Estimating pore volume compressibility by spheroidal pore modeling of digital rocks
Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of d...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
SUI, Weibo [verfasserIn] QUAN, Zihan [verfasserIn] HOU, Yanan [verfasserIn] CHENG, Haoran [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Petroleum Exploration and Development - [Erscheinungsort nicht ermittelbar] : KeAi Communications Co., Ltd., 0000, 47, Seite 603-612 |
|---|---|
| Übergeordnetes Werk: |
volume:47 ; pages:603-612 |
| DOI / URN: |
10.1016/S1876-3804(20)60077-5 |
|---|
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ELV00432241X |
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| 520 | |a Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. | ||
| 650 | 4 | |a digital rock | |
| 650 | 4 | |a mesomechanics | |
| 650 | 4 | |a microscopic deformation | |
| 650 | 4 | |a spheroidal pore model | |
| 650 | 4 | |a pore volume compressibility coefficient | |
| 650 | 4 | |a calculation method | |
| 700 | 1 | |a QUAN, Zihan |e verfasserin |4 aut | |
| 700 | 1 | |a HOU, Yanan |e verfasserin |4 aut | |
| 700 | 1 | |a CHENG, Haoran |e verfasserin |4 aut | |
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10.1016/S1876-3804(20)60077-5 doi (DE-627)ELV00432241X (ELSEVIER)S1876-3804(20)60077-5 DE-627 ger DE-627 rda eng SUI, Weibo verfasserin aut Estimating pore volume compressibility by spheroidal pore modeling of digital rocks 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. digital rock mesomechanics microscopic deformation spheroidal pore model pore volume compressibility coefficient calculation method QUAN, Zihan verfasserin aut HOU, Yanan verfasserin aut CHENG, Haoran verfasserin aut Enthalten in Petroleum Exploration and Development [Erscheinungsort nicht ermittelbar] : KeAi Communications Co., Ltd., 0000 47, Seite 603-612 Online-Ressource (DE-627)1760627542 (DE-600)3071667-6 1876-3804 nnns volume:47 pages:603-612 GBV_USEFLAG_U SYSFLAG_U GBV_ELV AR 47 603-612 |
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10.1016/S1876-3804(20)60077-5 doi (DE-627)ELV00432241X (ELSEVIER)S1876-3804(20)60077-5 DE-627 ger DE-627 rda eng SUI, Weibo verfasserin aut Estimating pore volume compressibility by spheroidal pore modeling of digital rocks 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. digital rock mesomechanics microscopic deformation spheroidal pore model pore volume compressibility coefficient calculation method QUAN, Zihan verfasserin aut HOU, Yanan verfasserin aut CHENG, Haoran verfasserin aut Enthalten in Petroleum Exploration and Development [Erscheinungsort nicht ermittelbar] : KeAi Communications Co., Ltd., 0000 47, Seite 603-612 Online-Ressource (DE-627)1760627542 (DE-600)3071667-6 1876-3804 nnns volume:47 pages:603-612 GBV_USEFLAG_U SYSFLAG_U GBV_ELV AR 47 603-612 |
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10.1016/S1876-3804(20)60077-5 doi (DE-627)ELV00432241X (ELSEVIER)S1876-3804(20)60077-5 DE-627 ger DE-627 rda eng SUI, Weibo verfasserin aut Estimating pore volume compressibility by spheroidal pore modeling of digital rocks 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. digital rock mesomechanics microscopic deformation spheroidal pore model pore volume compressibility coefficient calculation method QUAN, Zihan verfasserin aut HOU, Yanan verfasserin aut CHENG, Haoran verfasserin aut Enthalten in Petroleum Exploration and Development [Erscheinungsort nicht ermittelbar] : KeAi Communications Co., Ltd., 0000 47, Seite 603-612 Online-Ressource (DE-627)1760627542 (DE-600)3071667-6 1876-3804 nnns volume:47 pages:603-612 GBV_USEFLAG_U SYSFLAG_U GBV_ELV AR 47 603-612 |
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10.1016/S1876-3804(20)60077-5 doi (DE-627)ELV00432241X (ELSEVIER)S1876-3804(20)60077-5 DE-627 ger DE-627 rda eng SUI, Weibo verfasserin aut Estimating pore volume compressibility by spheroidal pore modeling of digital rocks 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. digital rock mesomechanics microscopic deformation spheroidal pore model pore volume compressibility coefficient calculation method QUAN, Zihan verfasserin aut HOU, Yanan verfasserin aut CHENG, Haoran verfasserin aut Enthalten in Petroleum Exploration and Development [Erscheinungsort nicht ermittelbar] : KeAi Communications Co., Ltd., 0000 47, Seite 603-612 Online-Ressource (DE-627)1760627542 (DE-600)3071667-6 1876-3804 nnns volume:47 pages:603-612 GBV_USEFLAG_U SYSFLAG_U GBV_ELV AR 47 603-612 |
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10.1016/S1876-3804(20)60077-5 doi (DE-627)ELV00432241X (ELSEVIER)S1876-3804(20)60077-5 DE-627 ger DE-627 rda eng SUI, Weibo verfasserin aut Estimating pore volume compressibility by spheroidal pore modeling of digital rocks 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. digital rock mesomechanics microscopic deformation spheroidal pore model pore volume compressibility coefficient calculation method QUAN, Zihan verfasserin aut HOU, Yanan verfasserin aut CHENG, Haoran verfasserin aut Enthalten in Petroleum Exploration and Development [Erscheinungsort nicht ermittelbar] : KeAi Communications Co., Ltd., 0000 47, Seite 603-612 Online-Ressource (DE-627)1760627542 (DE-600)3071667-6 1876-3804 nnns volume:47 pages:603-612 GBV_USEFLAG_U SYSFLAG_U GBV_ELV AR 47 603-612 |
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Estimating pore volume compressibility by spheroidal pore modeling of digital rocks |
| abstract |
Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. |
| abstractGer |
Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. |
| abstract_unstemmed |
Abstract: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical theory. The constitutive relationship of different types of pore microstructure deformation was studied with Eshelby equivalent medium theory, and the effects of pore microstructure on pore volume compressibility under elastic deformation conditions of single and multiple pores of a single type and mixed types of pores were investigated. The results showed that the pore volume compressibility coefficient of digital core is closely related with porosity, pore aspect ratio and volumetric proportions of different types of pores. (1) The compressibility coefficient of prolate ellipsoidal pore is positively correlated with the pore aspect ratio, while that of oblate ellipsoidal pore is negatively correlated with the pore aspect ratio. (2) At the same mean value of pore aspect ratio satisfying Gaussian distribution, the more concentrated the range of pore aspect ratio, the higher the compressibility coefficient of both prolate and oblate ellipsoidal pores will be, and the larger the deformation under the same stress condition. (3) The pore compressibility coefficient increases with porosity. (4) At a constant porosity value, the higher the proportion of oblate ellipsoidal and spherical pores in the rock, the more easier for the rock to deform, and the higher the compressibility coefficient of the rock is, while the higher the proportion of prolate ellipsoidal pores in the rock, the more difficult it is for rock to deform, and the lower the compressibility coefficient of the rock is. By calculating pore compressibility coefficient of ten classical digital rock samples, the presented analytical elliptical-pore model based on real pore structure of digital rocks can be applied to calculation of pore volume compressibility coefficient of digital rock sample. |
| collection_details |
GBV_USEFLAG_U SYSFLAG_U GBV_ELV |
| title_short |
Estimating pore volume compressibility by spheroidal pore modeling of digital rocks |
| remote_bool |
true |
| author2 |
QUAN, Zihan HOU, Yanan CHENG, Haoran |
| author2Str |
QUAN, Zihan HOU, Yanan CHENG, Haoran |
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1760627542 |
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c |
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false |
| hochschulschrift_bool |
false |
| doi_str |
10.1016/S1876-3804(20)60077-5 |
| up_date |
2024-07-06T22:36:15.510Z |
| _version_ |
1803870929431822336 |
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7.4013834 |