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Surficial geochemical exploration principles (view source)
Revision as of 19:23, 24 January 2022
, 19:23, 24 January 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 = Surface geochemical exploration for petroleum
| chapter = Surface geochemical exploration for petroleum
| frompg = 18-1
| frompg = 18-3
| topg = 18-27
| topg = 18-5
| author = Dietmar Schumacher
| author = Dietmar Schumacher
| link = http://archives.datapages.com/data/specpubs/beaumont/ch18/ch18.htm
| link = http://archives.datapages.com/data/specpubs/beaumont/ch18/ch18.htm
| isbn = 0-89181-602-X
| isbn = 0-89181-602-X
}}
}}
Surface indications of oil and gas seepage have been noted for thousands of years, and such seeps have led to the discovery of many important petroleum producing areas. Over the past sixty years, numerous geochemical and nonseismic geophysical surface exploration methods have been developed. The application of these geochemical prospecting methods to oil and gas exploration has resulted in varied success and occasional controversy. Few question the fact that hydrocarbons migrate to the surface in detectable amounts, but many remain uncertain of how such information can best be integrated into conventional exploration and development programs.
==Definition==
==Definition==
==Significance of anomalies==
==Significance of anomalies==
Surface indications of oil and gas seepage have been noted for thousands of years; such seeps have led to the discovery of many important petroleum producing areas. Although the discovery of a surface geochemical anomaly does not guarantee the discovery of commercially significant petroleum, it does establish the presence of hydrocarbons in the area of interest. Hydrocarbon seeps at the surface represent the end of the migration pathway. Traps and structures along such pathways should be considered significantly more prospective than those not associated with such anomalies.
Surface indications of oil and gas seepage have been noted for thousands of years; such seeps have led to the discovery of many important petroleum producing areas. Although the discovery of a surface geochemical anomaly does not guarantee the discovery of commercially significant petroleum, it does establish the presence of hydrocarbons in the area of interest. Hydrocarbon seeps at the surface represent the end of the [[migration pathway]]. Traps and structures along such pathways should be considered significantly more prospective than those not associated with such anomalies.
==Benefits==
==Benefits==
==See also==
==See also==
* [[Assumptions of surface geochemical exploration]]
* [[Assumptions of surface geochemical exploration]]
* [[Limitations and uncertainties]]
* [[Limitations and uncertainties of surficial gechemistry]]
* [[Seepage activity]]
* [[Seepage activity and surficial geochemistry]]
* [[Macroseepage vs. Microseepage]]
* [[Macroseepage vs. microseepage in surficial geochemistry]]
* [[Surface expression]]
* [[Geochemical surface expression]]
* [[Surficial geochemical case histories]]
==References==
==References==
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Surface geochemical exploration for petroleum]]
[[Category:Surface geochemical exploration for petroleum]]
[[Category:Treatise Handbook 3]]