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| ==What is a petroleum system?== | | ==What is a petroleum system?== |
− | A petroleum system encompasses a pod of active source rock and all genetically related oil and gas accumulations. It includes all the geologic elements and processes that are essential if an oil and gas [[accumulation]] is to exist. | + | A petroleum system encompasses a pod of active [[source rock]] and all genetically related oil and gas accumulations. It includes all the geologic elements and processes that are essential if an oil and gas [[accumulation]] is to exist. |
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| '''Petroleum''' describes a compound that includes high concentrations of any of the following substances: | | '''Petroleum''' describes a compound that includes high concentrations of any of the following substances: |
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− | * Thermal and biological hydrocarbon gas found in conventional reservoirs as well as in [[gas hydrates]], tight reservoirs, fractured shale, and coal | + | * Thermal and biological hydrocarbon gas found in conventional reservoirs as well as in [[gas hydrates]], tight reservoirs, [[fracture]]d shale, and coal |
| * Condensates | | * Condensates |
| * Crude oils | | * Crude oils |
− | * Natural bitumen in reservoirs, generally in siliciclastic and carbonate rocks | + | * Natural bitumen in reservoirs, generally in [[Lithofacies and environmental analysis of clastic depositional systems|siliciclastic]] and [http://http://www.geologyrocks.co.uk/tutorials/introduction_to_carbonates carbonate] rocks |
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− | '''System''' describes the interdependent elements and processes that form the functional unit that creates hydrocarbon accumulations. | + | '''System''' describes the interdependent elements and processes that form the functional unit that creates hydrocarbon [[accumulation]]s. |
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| ==Elements and processes== | | ==Elements and processes== |