Estimating diffusion-capacity parameters of a coal bed using the gas pressure measured in a hole and the solution of an inverse problem

L. A. Nazarova; L. A. Nazarov; A. L. Karchevsky; M. Vandamme

doi:10.1134/S1990478914020136

Estimating diffusion-capacity parameters of a coal bed using the gas pressure measured in a hole and the solution of an inverse problem

L. A. Nazarova
, L. A. Nazarov
, A. L. Karchevsky
, M. Vandamme

Russian Academy of Sciences
Sobolev Institute of Mathematics of the Siberian Branch of the Russian Academy of Sciences
Université Paris-Est

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

Abstract

A geomechanical model is proposed for gas emission from a coal bed with block structure. Some coefficient inverse problem is formulated for finding the initial gas content as well as the diffusion and mass transfer coefficients from the measured pressure in a well. The solvability of this problem is tested, and the additional data on the gas-kinetic characteristics of the coal bed are shown to be necessary for the inverse problem to have a unique solution.

Original language	English
Pages (from-to)	267-273
Number of pages	7
Journal	Journal of Applied and Industrial Mathematics
Volume	8
Issue number	2
DOIs	https://doi.org/10.1134/S1990478914020136
Publication status	Published - 1 Jan 2014
Externally published	Yes

Keywords

coal bed
degassing
diffusion and mass transfer coefficients
gas content
geomechanics model
inverse problem
objective function

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10.1134/S1990478914020136

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abstract = "A geomechanical model is proposed for gas emission from a coal bed with block structure. Some coefficient inverse problem is formulated for finding the initial gas content as well as the diffusion and mass transfer coefficients from the measured pressure in a well. The solvability of this problem is tested, and the additional data on the gas-kinetic characteristics of the coal bed are shown to be necessary for the inverse problem to have a unique solution.",

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AU - Karchevsky, A. L.

AU - Vandamme, M.

PY - 2014/1/1

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N2 - A geomechanical model is proposed for gas emission from a coal bed with block structure. Some coefficient inverse problem is formulated for finding the initial gas content as well as the diffusion and mass transfer coefficients from the measured pressure in a well. The solvability of this problem is tested, and the additional data on the gas-kinetic characteristics of the coal bed are shown to be necessary for the inverse problem to have a unique solution.

AB - A geomechanical model is proposed for gas emission from a coal bed with block structure. Some coefficient inverse problem is formulated for finding the initial gas content as well as the diffusion and mass transfer coefficients from the measured pressure in a well. The solvability of this problem is tested, and the additional data on the gas-kinetic characteristics of the coal bed are shown to be necessary for the inverse problem to have a unique solution.

KW - coal bed

KW - degassing

KW - diffusion and mass transfer coefficients

KW - gas content

KW - geomechanics model

KW - inverse problem

KW - objective function

UR - https://www.scopus.com/pages/publications/84902186736

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JO - Journal of Applied and Industrial Mathematics

JF - Journal of Applied and Industrial Mathematics

IS - 2

ER -

Estimating diffusion-capacity parameters of a coal bed using the gas pressure measured in a hole and the solution of an inverse problem

Abstract

Keywords

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