TENSILE STRESSES AROUND BOREHOLES DUE TO TRANSIENT FLUID-FLOW

Authors
CHAN DYC HUGHES BD PATERSON L
Citation
Dyc. Chan et al., TENSILE STRESSES AROUND BOREHOLES DUE TO TRANSIENT FLUID-FLOW, International journal for numerical and analytical methods in geomechanics, 17(9), 1993, pp. 659-667
Citations number
15
Categorie Soggetti
Geosciences, Interdisciplinary","Engineering, Civil
Journal title
International journal for numerical and analytical methods in geomechanics → ACNP
ISSN journal
03639061
Volume
17
Issue
9
Year of publication
1993
Pages
659 - 667
Database
ISI
SICI code
0363-9061(1993)17:9<659:TSABDT>2.0.ZU;2-E
Abstract
We present solutions for the effective stress induced by gas flow thro ugh a porous solid into a borehole resulting from sudden pressure redu ction. Tensile effective stress that exceeds the strength of the solid will lead to borehole failure. This has applications to the intention al creation of cavities, relevant to the efficient recovery of coalbed methane, and the avoidance of borehole stability problems in conventi onal gas production.