Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina
Volcanic rocks develop primary and secondary porosity and permeability, depending on both their lithology and the sequence of processes involved in their formation. Primary processes (welding, deuteric crystal dissolution, gas release, flow fragmentation, and crystal shattering) may lead to high por...
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2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01491423_v91_n1_p115_Sruoga http://hdl.handle.net/20.500.12110/paper_01491423_v91_n1_p115_Sruoga |
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paper:paper_01491423_v91_n1_p115_Sruoga2023-06-08T15:13:13Z Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina Argentina Petrophysical data Reservoir quality Dissolution Hydraulic fracturing Lithology Mechanical permeability Petroleum prospecting Porosity Volcanic rocks Petroleum reservoirs ignimbrite lithology permeability porosity reservoir Argentina Austral Basin Neuquen Basin Patagonia South America Volcanic rocks develop primary and secondary porosity and permeability, depending on both their lithology and the sequence of processes involved in their formation. Primary processes (welding, deuteric crystal dissolution, gas release, flow fragmentation, and crystal shattering) may lead to high porosity and permeability, the best example of which is a nonwelded ignimbrite with well-developed gaspipe zones. Secondary processes (different types of alteration), however, tend to decrease primary porosity. However, certain secondary processes, such as dissolution and hydraulic fracturing, may contribute to enhance total porosity and permeability. These conclusions were developed through a systematic review of reservoir quality in volcanic rocks, integrating lithology and process interpretation with petrophysical data. The said information was taken from selected cores of volcanic rocks from the Serie Tobífera unit in the Austral Basin and the Precuyano unit in the Neuquén Basin, Argentina. A clear understanding of both primary and secondary processes may serve to predict the quality of volcanic reservoirs and could be used as a guide for oil and gas exploration and development in many parts of the world. Copyright © 2007. The American Association of Petroleum Geologists. All rights reserved. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01491423_v91_n1_p115_Sruoga http://hdl.handle.net/20.500.12110/paper_01491423_v91_n1_p115_Sruoga |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Argentina Petrophysical data Reservoir quality Dissolution Hydraulic fracturing Lithology Mechanical permeability Petroleum prospecting Porosity Volcanic rocks Petroleum reservoirs ignimbrite lithology permeability porosity reservoir Argentina Austral Basin Neuquen Basin Patagonia South America |
| spellingShingle |
Argentina Petrophysical data Reservoir quality Dissolution Hydraulic fracturing Lithology Mechanical permeability Petroleum prospecting Porosity Volcanic rocks Petroleum reservoirs ignimbrite lithology permeability porosity reservoir Argentina Austral Basin Neuquen Basin Patagonia South America Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina |
| topic_facet |
Argentina Petrophysical data Reservoir quality Dissolution Hydraulic fracturing Lithology Mechanical permeability Petroleum prospecting Porosity Volcanic rocks Petroleum reservoirs ignimbrite lithology permeability porosity reservoir Argentina Austral Basin Neuquen Basin Patagonia South America |
| description |
Volcanic rocks develop primary and secondary porosity and permeability, depending on both their lithology and the sequence of processes involved in their formation. Primary processes (welding, deuteric crystal dissolution, gas release, flow fragmentation, and crystal shattering) may lead to high porosity and permeability, the best example of which is a nonwelded ignimbrite with well-developed gaspipe zones. Secondary processes (different types of alteration), however, tend to decrease primary porosity. However, certain secondary processes, such as dissolution and hydraulic fracturing, may contribute to enhance total porosity and permeability. These conclusions were developed through a systematic review of reservoir quality in volcanic rocks, integrating lithology and process interpretation with petrophysical data. The said information was taken from selected cores of volcanic rocks from the Serie Tobífera unit in the Austral Basin and the Precuyano unit in the Neuquén Basin, Argentina. A clear understanding of both primary and secondary processes may serve to predict the quality of volcanic reservoirs and could be used as a guide for oil and gas exploration and development in many parts of the world. Copyright © 2007. The American Association of Petroleum Geologists. All rights reserved. |
| title |
Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina |
| title_short |
Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina |
| title_full |
Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina |
| title_fullStr |
Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina |
| title_full_unstemmed |
Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina |
| title_sort |
processes controlling porosity and permeability in volcanic reservoirs from the austral and neuquén basins, argentina |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01491423_v91_n1_p115_Sruoga http://hdl.handle.net/20.500.12110/paper_01491423_v91_n1_p115_Sruoga |
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1768546438562709504 |