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Seismic scale importance (view source)
Revision as of 21:06, 3 February 2022
, 21:06, 3 February 2022added Category:Treatise Handbook 3 using HotCat
| part = Predicting the occurrence of oil and gas traps
| part = Predicting the occurrence of oil and gas traps
| chapter = Exploring for stratigraphic traps
| chapter = Exploring for stratigraphic traps
| frompg = 21-1
| frompg = 21-9
| topg = 21-68
| topg = 21-9
| author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks
| author = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks
| link = http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm
| link = http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm
| isbn = 0-89181-602-X
| isbn = 0-89181-602-X
}}
}}
==Scale and data type==
==Scale and data type==
[[file:exploring-for-stratigraphic-traps_fig21-4.png|300px|thumb|{{figure number|1}}Comparison of Pennsylvanian ({{Ma|Pennsylvanian}}) carbonate reef margin depositional sequences from the [[Delaware basin|Delaware]] and [[Paradox basin]]s, U.S.A. Copyright: Sarg;<ref name=Sarg1988>Sarg, J. F., 1988, Carbonate sequence stratigraphy, in C.K. Wilgus et al., eds., Sea-Level Changes—An Integrated Approach: SEPM Special Publication 42, p. 155–181.</ref> courtesy SEPM.]]
Correlations with well data, such as cuttings, cores, or well logs, can be done to a much higher resolution than seismic scale correlations. The scale of a seismic wavelet limits the scale of correlations within a seismic section. The geologist must refine these correlations to a higher resolution using well data to more accurately define the location of seals and reservoirs.
Correlations with well data, such as cuttings, cores, or well logs, can be done to a much higher resolution than seismic scale correlations. The scale of a seismic wavelet limits the scale of correlations within a seismic section. The geologist must refine these correlations to a higher resolution using well data to more accurately define the location of seals and reservoirs.
==Scale and trap detection==
==Scale and trap detection==
Scale makes a difference in ease of detection and, hence, affects risk. In the figures below, Pennsylvanian carbonate reef margin depositional sequences from the Delaware and Paradox basins, U.S.A., are compared. Note the difference in scale and how it affects [[seismic interpretation]]. Seismic detection of the Paradox basin traps is much more difficult because of the wavelength of the seismic wave vs. the reservoir thickness.
Scale makes a difference in ease of detection and, hence, affects risk. In [[:file:exploring-for-stratigraphic-traps_fig21-4.png|Figure 1]], Pennsylvanian ({{Ma|Pennsylvanian}}) carbonate reef margin depositional sequences from the [[Delaware basin|Delaware]] and [[Paradox basin]]s, U.S.A., are compared. Note the difference in scale and how it affects [[seismic interpretation]]. Seismic detection of the Paradox basin traps is much more difficult because of the wavelength of the seismic wave vs. the reservoir thickness.
[[file:exploring-for-stratigraphic-traps_fig21-4.png|thumb|{{figure number|21-4}}. Copyright: Sarg, 1988; courtesy SEPM.]]
==See also==
* [[Stratigraphic trap]]s
* [[Stratigraphic trap seals]]
* [[Diagenetic impact on traps]]
==See also==
==References==
{{reflist}}
==External links==
==External links==
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Exploring for stratigraphic traps]]
[[Category:Exploring for stratigraphic traps]]
[[Category:Treatise Handbook 3]]