Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones
Both the characteristics of pore structure and movable fluid are significant properties in controlling the flow regularity in pores in tight sandstones. However, the governing factors that affect the fluid flow features will still be a myth. In our research, the western area of the Sulige gas field...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2020/8820023 |
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| author | Dazhong Ren Fu Yang Rongxi Li Desheng Zhou Dengke Liu Ying Li |
| author_facet | Dazhong Ren Fu Yang Rongxi Li Desheng Zhou Dengke Liu Ying Li |
| author_sort | Dazhong Ren |
| collection | DOAJ |
| description | Both the characteristics of pore structure and movable fluid are significant properties in controlling the flow regularity in pores in tight sandstones. However, the governing factors that affect the fluid flow features will still be a myth. In our research, the western area of the Sulige gas field was chosen as the research region, and various kinds of experiments were conducted. Three reservoir groups, including intergranular-dissolved pore type, dissolved-intercrystalline pore type, and pore plus microcracks type were identified on the basis of pore development features. The results suggest that the intergranular-dissolved pore type has a more prominent influence on the high movable fluid saturation and larger pores. Both large throat sizes and homogeneous pore-throat degree demonstrate high movable fluid saturation. The increment of the thickness of water-film resulted from hydrophilic enhancement, indicating that an increased hydrophilic will decrease the movable fluid saturation and block the throats. The reservoirs of different pore combination types are closely related to the gas content of the reservoir. |
| format | Article |
| id | doaj-art-1156d29fe03243e290ca305e84373285 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-1156d29fe03243e290ca305e843732852025-02-03T05:58:27ZengWileyGeofluids1468-81151468-81232020-01-01202010.1155/2020/88200238820023Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight SandstonesDazhong Ren0Fu Yang1Rongxi Li2Desheng Zhou3Dengke Liu4Ying Li5Shaanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an Shiyou University, Xi’an 710065, ChinaKey Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an 710021, ChinaSchool of Earth Science and Resources, Chang’an University, Xi’an 710054, ChinaShaanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an Shiyou University, Xi’an 710065, ChinaKey Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an 710021, ChinaSchool of Earth Science and Resources, Chang’an University, Xi’an 710054, ChinaBoth the characteristics of pore structure and movable fluid are significant properties in controlling the flow regularity in pores in tight sandstones. However, the governing factors that affect the fluid flow features will still be a myth. In our research, the western area of the Sulige gas field was chosen as the research region, and various kinds of experiments were conducted. Three reservoir groups, including intergranular-dissolved pore type, dissolved-intercrystalline pore type, and pore plus microcracks type were identified on the basis of pore development features. The results suggest that the intergranular-dissolved pore type has a more prominent influence on the high movable fluid saturation and larger pores. Both large throat sizes and homogeneous pore-throat degree demonstrate high movable fluid saturation. The increment of the thickness of water-film resulted from hydrophilic enhancement, indicating that an increased hydrophilic will decrease the movable fluid saturation and block the throats. The reservoirs of different pore combination types are closely related to the gas content of the reservoir.http://dx.doi.org/10.1155/2020/8820023 |
| spellingShingle | Dazhong Ren Fu Yang Rongxi Li Desheng Zhou Dengke Liu Ying Li Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones Geofluids |
| title | Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones |
| title_full | Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones |
| title_fullStr | Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones |
| title_full_unstemmed | Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones |
| title_short | Insight into the Pore Structures and Its Impacts on Movable Fluid in Tight Sandstones |
| title_sort | insight into the pore structures and its impacts on movable fluid in tight sandstones |
| url | http://dx.doi.org/10.1155/2020/8820023 |
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