Standard

Direct and inverse problems of gas emission and the sorptive deformation of coal beds. / Nazarova, L. A.; Nazarov, L. A.; Vandamme, M. et al.

In: Journal of Applied and Industrial Mathematics, Vol. 11, No. 2, 01.04.2017, p. 236-243.

Research output: Contribution to journal › Article › peer-review

Harvard

Nazarova, LA, Nazarov, LA, Vandamme, M & Pereira, JM 2017, 'Direct and inverse problems of gas emission and the sorptive deformation of coal beds', Journal of Applied and Industrial Mathematics, vol. 11, no. 2, pp. 236-243. https://doi.org/10.1134/S1990478917020090

APA

Nazarova, L. A., Nazarov, L. A., Vandamme, M., & Pereira, J. M. (2017). Direct and inverse problems of gas emission and the sorptive deformation of coal beds. Journal of Applied and Industrial Mathematics, 11(2), 236-243. https://doi.org/10.1134/S1990478917020090

Vancouver

Nazarova LA, Nazarov LA, Vandamme M, Pereira JM. Direct and inverse problems of gas emission and the sorptive deformation of coal beds. Journal of Applied and Industrial Mathematics. 2017 Apr 1;11(2):236-243. doi: 10.1134/S1990478917020090

Author

Nazarova, L. A. ; Nazarov, L. A. ; Vandamme, M. et al. / Direct and inverse problems of gas emission and the sorptive deformation of coal beds. In: Journal of Applied and Industrial Mathematics. 2017 ; Vol. 11, No. 2. pp. 236-243.

BibTeX

@article{cf1338638cf04596a625716032781131,
title = "Direct and inverse problems of gas emission and the sorptive deformation of coal beds",
abstract = "Using the equations of state for fractured-porous media that describe the sorptioninduced deformation of coal, we develop a geomechanical model for radial gas influx to a borehole drilled in a coal bed with the concurrent evolution of stress field in the borehole environment. A numerical-and-analytical method is proposed for solving the corresponding system of equations for poroelastic media. A relation is found between the volume of slack withdrawn in the borehole (when opening up the gas-bearing seams), the sorption-and-storage capacities of coal, the permeability k, and the horizontal component σh of the natural stress field. We demonstrate the solvability of the inverse boundary-coefficient problem of determining k and σh on the basis of pressure in the closed borehole. We substantiate an express-method for estimating the permeability by the measurements of pressure in the borehole operating in the “pressure drop” mode.",
keywords = "borehole, coal bed, filtration, fracture-porousmedium, inverse problem, natural stress, permeability",
author = "Nazarova, {L. A.} and Nazarov, {L. A.} and M. Vandamme and Pereira, {J. M.}",
year = "2017",
month = apr,
day = "1",
doi = "10.1134/S1990478917020090",
language = "English",
volume = "11",
pages = "236--243",
journal = "Journal of Applied and Industrial Mathematics",
issn = "1990-4789",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "2",

}

RIS

TY - JOUR

T1 - Direct and inverse problems of gas emission and the sorptive deformation of coal beds

AU - Nazarova, L. A.

AU - Nazarov, L. A.

AU - Vandamme, M.

AU - Pereira, J. M.

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Using the equations of state for fractured-porous media that describe the sorptioninduced deformation of coal, we develop a geomechanical model for radial gas influx to a borehole drilled in a coal bed with the concurrent evolution of stress field in the borehole environment. A numerical-and-analytical method is proposed for solving the corresponding system of equations for poroelastic media. A relation is found between the volume of slack withdrawn in the borehole (when opening up the gas-bearing seams), the sorption-and-storage capacities of coal, the permeability k, and the horizontal component σh of the natural stress field. We demonstrate the solvability of the inverse boundary-coefficient problem of determining k and σh on the basis of pressure in the closed borehole. We substantiate an express-method for estimating the permeability by the measurements of pressure in the borehole operating in the “pressure drop” mode.

AB - Using the equations of state for fractured-porous media that describe the sorptioninduced deformation of coal, we develop a geomechanical model for radial gas influx to a borehole drilled in a coal bed with the concurrent evolution of stress field in the borehole environment. A numerical-and-analytical method is proposed for solving the corresponding system of equations for poroelastic media. A relation is found between the volume of slack withdrawn in the borehole (when opening up the gas-bearing seams), the sorption-and-storage capacities of coal, the permeability k, and the horizontal component σh of the natural stress field. We demonstrate the solvability of the inverse boundary-coefficient problem of determining k and σh on the basis of pressure in the closed borehole. We substantiate an express-method for estimating the permeability by the measurements of pressure in the borehole operating in the “pressure drop” mode.

KW - borehole

KW - coal bed

KW - filtration

KW - fracture-porousmedium

KW - inverse problem

KW - natural stress

KW - permeability

UR - http://www.scopus.com/inward/record.url?scp=85019723794&partnerID=8YFLogxK

U2 - 10.1134/S1990478917020090

DO - 10.1134/S1990478917020090

M3 - Article

AN - SCOPUS:85019723794

VL - 11

SP - 236

EP - 243

JO - Journal of Applied and Industrial Mathematics

JF - Journal of Applied and Industrial Mathematics

SN - 1990-4789

IS - 2

ER -

ID: 10036769