and-gas-traps.png
 
  | image  = exploring-for-oil-and-gas-traps.png
Line 6: Line 7:
 
  | part    = Critical elements of the petroleum system
 
  | part    = Critical elements of the petroleum system
 
  | chapter = Formation fluid pressure and its application
 
  | chapter = Formation fluid pressure and its application
−
  | frompg  = 5-1
+
  | frompg  = 5-48
−
  | topg    = 5-64
+
  | topg    = 5-48
 
  | author  = Edward A. Beaumont, Forrest Fiedler
 
  | author  = Edward A. Beaumont, Forrest Fiedler
 
  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch05/ch05.htm
 
  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch05/ch05.htm
Line 14: Line 15:
 
  | isbn    = 0-89181-602-X
 
  | isbn    = 0-89181-602-X
 
}}
 
}}
−
Subregional or local (second- and third-order) pressure compartments can be found within normal pressure regimes or regional pressure compartments.
+
Subregional or local (second- and third-order) [[pressure compartments]] can be found within normal pressure regimes or [[regional pressure compartments]].
  
 
==Subregional pressure compartments==
 
==Subregional pressure compartments==
−
Below is an example of a subregional compartment contained within the regional pressure compartment of the Anadarko basin of Figure 5-25.
+
<gallery mode=packed widths=300px heights=300px>
 +
formation-fluid-pressure-and-its-application_fig5-26.png|{{figure number|1}}Example of a subregional compartment contained within the regional pressure compartment of the Anadarko basin. From Al-Shaieb et al.;<ref>Al-Shaieb, Z., J. O. Puckette, A. A. Abdalla, and P. B. Ely, 1995b, [http://archives.datapages.com/data/specpubs/memoir61/ch05/0069.htm Three levels of compartmentation within the overpressured interval of the Anadarko basin], in P. J. Ortoleva, ed., Basin Compartments and Seals: [http://store.aapg.org/detail.aspx?id=748 AAPG Memoir 61], p. 69–83.</ref> courtesy AAPG.
 +
formation-fluid-pressure-and-its-application_fig5-25.png|{{figure number|2}}Pressure–depth plot of a well through the Anadarko regional pressure compartment. Modified from Al-Shaieb et al.;<ref>Al-Shaieb, Z., J. O. Puckette, A. A. Abdalla, and P. B. Ely, 1995a, [http://archives.datapages.com/data/specpubs/memoir61/ch04/0055.htm Megacompartment complex in the Anadarko basin], in P. J. Ortoleva, ed., Basin Compartments and Seals: [http://store.aapg.org/detail.aspx?id=748 AAPG Memoir 61], p. 55–68.</ref> courtesy AAPG.
 +
</gallery>
  
−
[[file:formation-fluid-pressure-and-its-application_fig5-26.png|thumb|{{figure number|5-26}}.]]
+
[[:file:formation-fluid-pressure-and-its-application_fig5-26.png|Figure 1]] is an example of a subregional compartment contained within the regional pressure compartment of the [[Anadarko basin]] of [[:file:formation-fluid-pressure-and-its-application_fig5-25.png|Figure 2]].
  
 
==Local pressure compartments==
 
==Local pressure compartments==
−
The fluids in a porous bioherm completely encased in shale (as shown in the figure below) are virtually isolated from the nearby fluid systems outside the bioherm. The bioherm, then, is a pressure compartment that may or may not be abnormally pressured. Other geological features that may form local pressure compartments are fault blocks, sand lenses, and sand wedges developed in growth faults.
 
  
−
[[file:formation-fluid-pressure-and-its-application_fig5-27.png|thumb|{{figure number|5-27}}See text for explanation.]]
+
[[file:formation-fluid-pressure-and-its-application_fig5-27.png|400px|thumb|{{figure number|3}}Porous bioherm completely encased in shale.]]
 +
 
 +
The fluids in a [[Porosity#Carbonate pore systems|porous]] [[bioherm]] completely encased in shale (as shown in [[:file:formation-fluid-pressure-and-its-application_fig5-27.png|Figure 3]]) are virtually isolated from the nearby fluid systems outside the bioherm. The bioherm, then, is a pressure compartment that may or may not be abnormally pressured. Other geological features that may form local pressure compartments are fault blocks, sand lenses, and sand wedges developed in [[growth fault]]s.
  
 
==See also==
 
==See also==
Line 31: Line 36:
 
* [[Pressure compartment seals]]
 
* [[Pressure compartment seals]]
 
* [[Applying pressure compartment concepts to exploration]]
 
* [[Applying pressure compartment concepts to exploration]]
 +
 +
==References==
 +
{{reflist}}
  
 
==External links==
 
==External links==
Line 39: Line 47:
 
[[Category:Critical elements of the petroleum system]]  
 
[[Category:Critical elements of the petroleum system]]  
 
[[Category:Formation fluid pressure and its application]]
 
[[Category:Formation fluid pressure and its application]]
 +
[[Category:Treatise Handbook 3]]

Latest revision as of 17:58, 17 February 2022

 It has been suggested that this article be merged with [[::Pressure compartments|Pressure compartments]]. (Discuss)
Exploring for Oil and Gas Traps
Series Treatise in Petroleum Geology
Part Critical elements of the petroleum system
Chapter Formation fluid pressure and its application
Author Edward A. Beaumont, Forrest Fiedler
Link Web page
Store AAPG Store

Subregional or local (second- and third-order) pressure compartments can be found within normal pressure regimes or regional pressure compartments.

Subregional pressure compartments

  • Figure 1 Example of a subregional compartment contained within the regional pressure compartment of the Anadarko basin. From Al-Shaieb et al.;[1] courtesy AAPG.

  • Figure 2 Pressure–depth plot of a well through the Anadarko regional pressure compartment. Modified from Al-Shaieb et al.;[2] courtesy AAPG.

Figure 1 is an example of a subregional compartment contained within the regional pressure compartment of the Anadarko basin of Figure 2.

Local pressure compartments

Figure 3 Porous bioherm completely encased in shale.

The fluids in a porous bioherm completely encased in shale (as shown in Figure 3) are virtually isolated from the nearby fluid systems outside the bioherm. The bioherm, then, is a pressure compartment that may or may not be abnormally pressured. Other geological features that may form local pressure compartments are fault blocks, sand lenses, and sand wedges developed in growth faults.

See also

References

  1. ↑ Al-Shaieb, Z., J. O. Puckette, A. A. Abdalla, and P. B. Ely, 1995b, Three levels of compartmentation within the overpressured interval of the Anadarko basin, in P. J. Ortoleva, ed., Basin Compartments and Seals: AAPG Memoir 61, p. 69–83.
  2. ↑ Al-Shaieb, Z., J. O. Puckette, A. A. Abdalla, and P. B. Ely, 1995a, Megacompartment complex in the Anadarko basin, in P. J. Ortoleva, ed., Basin Compartments and Seals: AAPG Memoir 61, p. 55–68.

External links

find literature about
Subregional and local pressure compartments 		Datapages button.png GeoScienceWorld button.png OnePetro button.png Google button.png
Retrieved from "https://wiki.aapg.org/index.php?title=Subregional_and_local_pressure_compartments&oldid=27518"