Line 16: |
Line 16: |
| Seven critical elements are necessary for subsurface [[hydrocarbon]] [[accumulation]]s to occur: | | Seven critical elements are necessary for subsurface [[hydrocarbon]] [[accumulation]]s to occur: |
| | | |
− | * Reservoir rock | + | * [[Reservoir]] rock |
− | * Source rock | + | * [[Source rock]] |
− | * Seal | + | * [[Seal]] |
| * Thermal history | | * Thermal history |
− | * Migration and trapping of hydrocarbons | + | * [[Migration]] and [[trap]]ping of [[hydrocarbon]]s |
| * Geologic history of the basin | | * Geologic history of the basin |
| * Structural history and style | | * Structural history and style |
Line 30: |
Line 30: |
| | | |
| ==Critical element checklist== | | ==Critical element checklist== |
− | The following checklist summarizes key [[attributes]] of the seven critical elements. The working explorer should have a general understanding of these attributes in the basin studied. | + | The following checklist summarizes key attributes of the seven critical elements. The working explorer should have a general understanding of these attributes in the basin studied. |
| | | |
| ===Reservoir rock=== | | ===Reservoir rock=== |
Line 39: |
Line 39: |
| * Lateral continuity (faulted?) | | * Lateral continuity (faulted?) |
| * Mappability | | * Mappability |
− | * Depth of burial: structural relief of reservoir top | + | * Depth of burial |
| + | * Structural relief of reservoir top |
| * Outcrop occurrences | | * Outcrop occurrences |
| | | |
Line 52: |
Line 53: |
| | | |
| * Depositional environment | | * Depositional environment |
− | * Facies distribution | + | * [[Lithofacies|Facies]] distribution |
− | * Provenance | + | * [http://encyclopedia2.thefreedictionary.com/provenance Provenance] |
| * Internal stratigraphic subdivisions | | * Internal stratigraphic subdivisions |
− | * Age diagnostic criteria: fossils, intrusives, marker horizons | + | * Age diagnostic criteria: fossils, [http://www.geolsoc.org.uk/ks3/gsl/education/resources/rockcycle/page3598.html intrusives], marker horizons |
| * Electric log responses | | * Electric log responses |
| * Pay distribution: vertical, lateral | | * Pay distribution: vertical, lateral |
Line 65: |
Line 66: |
| * Texture: [[grain size]], [[Core_description#Maturity|sorting]], roundness, crystallinity | | * Texture: [[grain size]], [[Core_description#Maturity|sorting]], roundness, crystallinity |
| * Degree of cementation | | * Degree of cementation |
− | * Diagenetic alteration | + | * [[Diagenesis|Diagenetic]] alteration |
| * Microfossils | | * Microfossils |
| * [[Fracture]]s | | * [[Fracture]]s |
Line 78: |
Line 79: |
| * Organic richness | | * Organic richness |
| * Thermal maturity | | * Thermal maturity |
− | * Kerogen type | + | * [[Kerogen types|Kerogen type]] |
− | * Depositional environment | + | * [[Depositional environments|Depositional environment]] |
− | * Facies | + | * [[Lithofacies|Facies]] |
| * Mappability | | * Mappability |
| * Carbonate vs. clastic | | * Carbonate vs. clastic |
Line 92: |
Line 93: |
| * [[Capillary pressure]] | | * [[Capillary pressure]] |
| * Lateral continuity of sealing formations | | * Lateral continuity of sealing formations |
− | * Presence of evaporates | + | * Presence of [[evaporite]]s |
− | * Fracture systems | + | * [[Fracture]] systems |
| | | |
| ===Thermal history=== | | ===Thermal history=== |
Line 108: |
Line 109: |
| * [[Fracture]]s | | * [[Fracture]]s |
| * Lateral [[permeability]] and [[porosity]] | | * Lateral [[permeability]] and [[porosity]] |
− | * Controls on migration | + | * Controls on [[migration]] |
| | | |
| ===Geologic history=== | | ===Geologic history=== |
Line 120: |
Line 121: |
| * Significant episodes of volcanism, subsidence, uplift, erosion | | * Significant episodes of volcanism, subsidence, uplift, erosion |
| * Rates of deposition | | * Rates of deposition |
− | * Paleotopography | + | * [[Paleogeography|Paleotopography]] |
− | * Paleoshoreline | + | * [[Paleoclimatology|Paleoclimate]] |
− | * Paleoclimate
| + | * [http://www.stratigraphy.org/upload/bak/chron.htm Chronostratigraphy] |
− | * Chronostratigraphy | |
| | | |
| ===Structural history and style=== | | ===Structural history and style=== |
Line 136: |
Line 136: |
| * Major faults vs. minor faults | | * Major faults vs. minor faults |
| * Zones of weakness | | * Zones of weakness |
− | * Dip domains | + | * [[Dip]] domains |
| * Outcrop patterns | | * Outcrop patterns |
− | * Dip and strike trends | + | * Dip and [[strike]] trends |
− | * Average throw on faults | + | * Average [[Wikipedia:Fault_(geology)#Slip.2C_heave.2C_throw|throw]] on faults |
| | | |
| ==See also== | | ==See also== |