Mechanics of pore collapse and compaction in weak porous rocks

A. Abdulraheem; J. C. Roegiers; M. Zaman

Mechanics of pore collapse and compaction in weak porous rocks

A. Abdulraheem^*, J. C. Roegiers, M. Zaman

^*Corresponding author for this work

Department of Petroleum Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

The term ″pore collapse″ is used to describe a drastic, irreversible reduction in porosity due to the increase in effective stress on the rock matrix as a consequence of withdrawal of oil and gas. This paper describes an elastoplastic constitutive model that incorporates the phenomenon of pore collapse, and its numerical implementation in a nonlinear finite element (FE) code. Preliminary evaluation of results from the FE simulation indicate that the uniaxial strain conditions, which are predominant in producing reservoir rock strata, can be idealized fairly well by the constitutive model and the numerical simulator. Application of this numerical simulator to a compacting reservoir is currently being pursued and the results will be presented in the future.

Original language	English
Title of host publication	Rock Mechanics Proceedings of the 33rd U.S. Symposium
Publisher	Publ by A.A. Balkema
Pages	233
Number of pages	1
ISBN (Print)	9054100451
State	Published - 1991
Event	Proceedings of the 1992 MRS Fall Meeting: Symposium U, Solid State Ionics - Santa Fe, NM, USA Duration: 3 Jun 1992 → 5 Jun 1992

Publication series

Name	U.S. Symposium on Rock Mechanics

Conference

Conference	Proceedings of the 1992 MRS Fall Meeting: Symposium U, Solid State Ionics
City	Santa Fe, NM, USA
Period	3/06/92 → 5/06/92

ASJC Scopus subject areas

General Engineering

Cite this

@inproceedings{754e0a6fa6754e7697f3a6ecf9013ff7,

title = "Mechanics of pore collapse and compaction in weak porous rocks",

abstract = "The term ″pore collapse″ is used to describe a drastic, irreversible reduction in porosity due to the increase in effective stress on the rock matrix as a consequence of withdrawal of oil and gas. This paper describes an elastoplastic constitutive model that incorporates the phenomenon of pore collapse, and its numerical implementation in a nonlinear finite element (FE) code. Preliminary evaluation of results from the FE simulation indicate that the uniaxial strain conditions, which are predominant in producing reservoir rock strata, can be idealized fairly well by the constitutive model and the numerical simulator. Application of this numerical simulator to a compacting reservoir is currently being pursued and the results will be presented in the future.",

author = "A. Abdulraheem and Roegiers, \{J. C.\} and M. Zaman",

year = "1991",

language = "English",

isbn = "9054100451",

series = "U.S. Symposium on Rock Mechanics",

publisher = "Publ by A.A. Balkema",

pages = "233",

booktitle = "Rock Mechanics Proceedings of the 33rd U.S. Symposium",

note = "Proceedings of the 1992 MRS Fall Meeting: Symposium U, Solid State Ionics ; Conference date: 03-06-1992 Through 05-06-1992",

}

TY - GEN

T1 - Mechanics of pore collapse and compaction in weak porous rocks

AU - Abdulraheem, A.

AU - Roegiers, J. C.

AU - Zaman, M.

PY - 1991

Y1 - 1991

N2 - The term ″pore collapse″ is used to describe a drastic, irreversible reduction in porosity due to the increase in effective stress on the rock matrix as a consequence of withdrawal of oil and gas. This paper describes an elastoplastic constitutive model that incorporates the phenomenon of pore collapse, and its numerical implementation in a nonlinear finite element (FE) code. Preliminary evaluation of results from the FE simulation indicate that the uniaxial strain conditions, which are predominant in producing reservoir rock strata, can be idealized fairly well by the constitutive model and the numerical simulator. Application of this numerical simulator to a compacting reservoir is currently being pursued and the results will be presented in the future.

AB - The term ″pore collapse″ is used to describe a drastic, irreversible reduction in porosity due to the increase in effective stress on the rock matrix as a consequence of withdrawal of oil and gas. This paper describes an elastoplastic constitutive model that incorporates the phenomenon of pore collapse, and its numerical implementation in a nonlinear finite element (FE) code. Preliminary evaluation of results from the FE simulation indicate that the uniaxial strain conditions, which are predominant in producing reservoir rock strata, can be idealized fairly well by the constitutive model and the numerical simulator. Application of this numerical simulator to a compacting reservoir is currently being pursued and the results will be presented in the future.

UR - https://www.scopus.com/pages/publications/0026303940

M3 - Conference contribution

AN - SCOPUS:0026303940

SN - 9054100451

T3 - U.S. Symposium on Rock Mechanics

SP - 233

BT - Rock Mechanics Proceedings of the 33rd U.S. Symposium

PB - Publ by A.A. Balkema

T2 - Proceedings of the 1992 MRS Fall Meeting: Symposium U, Solid State Ionics

Y2 - 3 June 1992 through 5 June 1992

ER -

Mechanics of pore collapse and compaction in weak porous rocks

Abstract

Publication series

Conference

ASJC Scopus subject areas

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