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Influence of the grain shape and packing texture on the primary porosity of sandstone: Insights from a numerical simulation

文献类型：期刊论文

作者Yan, Yiming1,3; Zhang, Liqiang1,3; Luo, Xiaorong2; Liu, Keyu3; Jia, Tong1,3; Lu, Yanjun1,3
刊名SEDIMENTOLOGY
出版日期2023-05-28
页码30
ISSN号0037-0746
关键词Discrete-element-method simulated grain packing texture grain shape primary porosity sandstone
DOI10.1111/sed.13098
英文摘要Sandstone is an important carrier of underground hydrocarbon and the geological sequestration of carbon dioxide. Primary porosity is an important parameter used to predict reservoir quality, and it is influenced by the grain shape, grain-size distribution and grain packing texture. However, few studies have focused on deriving multivariate equations of the grain size, grain-size distribution and grain packing texture to predict the primary porosity of sandstone. The natural sedimentary process of sandstones was designed and simulated using a discrete element method. The results confirmed that the primary porosity is influenced by roundness, flatness, elongation, grain-size distribution and grain packing texture; of the attributes, the mean grain size contributes less to the primary porosity of sandstone. Based on 193 simulated sandstone samples with a one-component grain packing texture, a mathematical model considering roundness, flatness, elongation, grain packing texture and grain-size distribution was proposed. The maximum, mean absolute and root mean square errors were 0.71, 0.26 and 0.32, respectively. The correlation coefficient between the simulated results and mathematical predicted results was 0.94. Furthermore, the primary porosity was positively correlated with the kurtosis of the grain-size distribution in sandstone with the same grain shape but different kurtosis. The primary porosity was found to be independent of the mean grain size and mainly affected by the grain packing texture. Moreover, the primary porosity prediction model for sandstones with different grain-size distribution curves based on the grain packing texture, which was proposed by the author in a previous study, was verified, and the correlation coefficient between the simulated results and predicted results was >0.92. The new mathematical model proposed in this study is a useful supplement for key parameter acquisition in the previous primary porosity prediction model of sandstone with different grain-size distribution curves and grain packing texture. A mathematical model considering roundness, flatness, elongation, grain packing texture and grain-size distribution is of great significance for reservoir quality prediction and conducting a quantitative evaluation of the diagenesis.
WOS关键词PARTICLE-SHAPE ; VOID RATIOS ; ROUNDNESS ; SAND ; STRENGTH ; DENSITY ; VOLUME ; MODEL
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010202] ; National Natural Science Foundation of China[42002145] ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin[ZD 2019-183] ; Fundamental Research Funds for the Central Universities[22CX06003A]
WOS研究方向Geology
语种英语
出版者WILEY
WOS记录号WOS:000995977500001
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Key Technology of Efficient Exploration and Development of Deep Oil and Gas in Tarim Basin ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/110943]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Zhang, Liqiang
作者单位1.China Univ Petr, Key Lab Deep Oil & Gas, Qingdao 266555, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.China Univ Petr, Sch Geosci, Qingdao 266555, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Yiming,Zhang, Liqiang,Luo, Xiaorong,et al. Influence of the grain shape and packing texture on the primary porosity of sandstone: Insights from a numerical simulation[J]. SEDIMENTOLOGY,2023:30.
APA Yan, Yiming,Zhang, Liqiang,Luo, Xiaorong,Liu, Keyu,Jia, Tong,&Lu, Yanjun.(2023).Influence of the grain shape and packing texture on the primary porosity of sandstone: Insights from a numerical simulation.SEDIMENTOLOGY,30.
MLA Yan, Yiming,et al."Influence of the grain shape and packing texture on the primary porosity of sandstone: Insights from a numerical simulation".SEDIMENTOLOGY (2023):30.

入库方式： OAI收割

来源：地质与地球物理研究所

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