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Title: Geochemistry and habitat of oils in Italy

Abstract

Most of the onshore and offshore oil occurrences found in Italy have been systematically analyzed by different techniques, i.e., capillary gas chromatography, biological markers, and stable isotopes composition. On the basis of the above analyses, ten different groups of oil have been identified and geographically located. Subsequently, the influence of the various geological settings on generation and migration of these different groups of oils was investigated and is discussed here. Due to its complex geological and tectonic history, the Alpine-Apennine chain behaved differently with regard to oil generation and migration in different areas. In fact, the high temperatures reached by the Mesozoic source rocks underneath a stack of allochthonous thrust sheets and the insulting thermal blanket effect exerted by the same sheets on other younger source rocks above gave rise to generally light oils. Furthermore, in this unique geological setting, the most external thrust sheets locally acted as reservoirs of the foredeep regime. Foreland sequences acted as both reservoirs of the foredeep oils and as generative kitchens of liquid hydrocarbons if suitable source rocks were present and adequate burial was reached.

Authors:
;
Publication Date:
OSTI Identifier:
5992371
Report Number(s):
CONF-880301-
Resource Type:
Conference
Resource Relation:
Conference: Annual meeting of the American Association of Petroleum Geologists, Houston, TX, USA, 20-23 Mar 1988
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; ITALY; PETROLEUM GEOLOGY; PETROLEUM FRACTIONS; GEOCHEMISTRY; RESERVOIR ROCK; BIOLOGICAL MARKERS; GAS CHROMATOGRAPHY; GEOTHERMAL GRADIENTS; PRESSURE EFFECTS; STABLE ISOTOPES; TECTONICS; TEMPERATURE DEPENDENCE; CHEMISTRY; CHROMATOGRAPHY; ENERGY SOURCES; EUROPE; FOSSIL FUELS; FUELS; GEOLOGY; ISOTOPES; PETROLEUM; SEPARATION PROCESSES; TEMPERATURE GRADIENTS; WESTERN EUROPE; 020200* - Petroleum- Reserves, Geology, & Exploration

Citation Formats

Novelli, L, and Mattavelli, L. Geochemistry and habitat of oils in Italy. United States: N. p., 1988. Web.
Novelli, L, & Mattavelli, L. Geochemistry and habitat of oils in Italy. United States.
Novelli, L, and Mattavelli, L. 1988. "Geochemistry and habitat of oils in Italy". United States.
@article{osti_5992371,
title = {Geochemistry and habitat of oils in Italy},
author = {Novelli, L and Mattavelli, L},
abstractNote = {Most of the onshore and offshore oil occurrences found in Italy have been systematically analyzed by different techniques, i.e., capillary gas chromatography, biological markers, and stable isotopes composition. On the basis of the above analyses, ten different groups of oil have been identified and geographically located. Subsequently, the influence of the various geological settings on generation and migration of these different groups of oils was investigated and is discussed here. Due to its complex geological and tectonic history, the Alpine-Apennine chain behaved differently with regard to oil generation and migration in different areas. In fact, the high temperatures reached by the Mesozoic source rocks underneath a stack of allochthonous thrust sheets and the insulting thermal blanket effect exerted by the same sheets on other younger source rocks above gave rise to generally light oils. Furthermore, in this unique geological setting, the most external thrust sheets locally acted as reservoirs of the foredeep regime. Foreland sequences acted as both reservoirs of the foredeep oils and as generative kitchens of liquid hydrocarbons if suitable source rocks were present and adequate burial was reached.},
doi = {},
url = {https://www.osti.gov/biblio/5992371}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}

Conference:
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