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  = 2-5

  | topg    = 2-42

  | topg    = 2-6

  | 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

==Capillary contrasts==

==Capillary contrasts==

Capillary contrasts are differences in the capillary properties of the pore-throat apertures of seal and reservoir rocks, generally caused by a difference in pore-throat aperture sizes. These capillarity contrasts commonly create the trap boundaries between reservoir and seal.

[[Capillary pressure|Capillary contrasts]] are differences in the capillary properties of the pore-throat apertures of [[seal]] and [[reservoir]] rocks, generally caused by a difference in [[Pore systems|pore-throat aperture sizes]]. These capillarity contrasts commonly create the trap boundaries between reservoir and seal.

==Trap closure==

==Trap closure==

Trap closure is a measure of the potential storage capacity or size of the trap defined by the trap boundaries. Vertical closure is a measure of the maximum potential hydrocarbon column of the trap. Areal closure is a measure of the maximum area of the potential hydrocarbon accumulation within the trap boundaries. Volumetric closure integrates vertical and areal closure with pay thickness, [[porosity]], and hydrocarbon saturation to provide the volume of the potential hydrocarbon accumulation within the trap boundaries.

Trap [http://www.glossary.oilfield.slb.com/en/Terms.aspx?LookIn=term%20name&filter=closure closure] is a measure of the potential storage capacity or size of the trap defined by the trap boundaries. Vertical closure is a measure of the maximum potential [[hydrocarbon column]] of the trap. Areal closure is a measure of the maximum area of the potential hydrocarbon accumulation within the trap boundaries. Volumetric closure integrates vertical and areal closure with pay thickness, [[porosity]], and [[Water saturation|hydrocarbon saturation]] to provide the volume of the potential hydrocarbon accumulation within the trap boundaries.

==Trap classification==

==Trap classification==

[[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]]