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- Hydrocarbon_indicator abstract "A hydrocarbon indicator (HCI) or direct hydrocarbon indicator (DHI), is any seismic attribute found via reflection seismology that indicates the presence of hydrocarbons in an oil or gas reservoir. DHIs are particularly useful in hydrocarbon exploration for reducing the risk of exploration wells. DHIs most commonly occur as bright spots, a local high amplitude anomaly which are displayed with bright colors so as to stand out from background amplitude variation, or as flat spots, which are horizontal reflectors that cross existing stratigraphy and indicate a hydrocarbon fluid level within an oil or gas reservoir. Dim spots, or low amplitude anomalies, may also serve as DHIs. Polarity reversals can occur where the capping rock has a slightly lower seismic velocity than the reservoir and the reflection has its sign reversed.An indication of gas is when the amplitude of a reflection increases with the angle of incidence. Normally it would decrease.Equipment prior to the 1970s had the bright spots obscured due to the automatic gain control.They are easier to observe in unconsolidated sediments, such as Tertiary basins. These basins are likely to be offshore but close to continents.".
- Hydrocarbon_indicator wikiPageID "41784423".
- Hydrocarbon_indicator wikiPageLength "1958".
- Hydrocarbon_indicator wikiPageOutDegree "14".
- Hydrocarbon_indicator wikiPageRevisionID "684323471".
- Hydrocarbon_indicator wikiPageWikiLink Amplitude_versus_offset.
- Hydrocarbon_indicator wikiPageWikiLink Automatic_gain_control.
- Hydrocarbon_indicator wikiPageWikiLink Bright_spot.
- Hydrocarbon_indicator wikiPageWikiLink Category:Geophysical_imaging.
- Hydrocarbon_indicator wikiPageWikiLink Dim_spot.
- Hydrocarbon_indicator wikiPageWikiLink Flat_spot_(reflection_seismology).
- Hydrocarbon_indicator wikiPageWikiLink Hydrocarbon.
- Hydrocarbon_indicator wikiPageWikiLink Hydrocarbon_exploration.
- Hydrocarbon_indicator wikiPageWikiLink Oil_well.
- Hydrocarbon_indicator wikiPageWikiLink Petroleum_reservoir.
- Hydrocarbon_indicator wikiPageWikiLink Polarity_reversal_(seismology).
- Hydrocarbon_indicator wikiPageWikiLink Reflection_seismology.
- Hydrocarbon_indicator wikiPageWikiLink Seismic_attribute.
- Hydrocarbon_indicator wikiPageWikiLink Stratigraphy.
- Hydrocarbon_indicator wikiPageWikiLinkText "Hydrocarbon indicator".
- Hydrocarbon_indicator wikiPageWikiLinkText "hydrocarbon indicator".
- Hydrocarbon_indicator wikiPageUsesTemplate Template:Geology-stub.
- Hydrocarbon_indicator wikiPageUsesTemplate Template:Reflist.
- Hydrocarbon_indicator subject Category:Geophysical_imaging.
- Hydrocarbon_indicator comment "A hydrocarbon indicator (HCI) or direct hydrocarbon indicator (DHI), is any seismic attribute found via reflection seismology that indicates the presence of hydrocarbons in an oil or gas reservoir. DHIs are particularly useful in hydrocarbon exploration for reducing the risk of exploration wells.".
- Hydrocarbon_indicator label "Hydrocarbon indicator".
- Hydrocarbon_indicator sameAs Q17028209.
- Hydrocarbon_indicator sameAs m.0_h2crv.
- Hydrocarbon_indicator sameAs Q17028209.
- Hydrocarbon_indicator wasDerivedFrom Hydrocarbon_indicator?oldid=684323471.
- Hydrocarbon_indicator isPrimaryTopicOf Hydrocarbon_indicator.