Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China
The parameters of grain size, contents of silica, kaolinite, hydromica, calcite, and a geological time of tight sandstone reservoirs in Upper Paleozoic in Ordos basin were researched thoroughly, and the impact of the diagenetic evolution process of different sandstone types on porosity and throats w...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/5517494 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832549668234461184 |
|---|---|
| author | Qing Cao Zhangxing Chen JingZhou Zhao Jiacheng Dang Jiaxuan Song Bin Chen |
| author_facet | Qing Cao Zhangxing Chen JingZhou Zhao Jiacheng Dang Jiaxuan Song Bin Chen |
| author_sort | Qing Cao |
| collection | DOAJ |
| description | The parameters of grain size, contents of silica, kaolinite, hydromica, calcite, and a geological time of tight sandstone reservoirs in Upper Paleozoic in Ordos basin were researched thoroughly, and the impact of the diagenetic evolution process of different sandstone types on porosity and throats was analyzed, based on the quantitative statistics from thin sections, measurements of porosity and permeability, and conventional and constant-rate mercury injection tests. We not only build the evolution of porosity through process-oriented numerical simulations during the geological time but also establish effect-oriented numerical simulations between porosity and different diagenesis parameters. Furthermore, we set up a fitting relationship between diagenetic factors and pore throats in different gas-bearing reservoirs. Differentiation results in the evolution of porosity and a pore-throat system of sandstone types have clear characteristics, such as lithic quartz sandstones of the He 8 Member in the Sulige area and quartz sandstones of the Shan 2 Member in the Yulin area. The fitting results show that the main factors influencing the evolution of porosity and a pore-throat system are grain size and siliceous cement, which can also be validated by the measured data on two gas-bearing intervals. The results are important to a deep understanding of the relationship between the reservoir continuing to experience porosity and permeability evolution and the timing of petroleum charging into the reservoir and can also be applied elsewhere as a quick means in high grading areas of risks during field development. |
| format | Article |
| id | doaj-art-9428e2ce49494295a2e16ff415c9276a |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-9428e2ce49494295a2e16ff415c9276a2025-02-03T06:10:48ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/55174945517494Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, ChinaQing Cao0Zhangxing Chen1JingZhou Zhao2Jiacheng Dang3Jiaxuan Song4Bin Chen5Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi’an Shiyou University, Shaanxi 710065, ChinaReservoir Simulation Group, Department of Chemical & Petroleum Engineering, University of Calgary, Alberta, T2N 1N4, CanadaShaanxi Key Laboratory of Petroleum Accumulation Geology, Xi’an Shiyou University, Shaanxi 710065, ChinaShaanxi Key Laboratory of Petroleum Accumulation Geology, Xi’an Shiyou University, Shaanxi 710065, ChinaResearch Institute of Yanchang Petroleum (Group) Co., Ltd., Xi’an, 710065 Shaanxi, ChinaShaanxi Key Laboratory of Petroleum Accumulation Geology, Xi’an Shiyou University, Shaanxi 710065, ChinaThe parameters of grain size, contents of silica, kaolinite, hydromica, calcite, and a geological time of tight sandstone reservoirs in Upper Paleozoic in Ordos basin were researched thoroughly, and the impact of the diagenetic evolution process of different sandstone types on porosity and throats was analyzed, based on the quantitative statistics from thin sections, measurements of porosity and permeability, and conventional and constant-rate mercury injection tests. We not only build the evolution of porosity through process-oriented numerical simulations during the geological time but also establish effect-oriented numerical simulations between porosity and different diagenesis parameters. Furthermore, we set up a fitting relationship between diagenetic factors and pore throats in different gas-bearing reservoirs. Differentiation results in the evolution of porosity and a pore-throat system of sandstone types have clear characteristics, such as lithic quartz sandstones of the He 8 Member in the Sulige area and quartz sandstones of the Shan 2 Member in the Yulin area. The fitting results show that the main factors influencing the evolution of porosity and a pore-throat system are grain size and siliceous cement, which can also be validated by the measured data on two gas-bearing intervals. The results are important to a deep understanding of the relationship between the reservoir continuing to experience porosity and permeability evolution and the timing of petroleum charging into the reservoir and can also be applied elsewhere as a quick means in high grading areas of risks during field development.http://dx.doi.org/10.1155/2021/5517494 |
| spellingShingle | Qing Cao Zhangxing Chen JingZhou Zhao Jiacheng Dang Jiaxuan Song Bin Chen Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China Geofluids |
| title | Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China |
| title_full | Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China |
| title_fullStr | Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China |
| title_full_unstemmed | Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China |
| title_short | Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China |
| title_sort | numerical simulation study of pore throat evolution of upper paleozoic in ordos basin china |
| url | http://dx.doi.org/10.1155/2021/5517494 |
| work_keys_str_mv | AT qingcao numericalsimulationstudyofporethroatevolutionofupperpaleozoicinordosbasinchina AT zhangxingchen numericalsimulationstudyofporethroatevolutionofupperpaleozoicinordosbasinchina AT jingzhouzhao numericalsimulationstudyofporethroatevolutionofupperpaleozoicinordosbasinchina AT jiachengdang numericalsimulationstudyofporethroatevolutionofupperpaleozoicinordosbasinchina AT jiaxuansong numericalsimulationstudyofporethroatevolutionofupperpaleozoicinordosbasinchina AT binchen numericalsimulationstudyofporethroatevolutionofupperpaleozoicinordosbasinchina |