Difference between revisions of "Structural styles: data and techniques for evaluation"

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  | part    = Predicting the occurrence of oil and gas traps
 
  | part    = Predicting the occurrence of oil and gas traps
 
  | chapter = Exploring for structural traps
 
  | chapter = Exploring for structural traps
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  | frompg  = 20-1
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  | frompg  = 20-61
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  | topg    = 20-70
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  | topg    = 20-61
 
  | author  = R.A. Nelson, T.L. Patton, S. Serra
 
  | author  = R.A. Nelson, T.L. Patton, S. Serra
 
  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch20/ch20.htm
 
  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch20/ch20.htm
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==What is a structural style?==
 
==What is a structural style?==
  
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Structural styles or structural families are associations of structures that often occur together due to a common origin. For example, major foreland thrust belts usually contain a mixture of listric reverse or decollement thrust faults, large asymmetric hangingwall folds, and late listric normal faults. These features are arranged to form an overall arcuate deformed belt. There is little or no involvement of mechanical basement in the deformation. Individual structures generally have good strike continuity and poor depth or dip continuity. Hence, in any newly discovered thrust belt, these same associations (thrust belt structural style) would be anticipated, modified somewhat by local geology. The concept of structural styles and their classification are given in Harding and Lowell<ref name=Harding_Lowell_1979>Harding, T. P., and J. D. Lowell, 1979, Structural styles, their plate-tectonic habitats and hydrocarbon traps in petroleum provinces: AAPG Bulletin, v. 63, p. 1016-1058.</ref> and Lowell.<ref name=ch20r215>Lowell, J., D., 1985, Structural Styles in Petroleum Exploration: Tulsa, OGCI, 460 p.</ref>
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Structural styles or structural families are associations of structures that often occur together due to a common origin. For example, major [[foreland thrust belt]]s usually contain a mixture of [[listric]], [[reverse]], or [[decollement]] [[thrust fault]]s, large asymmetric [[hanging wall]] folds, and late listric [[normal fault]]s. These features are arranged to form an overall arcuate deformed belt. There is little or no involvement of mechanical [[basement]] in the [[deformation]]. Individual structures generally have good [[strike]] continuity and poor depth or [[dip]] continuity. Hence, in any newly discovered thrust belt, these same associations (thrust belt structural style) would be anticipated, modified somewhat by local geology. The concept of structural styles and their classification are given in Harding and Lowell<ref name=Harding_Lowell_1979>Harding, T. P., and J. D. Lowell, 1979, [http://archives.datapages.com/data/bulletns/1977-79/data/pg/0063/0007/1000/1016.htm Structural styles, their plate-tectonic habitats and hydrocarbon traps in petroleum provinces]: AAPG Bulletin, v. 63, p. 1016-1058.</ref> and Lowell.<ref name=ch20r215>Lowell, J., D., 1985, Structural Styles in Petroleum Exploration: Tulsa, OGCI, 460 p.</ref>
  
 
==Choosing techniques==
 
==Choosing techniques==
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If and when a structural style(s) is ascribed to an area, certain of the structural techniques become more important to perform than others. The list below displays those techniques (keyed to the numbers in [[:file:Exploring-for-structural-traps fig20-4.png|Figure 2]] of [[Workflow to find a prospect]]) deemed important for each major structural style.
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[[file:Exploring-for-structural-traps fig20-4.png|thumb|500px|{{Figure number|1}}Summary of where different techniques and tools can be applied.]]
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If and when one or more structural styles are ascribed to an area, certain of the structural techniques become more important to perform than others. The list below displays those techniques (keyed to the numbers in [[:file:Exploring-for-structural-traps fig20-4.png|Figure 1]].
  
 
{| class = "wikitable"
 
{| class = "wikitable"
 
|-
 
|-
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! Style
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! Style || Very Important*
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! Very Important*
 
 
|-
 
|-
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| Thrust belts
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| [[Thrust belt]]s || 5, 8, 10, 12
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| 5, 8, 10, 12
 
 
|-
 
|-
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| Wrench systems
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| [http://www.glossary.oilfield.slb.com/en/Terms.aspx?LookIn=term%20name&filter=wrench%20fault Wrench systems] || 1, 3, 11
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| 1, 3, 11
 
 
|-
 
|-
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| Rifts and detached normal fault systems
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| [[Rift]]s and [[detached normal fault]] systems || 2, 8, 10, 12, 15
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| 2, 8, 10, 12, 15
 
 
|-
 
|-
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| Diapiric
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| [[Diapir]]ic || 2, 12
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| 2, 12
 
 
|-
 
|-
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| Foreland block folds
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| [[Foreland block fold]]s || 3, 6, 8
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| 3, 6, 8
 
 
|-
 
|-
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| Basement warps and sags
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| [[Basement]] warps and sags || 2, 6, 8, 11
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| 2, 6, 8, 11
 
 
|}
 
|}
  
 
==See also==
 
==See also==
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* [[Project planning: the one-minute structural play for managers]]
 
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* [[Data and techniques to study basins of varying maturity]]
 
 
* [[How different structural philosophies govern techniques]]
 
* [[How different structural philosophies govern techniques]]
  
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[[Category:Predicting the occurrence of oil and gas traps]]  
 
[[Category:Predicting the occurrence of oil and gas traps]]  
 
[[Category:Exploring for structural traps]]
 
[[Category:Exploring for structural traps]]
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[[Category:Treatise Handbook 3]]

Latest revision as of 20:13, 3 February 2022

Exploring for Oil and Gas Traps
Series Treatise in Petroleum Geology
Part Predicting the occurrence of oil and gas traps
Chapter Exploring for structural traps
Author R.A. Nelson, T.L. Patton, S. Serra
Link Web page
Store AAPG Store

What is a structural style?

Structural styles or structural families are associations of structures that often occur together due to a common origin. For example, major foreland thrust belts usually contain a mixture of listric, reverse, or decollement thrust faults, large asymmetric hanging wall folds, and late listric normal faults. These features are arranged to form an overall arcuate deformed belt. There is little or no involvement of mechanical basement in the deformation. Individual structures generally have good strike continuity and poor depth or dip continuity. Hence, in any newly discovered thrust belt, these same associations (thrust belt structural style) would be anticipated, modified somewhat by local geology. The concept of structural styles and their classification are given in Harding and Lowell[1] and Lowell.[2]

Choosing techniques

Figure 1 Summary of where different techniques and tools can be applied.

If and when one or more structural styles are ascribed to an area, certain of the structural techniques become more important to perform than others. The list below displays those techniques (keyed to the numbers in Figure 1.

Style Very Important*
Thrust belts 5, 8, 10, 12
Wrench systems 1, 3, 11
Rifts and detached normal fault systems 2, 8, 10, 12, 15
Diapiric 2, 12
Foreland block folds 3, 6, 8
Basement warps and sags 2, 6, 8, 11

See also

References

  1. ↑ Harding, T. P., and J. D. Lowell, 1979, Structural styles, their plate-tectonic habitats and hydrocarbon traps in petroleum provinces: AAPG Bulletin, v. 63, p. 1016-1058.
  2. ↑ Lowell, J., D., 1985, Structural Styles in Petroleum Exploration: Tulsa, OGCI, 460 p.

External links

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