Evolution of Fractal Pore Structure in Sedimentary Rocks

Abstract Geological processes alter pore spaces over time, and their analysis can shed light on the dynamic fractal structure and fluid flow of rocks over time. This study presents experimental evidence to illustrate that the pore fractal structure evolves with sedimentation, carbonate cementation,...

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Main Authors: Nengwu Zhou, Min Wang, Shuangfang Lu, Thomas J. H. Dodd, Wei Liu, Ying Guan
Format: Article
Language:English
Published: American Geophysical Union (AGU) 2022-06-01
Series:Earth and Space Science
Subjects:
Online Access:https://doi.org/10.1029/2021EA002167
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author Nengwu Zhou
Min Wang
Shuangfang Lu
Thomas J. H. Dodd
Wei Liu
Ying Guan
author_facet Nengwu Zhou
Min Wang
Shuangfang Lu
Thomas J. H. Dodd
Wei Liu
Ying Guan
author_sort Nengwu Zhou
collection DOAJ
description Abstract Geological processes alter pore spaces over time, and their analysis can shed light on the dynamic fractal structure and fluid flow of rocks over time. This study presents experimental evidence to illustrate that the pore fractal structure evolves with sedimentation, carbonate cementation, clay growth, and dissolution. It examines, describes and characterizes a suite of core samples from the Gaotaizi oil layer of the second and third members of the Qingshankou Formation, Songliao Basin, China. The effects of mechanical compaction and other diagenesis effects on fractal pore structure on sedimentary rocks are discussed. A schematic diagram is proposed that describes the impacts of these diagenetic processes on fractal pore structure at the microscopic scale in sedimentary rocks. This work links the state of diagenetic alteration and fractal pore structure, which can guide practical applications such as predicting the permeability of sedimentary rocks.
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spelling doaj.art-4d2f7ead23ae49f1823ef474a28277932022-12-22T02:32:47ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842022-06-0196n/an/a10.1029/2021EA002167Evolution of Fractal Pore Structure in Sedimentary RocksNengwu Zhou0Min Wang1Shuangfang Lu2Thomas J. H. Dodd3Wei Liu4Ying Guan5Key Laboratory of Deep Oil and Gas China University of Petroleum (East China) Qingdao ChinaKey Laboratory of Deep Oil and Gas China University of Petroleum (East China) Qingdao ChinaKey Laboratory of Deep Oil and Gas China University of Petroleum (East China) Qingdao ChinaBritish Geological Survey The Lyell Centre Edinburgh UKKey Laboratory of Deep Oil and Gas China University of Petroleum (East China) Qingdao ChinaKey Laboratory of Deep Oil and Gas China University of Petroleum (East China) Qingdao ChinaAbstract Geological processes alter pore spaces over time, and their analysis can shed light on the dynamic fractal structure and fluid flow of rocks over time. This study presents experimental evidence to illustrate that the pore fractal structure evolves with sedimentation, carbonate cementation, clay growth, and dissolution. It examines, describes and characterizes a suite of core samples from the Gaotaizi oil layer of the second and third members of the Qingshankou Formation, Songliao Basin, China. The effects of mechanical compaction and other diagenesis effects on fractal pore structure on sedimentary rocks are discussed. A schematic diagram is proposed that describes the impacts of these diagenetic processes on fractal pore structure at the microscopic scale in sedimentary rocks. This work links the state of diagenetic alteration and fractal pore structure, which can guide practical applications such as predicting the permeability of sedimentary rocks.https://doi.org/10.1029/2021EA002167fractal pore structurediagenesissedimentary rocksQingshankou formationSongliao basin
spellingShingle Nengwu Zhou
Min Wang
Shuangfang Lu
Thomas J. H. Dodd
Wei Liu
Ying Guan
Evolution of Fractal Pore Structure in Sedimentary Rocks
Earth and Space Science
fractal pore structure
diagenesis
sedimentary rocks
Qingshankou formation
Songliao basin
title Evolution of Fractal Pore Structure in Sedimentary Rocks
title_full Evolution of Fractal Pore Structure in Sedimentary Rocks
title_fullStr Evolution of Fractal Pore Structure in Sedimentary Rocks
title_full_unstemmed Evolution of Fractal Pore Structure in Sedimentary Rocks
title_short Evolution of Fractal Pore Structure in Sedimentary Rocks
title_sort evolution of fractal pore structure in sedimentary rocks
topic fractal pore structure
diagenesis
sedimentary rocks
Qingshankou formation
Songliao basin
url https://doi.org/10.1029/2021EA002167
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AT minwang evolutionoffractalporestructureinsedimentaryrocks
AT shuangfanglu evolutionoffractalporestructureinsedimentaryrocks
AT thomasjhdodd evolutionoffractalporestructureinsedimentaryrocks
AT weiliu evolutionoffractalporestructureinsedimentaryrocks
AT yingguan evolutionoffractalporestructureinsedimentaryrocks