Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression
In the Es3 formation (third section of the Shahejie) of the Eastern sag section of the Liaohe Depression, basalt and trachyte are predominant in the igneous rock. The reservoir consists of complex reservoir space types. Based on the porosity bins of nuclear magnetic logging and the porosity distribu...
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| Format: | Article |
| Language: | English |
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De Gruyter
2017-05-01
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| Series: | Open Geosciences |
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| Online Access: | https://doi.org/10.1515/geo-2017-0014 |
| _version_ | 1819101785722191872 |
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| author | Zongli Liu Zhuwen Wang Dapeng Zhou Shuqin Zhao Min Xiang |
| author_facet | Zongli Liu Zhuwen Wang Dapeng Zhou Shuqin Zhao Min Xiang |
| author_sort | Zongli Liu |
| collection | DOAJ |
| description | In the Es3 formation (third section of the Shahejie) of the Eastern sag section of the Liaohe Depression, basalt and trachyte are predominant in the igneous rock. The reservoir consists of complex reservoir space types. Based on the porosity bins of nuclear magnetic logging and the porosity distribution of electric imaging logging, the pores’ sizes and distribution, as well as the mutual connectivity of the reservoir, were analyzed. Also, the characteristics of the different reservoirs were summarized. In regards to the oil reservoirs, large pores (PS>10) were found to account for the majority of the reservoir spaces, and the pore distribution was concentrated and well connected. However, for the poor oil reservoirs, the large and small pores were found to alternate, and the pore distribution was scattered and poorly connected. Within the dry layers, the smaller pores (PS<10) were predominant. The pore distributions were found to be influenced by lithology, facies, and tectonism. The reservoirs of the pyroclastic flow of the explosive facies had good connectivity, and the interlayer heterogeneity was relatively weak. This reservoir’s pore distributions were found to be mainly dominated by the larger pores (PS10-PS13), which displayed a concentrated distribution mainly in one porosity bin. Therefore, it was taken as a favorable facie belt in the eastern sag of the Liaohe Depression. The examination of the pore distribution characteristics of the igneous rock was the key to the evaluation of the properties and effectiveness of the igneous reservoirs in this study, which potentially has great significance to the future exploration and development of igneous rock. |
| first_indexed | 2024-12-22T01:24:11Z |
| format | Article |
| id | doaj.art-e7eaf50dfd834988baa5018e2225964e |
| institution | Directory Open Access Journal |
| issn | 2391-5447 |
| language | English |
| last_indexed | 2024-12-22T01:24:11Z |
| publishDate | 2017-05-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Geosciences |
| spelling | doaj.art-e7eaf50dfd834988baa5018e2225964e2022-12-21T18:43:39ZengDe GruyterOpen Geosciences2391-54472017-05-019116117310.1515/geo-2017-0014geo-2017-0014Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe DepressionZongli Liu0Zhuwen Wang1Dapeng Zhou2Shuqin Zhao3Min Xiang4College of Geoexploration Science and Technology, Jilin University, Changchun, 130021, ChinaCollege of Geoexploration Science and Technology, Jilin University, Changchun, 130021, ChinaCollege of Geoexploration Science and Technology, Jilin University, Changchun, 130021, ChinaResearch Institute of Exploration and Development, PetroChina Liaohe Oilfield Branch Company, Panjin 124010, ChinaCollege of Geoexploration Science and Technology, Jilin University, Changchun, 130021, ChinaIn the Es3 formation (third section of the Shahejie) of the Eastern sag section of the Liaohe Depression, basalt and trachyte are predominant in the igneous rock. The reservoir consists of complex reservoir space types. Based on the porosity bins of nuclear magnetic logging and the porosity distribution of electric imaging logging, the pores’ sizes and distribution, as well as the mutual connectivity of the reservoir, were analyzed. Also, the characteristics of the different reservoirs were summarized. In regards to the oil reservoirs, large pores (PS>10) were found to account for the majority of the reservoir spaces, and the pore distribution was concentrated and well connected. However, for the poor oil reservoirs, the large and small pores were found to alternate, and the pore distribution was scattered and poorly connected. Within the dry layers, the smaller pores (PS<10) were predominant. The pore distributions were found to be influenced by lithology, facies, and tectonism. The reservoirs of the pyroclastic flow of the explosive facies had good connectivity, and the interlayer heterogeneity was relatively weak. This reservoir’s pore distributions were found to be mainly dominated by the larger pores (PS10-PS13), which displayed a concentrated distribution mainly in one porosity bin. Therefore, it was taken as a favorable facie belt in the eastern sag of the Liaohe Depression. The examination of the pore distribution characteristics of the igneous rock was the key to the evaluation of the properties and effectiveness of the igneous reservoirs in this study, which potentially has great significance to the future exploration and development of igneous rock.https://doi.org/10.1515/geo-2017-0014eastern liaohe basinigneous rockreservoir space typeslithofaciespore distributionmercury injection curve |
| spellingShingle | Zongli Liu Zhuwen Wang Dapeng Zhou Shuqin Zhao Min Xiang Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression Open Geosciences eastern liaohe basin igneous rock reservoir space types lithofacies pore distribution mercury injection curve |
| title | Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression |
| title_full | Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression |
| title_fullStr | Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression |
| title_full_unstemmed | Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression |
| title_short | Pore Distribution Characteristics of the Igneous Reservoirs in the Eastern Sag of the Liaohe Depression |
| title_sort | pore distribution characteristics of the igneous reservoirs in the eastern sag of the liaohe depression |
| topic | eastern liaohe basin igneous rock reservoir space types lithofacies pore distribution mercury injection curve |
| url | https://doi.org/10.1515/geo-2017-0014 |
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