Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area
The dark marine shales which are thick in the Mesoproterozoic Hongshuizhuang formation and Xiamaling Formation in the Yanshan area are the subject of this study. The material compositions and pore characteristics were analyzed, and the reasons for the differences in the adsorption capacity of shale...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2019-01-01
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| Series: | Energy Exploration & Exploitation |
| Online Access: | https://doi.org/10.1177/0144598718797101 |
| _version_ | 1818720904746631168 |
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| author | Boyang Wang Qiusheng Zhang Gang Wang Miao Liu |
| author_facet | Boyang Wang Qiusheng Zhang Gang Wang Miao Liu |
| author_sort | Boyang Wang |
| collection | DOAJ |
| description | The dark marine shales which are thick in the Mesoproterozoic Hongshuizhuang formation and Xiamaling Formation in the Yanshan area are the subject of this study. The material compositions and pore characteristics were analyzed, and the reasons for the differences in the adsorption capacity of shale were emphatically discussed through geochemical analysis, X-ray diffraction, scanning electron microscope, low-temperature nitrogen adsorption, mercury injection experiment, isothermal adsorption, and other analysis methods. The results indicate that the samples are rich in high organic carbon content, and vitrinite reflectance suggests that the degree of thermal evolution is in the late-mature to high-mature stage; the mineral compositions mainly consist of quartz and clay minerals. The micropores are relatively developed, which mainly include intergranular pores, intragranular pores, microcracks, and many other pores. Results from the nitrogen adsorption analysis suggest that the pore structures can be divided into three types. Porosity has obvious fractal characteristics. The fractal dimensions of the adsorption pore are larger than those of the seepage hole. The difference of shale adsorption between the Hongshuizhuang Formation and Xiamaling Formation is mainly determined by the volume of micropores and transition pores and the different mineral compositions. |
| first_indexed | 2024-12-17T20:30:15Z |
| format | Article |
| id | doaj.art-0a12f6d9d5b44edb8409293f24b2ed67 |
| institution | Directory Open Access Journal |
| issn | 0144-5987 2048-4054 |
| language | English |
| last_indexed | 2024-12-17T20:30:15Z |
| publishDate | 2019-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Energy Exploration & Exploitation |
| spelling | doaj.art-0a12f6d9d5b44edb8409293f24b2ed672022-12-21T21:33:36ZengSAGE PublishingEnergy Exploration & Exploitation0144-59872048-40542019-01-013710.1177/0144598718797101Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan areaBoyang WangQiusheng ZhangGang WangMiao LiuThe dark marine shales which are thick in the Mesoproterozoic Hongshuizhuang formation and Xiamaling Formation in the Yanshan area are the subject of this study. The material compositions and pore characteristics were analyzed, and the reasons for the differences in the adsorption capacity of shale were emphatically discussed through geochemical analysis, X-ray diffraction, scanning electron microscope, low-temperature nitrogen adsorption, mercury injection experiment, isothermal adsorption, and other analysis methods. The results indicate that the samples are rich in high organic carbon content, and vitrinite reflectance suggests that the degree of thermal evolution is in the late-mature to high-mature stage; the mineral compositions mainly consist of quartz and clay minerals. The micropores are relatively developed, which mainly include intergranular pores, intragranular pores, microcracks, and many other pores. Results from the nitrogen adsorption analysis suggest that the pore structures can be divided into three types. Porosity has obvious fractal characteristics. The fractal dimensions of the adsorption pore are larger than those of the seepage hole. The difference of shale adsorption between the Hongshuizhuang Formation and Xiamaling Formation is mainly determined by the volume of micropores and transition pores and the different mineral compositions.https://doi.org/10.1177/0144598718797101 |
| spellingShingle | Boyang Wang Qiusheng Zhang Gang Wang Miao Liu Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area Energy Exploration & Exploitation |
| title | Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area |
| title_full | Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area |
| title_fullStr | Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area |
| title_full_unstemmed | Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area |
| title_short | Analysis on the difference of material composition and reservoir space of Mesoproterozoic dark marine shale in the Yanshan area |
| title_sort | analysis on the difference of material composition and reservoir space of mesoproterozoic dark marine shale in the yanshan area |
| url | https://doi.org/10.1177/0144598718797101 |
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