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Types of diagenetic traps (view source)
Revision as of 19:25, 22 January 2014
, 19:25, 22 January 2014Initial import
{{publication
| image = exploring-for-oil-and-gas-traps.png
| width = 120px
| series = Treatise in Petroleum Geology
| title = Exploring for Oil and Gas Traps
| part = Predicting the occurrence of oil and gas traps
| chapter = Exploring for stratigraphic traps
| frompg = 21-1
| topg = 21-68
| author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks
| link = http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm
| pdf =
| store = http://store.aapg.org/detail.aspx?id=545
| isbn = 0-89181-602-X
}}
Diagenetic traps are created by pore throat modifications of primary facies. They can also be created by changes in fluid type within the pore system.
==Categories==
Diagenetic traps occur in two basic categories: early or near-surface traps and late-burial traps.
Early or near-surface diagenetic traps are created by the following:
* Reservoir destroyed by paleosols, meteoric cementation, karsting, cave development, and/or sediment infill
* Reservoir enhanced by paleo-groundwater movement and/or karsting
Late burial diagenetic traps are created by the following:
* Bottom seal generated below oil-water contacts by late cementation
* Primary [[porosity]] preserved due to selective cementation and/or early hydrocarbon emplacement
* Secondary porosity created by cement and/or matrix dissolution
The diagram below shows cross sections of diagenetic trap types.
[[file:exploring-for-stratigraphic-traps_fig21-40.png|thumb|{{figure number|21-40}}See text for explanation.]]
==See also==
* [[Diagenetic modifications of stratigraphic traps]]
* [[Criteria for recognizing diagenetic traps]]
* [[Using petrological information]]
==External links==
{{search}}
* [http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm Original content in Datapages]
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Exploring for stratigraphic traps]]
| image = exploring-for-oil-and-gas-traps.png
| width = 120px
| series = Treatise in Petroleum Geology
| title = Exploring for Oil and Gas Traps
| part = Predicting the occurrence of oil and gas traps
| chapter = Exploring for stratigraphic traps
| frompg = 21-1
| topg = 21-68
| author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks
| link = http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm
| pdf =
| store = http://store.aapg.org/detail.aspx?id=545
| isbn = 0-89181-602-X
}}
Diagenetic traps are created by pore throat modifications of primary facies. They can also be created by changes in fluid type within the pore system.
==Categories==
Diagenetic traps occur in two basic categories: early or near-surface traps and late-burial traps.
Early or near-surface diagenetic traps are created by the following:
* Reservoir destroyed by paleosols, meteoric cementation, karsting, cave development, and/or sediment infill
* Reservoir enhanced by paleo-groundwater movement and/or karsting
Late burial diagenetic traps are created by the following:
* Bottom seal generated below oil-water contacts by late cementation
* Primary [[porosity]] preserved due to selective cementation and/or early hydrocarbon emplacement
* Secondary porosity created by cement and/or matrix dissolution
The diagram below shows cross sections of diagenetic trap types.
[[file:exploring-for-stratigraphic-traps_fig21-40.png|thumb|{{figure number|21-40}}See text for explanation.]]
==See also==
* [[Diagenetic modifications of stratigraphic traps]]
* [[Criteria for recognizing diagenetic traps]]
* [[Using petrological information]]
==External links==
{{search}}
* [http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm Original content in Datapages]
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Exploring for stratigraphic traps]]