Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin
In recent years, oil and gas exploration of the Baikouquan Formation in the northwestern margin of the Junggar Basin has seen major breakthroughs have been made in oil and gas exploration. Sandstone and conglomerate reservoirs are developed in the Baikouquan Formation in this area, but the factors a...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.1033344/full |
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| author | Hao Kuang Hao Kuang Hao Liu Hao Liu Xianfeng Tan Xianfeng Tan Jingwei Yu Haiqiang Song Runchi Zhou Runchi Zhou Junmin Wang Junmin Wang Fei Liu |
| author_facet | Hao Kuang Hao Kuang Hao Liu Hao Liu Xianfeng Tan Xianfeng Tan Jingwei Yu Haiqiang Song Runchi Zhou Runchi Zhou Junmin Wang Junmin Wang Fei Liu |
| author_sort | Hao Kuang |
| collection | DOAJ |
| description | In recent years, oil and gas exploration of the Baikouquan Formation in the northwestern margin of the Junggar Basin has seen major breakthroughs have been made in oil and gas exploration. Sandstone and conglomerate reservoirs are developed in the Baikouquan Formation in this area, but the factors affecting the differences in petro physical properties of these two types of reservoirs are still unclear. In this paper, taking the Baikouquan Formation in the Hongcheguai area on the northwestern margin of the Junggar Basin as an example, a large number of core observations, thin sections, scanning electron microscopy, and petro physical property test data were used to evaluate the petro logical characteristics, reservoir space types, digenesis and pore evolution of the sandstone and conglomerate reservoirs. The results show that the sandstone and conglomerate rocks of the Baikouquan Formation in the study area have a large content of tuffaceous components. The sandstone reservoirs are dominated by primary intergranular pores, and the conglomerate reservoirs are dominated by secondary dissolved pores. In addition, the porosity is negatively correlated with rock permeability for the conglomerate rocks of the Baikouquan Formation. However, the porosity is positively correlated with rock permeability of the sandstone reservoirs. According to the analysis of the digenetic process, the compaction and cementation can lead to a significant decrease in the petro physical properties of the reservoir. While dissolution can improve the petro physical properties of the sandstone reservoirs to a small extent, and can improve that of the conglomerate reservoirs to a greater extent. Moreover, local fractures are important factors affecting the petro physical properties of the conglomerate reservoirs. The existence of abnormal high pressure has a certain effect on the preservation of primary pores. On the whole, the controlling factors of the petro physical properties of the conglomerate reservoirs in the Baikouquan Formation include sedimentation, diagenesis, and tectonic actives, while that of the sandstone reservoirs mainly include sedimentation and diagenesis. |
| first_indexed | 2024-04-11T00:14:18Z |
| format | Article |
| id | doaj.art-774c95dfc31747a58e704fd531e23a92 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-11T00:14:18Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj.art-774c95dfc31747a58e704fd531e23a922023-01-09T05:21:36ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-01-011010.3389/feart.2022.10333441033344Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar BasinHao Kuang0Hao Kuang1Hao Liu2Hao Liu3Xianfeng Tan4Xianfeng Tan5Jingwei Yu6Haiqiang Song7Runchi Zhou8Runchi Zhou9Junmin Wang10Junmin Wang11Fei Liu12School of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing, ChinaChongqing Key Laboratory of Complex Oil and Gas Exploration and Development, Chongqing, ChinaSchool of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing, ChinaChongqing Key Laboratory of Complex Oil and Gas Exploration and Development, Chongqing, ChinaSchool of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing, ChinaChongqing Key Laboratory of Complex Oil and Gas Exploration and Development, Chongqing, ChinaPetroleum Institute, China University of Petroleum (Beijing) at Karamay, Xinjiang, ChinaShaanxi Yanchang Petroleum International Exploration and Development Engineering Co., Ltd., Shaanxi, ChinaSchool of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing, ChinaChongqing Key Laboratory of Complex Oil and Gas Exploration and Development, Chongqing, ChinaSchool of Petroleum and Natural Gas Engineering, Chongqing University of Science and Technology, Chongqing, ChinaChongqing Key Laboratory of Complex Oil and Gas Exploration and Development, Chongqing, ChinaChongqing Gas Field, PetroChina Southwest Oil and Gas Field Company, Chongqing, ChinaIn recent years, oil and gas exploration of the Baikouquan Formation in the northwestern margin of the Junggar Basin has seen major breakthroughs have been made in oil and gas exploration. Sandstone and conglomerate reservoirs are developed in the Baikouquan Formation in this area, but the factors affecting the differences in petro physical properties of these two types of reservoirs are still unclear. In this paper, taking the Baikouquan Formation in the Hongcheguai area on the northwestern margin of the Junggar Basin as an example, a large number of core observations, thin sections, scanning electron microscopy, and petro physical property test data were used to evaluate the petro logical characteristics, reservoir space types, digenesis and pore evolution of the sandstone and conglomerate reservoirs. The results show that the sandstone and conglomerate rocks of the Baikouquan Formation in the study area have a large content of tuffaceous components. The sandstone reservoirs are dominated by primary intergranular pores, and the conglomerate reservoirs are dominated by secondary dissolved pores. In addition, the porosity is negatively correlated with rock permeability for the conglomerate rocks of the Baikouquan Formation. However, the porosity is positively correlated with rock permeability of the sandstone reservoirs. According to the analysis of the digenetic process, the compaction and cementation can lead to a significant decrease in the petro physical properties of the reservoir. While dissolution can improve the petro physical properties of the sandstone reservoirs to a small extent, and can improve that of the conglomerate reservoirs to a greater extent. Moreover, local fractures are important factors affecting the petro physical properties of the conglomerate reservoirs. The existence of abnormal high pressure has a certain effect on the preservation of primary pores. On the whole, the controlling factors of the petro physical properties of the conglomerate reservoirs in the Baikouquan Formation include sedimentation, diagenesis, and tectonic actives, while that of the sandstone reservoirs mainly include sedimentation and diagenesis.https://www.frontiersin.org/articles/10.3389/feart.2022.1033344/fullconglomeratesandstonereservoirpetro physical propertiescontrolling factorsBaikouquan formation |
| spellingShingle | Hao Kuang Hao Kuang Hao Liu Hao Liu Xianfeng Tan Xianfeng Tan Jingwei Yu Haiqiang Song Runchi Zhou Runchi Zhou Junmin Wang Junmin Wang Fei Liu Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin Frontiers in Earth Science conglomerate sandstone reservoir petro physical properties controlling factors Baikouquan formation |
| title | Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin |
| title_full | Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin |
| title_fullStr | Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin |
| title_full_unstemmed | Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin |
| title_short | Study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of Baikouquan Formation, Junggar Basin |
| title_sort | study on factors affecting the petro physical properties of sandstone and conglomerate reservoirs of baikouquan formation junggar basin |
| topic | conglomerate sandstone reservoir petro physical properties controlling factors Baikouquan formation |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.1033344/full |
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