Changes

  | part    = Traps, trap types, and the petroleum system

  | part    = Traps, trap types, and the petroleum system

  | chapter = Classification of exploration traps

  | chapter = Classification of exploration traps

  | frompg  = 2-1

  | frompg  = 2-10

  | topg    = 2-42

  | topg    = 2-10

  | author  = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster

  | author  = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster

  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm

  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

}}

}}

The proposed classification scheme divides traps into three main groups or systems, based on the controlling geologic element that created the trap:

The proposed classification scheme divides [[trap]]s into three main groups or systems, based on the controlling geologic element that created the trap:

* [[Structural trap system|Structural]]

* [[Structural trap system|Structural]]

{| class = "wikitable"

{| class = "wikitable"

|-

|-

! Trap type

! Trap type || Trapping element is …

! Trapping element is …

|-

|-

| Structural

| Structural || [[Postdepositional|Post]]- or [[Syndepositional structure|syndepositional]] [[deformation]] or displacement of [[reservoir]] and/or [[seal]]ing units

| Post- or syndepositional deformation or displacement of reservoir and/or sealing units

|-

|-

| Stratigraphic

| Stratigraphic || [[Depositional trap regime|Depositional]], [[Erosional trap regime|erosional]], or [[Diagenetic trap regime|diagenetic]] configuration of reservoir and/or sealing units

| Depositional, erosional, or diagenetic configuration of reservoir and/or sealing units

|-

|-

| Fluidic

| Fluidic || Physical and/or chemical property or condition of reservoir fluids (see also [[Petroleum reservoir fluid properties]])

| Physical and/or chemical property or condition of reservoir fluids

|}

|}

==Discussion==

==Discussion==

Structural and [[stratigraphic trap]]s are well established in geological literature. The fluidic system is new; often, traps of this nature are referred to as “miscellaneous” or “other” or “unconventional” but seem to fit nicely into a distinct system of their own.

[[Structural trap system|Structural]] and [[stratigraphic trap]]s are well established in geological literature. The [[Fluidic trap system|fluidic system]] is new; often, traps of this nature are referred to as “miscellaneous” or “other” or “unconventional” but seem to fit nicely into a distinct system of their own.

==Classifying combinations==

==Classifying combinations==

One of the more difficult tasks in categorizing an oil or gas accumulation into a specific trap type is determining the dominant element that creates the trap boundaries since often more than one element is involved, giving rise to the ''combination trap''. We recognize this problem but hope that, by determining the primary, secondary, and, in some cases, tertiary trapping elements, explorationists can give combination traps useful labels. The label would combine classification labels such as structural/fluidic trap, stratigraphic/ structural trap, anticline/fault trap, and tilted fault-block/unconformity truncation trap, with the primary element listed first.

One of the more difficult tasks in categorizing an oil or gas [[accumulation]] into a specific trap type is determining the dominant element that creates the trap boundaries since often more than one element is involved, giving rise to the ''[[combination trap]]''. We recognize this problem but hope that, by determining the primary, secondary, and, in some cases, tertiary trapping elements, explorationists can give combination traps useful labels. The label would combine classification labels such as [[Structural trap system|structural]]/[[Fluidic trap system|fluidic]] trap, [[Stratigraphic trap|stratigraphic]]/ structural trap, [[Fold trap regime|anticline]]/[[Fault trap regime|fault]] trap, and tilted fault-block/[[Erosional trap regime|unconformity truncation]] trap, with the primary element listed first.

==See also==

==See also==

[[Category:Traps, trap types, and the petroleum system]]  

[[Category:Traps, trap types, and the petroleum system]]  

[[Category:Classification of exploration traps]]

[[Category:Classification of exploration traps]]