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Laboratory estimates of normal and shear fracture compliance

Abstract:

Laboratory estimates of the normal (Bn) and shear (Bt) compliance of artificial fractures in samples of Jurassic and Carboniferous limestone under wet and dry conditions are presented. The experiments were performed over a range of confining pressures (from 5 MPa up to 60 MPa), at ultrasonic frequencies in a Triaxial Hoek cell, using the pulse-echo reflection technique. The results of this study confirm that the Bn/Bt ratio of a fracture is dependent on the fluid fill. A value of Bn/ Bto of l...

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Publication status:
Published

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Authors


Sothcott, J More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Journal:
GEOPHYSICAL PROSPECTING
Volume:
56
Issue:
2
Pages:
239-247
Publication date:
2008-03-05
DOI:
EISSN:
1365-2478
ISSN:
0016-8025
URN:
uuid:d7e4d490-1b39-4e41-bb94-a2a18291e244
Source identifiers:
82834
Local pid:
pubs:82834
Language:
English

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