Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin

The Permian igneous rocks in the Sichuan Basin represent a major breakthrough, opening up a new prospect for oil and gas exploration, and igneous reservoirs have become a new field of oil and gas exploration. Gravity-magnetic-electric exploration is an effective means of identifying igneous rocks an...

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Main Authors: Kui Xiang, Liangjun Yan, Zhigang Wang, Yao Lu
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/12/7/789
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author Kui Xiang
Liangjun Yan
Zhigang Wang
Yao Lu
author_facet Kui Xiang
Liangjun Yan
Zhigang Wang
Yao Lu
author_sort Kui Xiang
collection DOAJ
description The Permian igneous rocks in the Sichuan Basin represent a major breakthrough, opening up a new prospect for oil and gas exploration, and igneous reservoirs have become a new field of oil and gas exploration. Gravity-magnetic-electric exploration is an effective means of identifying igneous rocks and helps in reducing the multiplicity of the prediction results. However, the lithology of igneous rocks is quite different, and the exploration theory and evaluation techniques need urgently to be improved. In order to deeply study the response characteristics of the gravity-magnetic-electric and physical properties of the Permian igneous rocks in the Sichuan Basin and their relationships with the reservoir parameters, physical property testing was carried out on outcrop samples of the Permian igneous rocks in southwestern Sichuan. The comprehensive physical properties of the samples with different lithologies, including basalt, tuff, and volcanic breccia, were analyzed and studied. Based on the geological characteristics of the igneous rocks, such as the mineral composition, microstructure, and reservoir properties, a multi-parameter intersection relationship model for the resistivity, polarizability, density, magnetic susceptibility, and their relationships with the reservoir parameters was established, and effective parameters favorable for igneous rock identification and reservoir evaluation were identified. The results of this study provide a physical basis and technical support for non-seismic exploration of igneous oil and gas reservoirs in the Sichuan Basin.
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spelling doaj.art-594349b63d014c7f9c27bb8c206115252023-11-30T21:31:21ZengMDPI AGMinerals2075-163X2022-06-0112778910.3390/min12070789Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan BasinKui Xiang0Liangjun Yan1Zhigang Wang2Yao Lu3Key Laboratory of Exploration Technologies for Oil and Gas Resources, Yangtze University, Wuhan 430100, ChinaKey Laboratory of Exploration Technologies for Oil and Gas Resources, Yangtze University, Wuhan 430100, ChinaBureau of Geophysical Prospecting, China National Petroleum Corporation, Zhuozhou 100083, ChinaBureau of Geophysical Prospecting, China National Petroleum Corporation, Zhuozhou 100083, ChinaThe Permian igneous rocks in the Sichuan Basin represent a major breakthrough, opening up a new prospect for oil and gas exploration, and igneous reservoirs have become a new field of oil and gas exploration. Gravity-magnetic-electric exploration is an effective means of identifying igneous rocks and helps in reducing the multiplicity of the prediction results. However, the lithology of igneous rocks is quite different, and the exploration theory and evaluation techniques need urgently to be improved. In order to deeply study the response characteristics of the gravity-magnetic-electric and physical properties of the Permian igneous rocks in the Sichuan Basin and their relationships with the reservoir parameters, physical property testing was carried out on outcrop samples of the Permian igneous rocks in southwestern Sichuan. The comprehensive physical properties of the samples with different lithologies, including basalt, tuff, and volcanic breccia, were analyzed and studied. Based on the geological characteristics of the igneous rocks, such as the mineral composition, microstructure, and reservoir properties, a multi-parameter intersection relationship model for the resistivity, polarizability, density, magnetic susceptibility, and their relationships with the reservoir parameters was established, and effective parameters favorable for igneous rock identification and reservoir evaluation were identified. The results of this study provide a physical basis and technical support for non-seismic exploration of igneous oil and gas reservoirs in the Sichuan Basin.https://www.mdpi.com/2075-163X/12/7/789Sichuan Basinigneous rocksdensitymagnetic susceptibilitycomplex resistivity
spellingShingle Kui Xiang
Liangjun Yan
Zhigang Wang
Yao Lu
Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin
Minerals
Sichuan Basin
igneous rocks
density
magnetic susceptibility
complex resistivity
title Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin
title_full Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin
title_fullStr Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin
title_full_unstemmed Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin
title_short Comprehensive Physical Properties and Exploration Potential of the Permian Igneous Rocks in the Southwestern Sichuan Basin
title_sort comprehensive physical properties and exploration potential of the permian igneous rocks in the southwestern sichuan basin
topic Sichuan Basin
igneous rocks
density
magnetic susceptibility
complex resistivity
url https://www.mdpi.com/2075-163X/12/7/789
work_keys_str_mv AT kuixiang comprehensivephysicalpropertiesandexplorationpotentialofthepermianigneousrocksinthesouthwesternsichuanbasin
AT liangjunyan comprehensivephysicalpropertiesandexplorationpotentialofthepermianigneousrocksinthesouthwesternsichuanbasin
AT zhigangwang comprehensivephysicalpropertiesandexplorationpotentialofthepermianigneousrocksinthesouthwesternsichuanbasin
AT yaolu comprehensivephysicalpropertiesandexplorationpotentialofthepermianigneousrocksinthesouthwesternsichuanbasin