Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures
This study addresses the unclear understanding of the primary factors controlling fluid mobility in the tuff reservoirs of the Huoshiling Formation from the Dehui Fault Depression, southeastern Songliao Basin. Through physical property analysis, X-ray diffraction (XRD), field emission scanning elect...
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2024.1502160/full |
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| author | Tianfu Liu Tianfu Liu Wei Zhang Chong Chen Huaiming Shen Wenjie Shao Peng Sun Peng Sun |
| author_facet | Tianfu Liu Tianfu Liu Wei Zhang Chong Chen Huaiming Shen Wenjie Shao Peng Sun Peng Sun |
| author_sort | Tianfu Liu |
| collection | DOAJ |
| description | This study addresses the unclear understanding of the primary factors controlling fluid mobility in the tuff reservoirs of the Huoshiling Formation from the Dehui Fault Depression, southeastern Songliao Basin. Through physical property analysis, X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), thin section (TS), pressure-controlled porosimetry (PCP), rate-controlled porosimetry (RCP), and nuclear magnetic resonance experiments (NMR) on ten tuff samples, we conducted a comprehensive and in-depth exploration of the influencing factors that control the mobility of reservoir fluids. The results indicate: 1) The primary mineral types in the tuff reservoirs are quartz, feldspar, and clay minerals, with porosity predominantly characterized by dissolution pores and intergranular pores; 2) Based on the morphology of PCP intrusion curves, the tuff samples from the study area can be categorized into three types, with reservoir quality progressively deteriorating from Type I to Type III; 3) Compared to the movable fluids saturation (MFS), movable fluids porosity (MFP) is more suitable for characterizing fluid mobility. The mobility of fluids is influenced by various factors such as mineral composition, physical property, pore-throat connectivity, pore type and heterogeneity. MFS and MFP show a positive correlation with permeability, the content of quartz and feldspar, median pore-throat radius (R50), average throat radius (ATR), average pore-throat radius ratio (APT), T2 cutoff value (T2-C), average throat radius (RT), sorting coefficient (SC), and intergranular pore dominate space (Inter-DS), while a negative correlation with the content of calcite and clay minerals, average pore-throat radius ratio, and the fractal dimension from NMR (DNMR). This study elucidates the influencing factors of fluid mobility in tuff reservoirs, which has important reference significance for the scientific development of this type of gas reservoir. |
| format | Article |
| id | doaj-art-45f06269a0b9447689c897a07e7e07fa |
| institution | Kabale University |
| issn | 2296-6463 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj-art-45f06269a0b9447689c897a07e7e07fa2024-11-19T06:15:41ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632024-11-011210.3389/feart.2024.15021601502160Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structuresTianfu Liu0Tianfu Liu1Wei Zhang2Chong Chen3Huaiming Shen4Wenjie Shao5Peng Sun6Peng Sun7PetroChina Usmile Company Limited, Beijing, ChinaSchool of Economics and Management, Northeast Petroleum University, Daqing, Heilongjiang, ChinaNorth China Branch, China National Logging Corporation, Renqiu, Hebei, ChinaThe Six Geological Party, Tibet Bureau of Geological and Mineral Exploration and Development, Lasa, Xizang, ChinaThe Six Geological Party, Tibet Bureau of Geological and Mineral Exploration and Development, Lasa, Xizang, ChinaHenan Fifth Geological Exploration Institute Co., Ltd., Zhengzhou, Henan, ChinaSchool of Petroleum Engineering, Yangtze University, Wuhan, ChinaHubei Key Laboratory of Petroleum Geochemistry and Environment, Yangtze University, Wuhan, ChinaThis study addresses the unclear understanding of the primary factors controlling fluid mobility in the tuff reservoirs of the Huoshiling Formation from the Dehui Fault Depression, southeastern Songliao Basin. Through physical property analysis, X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), thin section (TS), pressure-controlled porosimetry (PCP), rate-controlled porosimetry (RCP), and nuclear magnetic resonance experiments (NMR) on ten tuff samples, we conducted a comprehensive and in-depth exploration of the influencing factors that control the mobility of reservoir fluids. The results indicate: 1) The primary mineral types in the tuff reservoirs are quartz, feldspar, and clay minerals, with porosity predominantly characterized by dissolution pores and intergranular pores; 2) Based on the morphology of PCP intrusion curves, the tuff samples from the study area can be categorized into three types, with reservoir quality progressively deteriorating from Type I to Type III; 3) Compared to the movable fluids saturation (MFS), movable fluids porosity (MFP) is more suitable for characterizing fluid mobility. The mobility of fluids is influenced by various factors such as mineral composition, physical property, pore-throat connectivity, pore type and heterogeneity. MFS and MFP show a positive correlation with permeability, the content of quartz and feldspar, median pore-throat radius (R50), average throat radius (ATR), average pore-throat radius ratio (APT), T2 cutoff value (T2-C), average throat radius (RT), sorting coefficient (SC), and intergranular pore dominate space (Inter-DS), while a negative correlation with the content of calcite and clay minerals, average pore-throat radius ratio, and the fractal dimension from NMR (DNMR). This study elucidates the influencing factors of fluid mobility in tuff reservoirs, which has important reference significance for the scientific development of this type of gas reservoir.https://www.frontiersin.org/articles/10.3389/feart.2024.1502160/fulltuff reservoirspore-throat structurefluid mobilityhuoshiling formationSongliao Basin |
| spellingShingle | Tianfu Liu Tianfu Liu Wei Zhang Chong Chen Huaiming Shen Wenjie Shao Peng Sun Peng Sun Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures Frontiers in Earth Science tuff reservoirs pore-throat structure fluid mobility huoshiling formation Songliao Basin |
| title | Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures |
| title_full | Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures |
| title_fullStr | Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures |
| title_full_unstemmed | Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures |
| title_short | Controlling factors of fluid mobility in the tuff reservoirs of the Huoshiling formation, Dehui fault depression, southeastern Songliao Basin: insights from micro-nano pore structures |
| title_sort | controlling factors of fluid mobility in the tuff reservoirs of the huoshiling formation dehui fault depression southeastern songliao basin insights from micro nano pore structures |
| topic | tuff reservoirs pore-throat structure fluid mobility huoshiling formation Songliao Basin |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1502160/full |
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