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| | isbn = 0-89181-602-X | | | isbn = 0-89181-602-X |
| }} | | }} |
− | Linking the elements (source, reservoir, seal, and overburden) to the processes of petroleum geology (trap formation and hydrocarbon [[Petroleum generation|generation]]-migration-accumulation) is an effective exploration approach. Mapping and studying a [[petroleum system]] helps explorationists predict which traps will contain petroleum and which will not. It also helps them focus on that part of a province that will most likely contain accumulations. Below are some examples of how the petroleum system concept can be applied to petroleum exploration at local and regional levels. | + | Linking the elements (source, reservoir, seal, and overburden) to the processes of petroleum geology (trap formation and hydrocarbon [[Petroleum generation|generation]]-[[migration]]-[[accumulation]]) is an effective exploration approach. Mapping and studying a [[petroleum system]] helps explorationists predict which traps will contain petroleum and which will not. It also helps them focus on that part of a province that will most likely contain accumulations. Below are some examples of how the petroleum system concept can be applied to petroleum exploration at local and regional levels. |
| | | |
| ==Local example== | | ==Local example== |
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| Vertically drained systems have the following characteristics<ref name=ch03r4 /> | | Vertically drained systems have the following characteristics<ref name=ch03r4 /> |
| | | |
− | * Accumulations occur above or near to the pod of active source rock. | + | * [[Accumulation]]s occur above or near to the pod of active source rock. |
| * Lateral migration distances are short. | | * Lateral migration distances are short. |
| * Multiple, stacked accumulations usually contain the same genetic oil. | | * Multiple, stacked accumulations usually contain the same genetic oil. |
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| Laterally drained systems have the following characteristics: | | Laterally drained systems have the following characteristics: |
| | | |
− | * Oil accumulations generally occur in thermally immature strata located far from the pod of active source rock. | + | * Oil [[accumulation]]s generally occur in thermally immature strata located far from the pod of active source rock. |
| * Accumulations containing oil that migrated long distances on average account for 50% of the entrapped oil. | | * Accumulations containing oil that migrated long distances on average account for 50% of the entrapped oil. |
| * A single reservoir of the same age as the active source rock contains most of the entrapped oil and gas. | | * A single reservoir of the same age as the active source rock contains most of the entrapped oil and gas. |