Detection Of Subsurface Fractures And Permeable Zones By The Analysis Of Tube Waves
Author(s)
Beydoun, W. B.; Cheng, C. H.; Toksoz, M. N.
Download1983.10 Beydoun et al.pdf (500.0Kb)
Other Contributors
Massachusetts Institute of Technology. Earth Resources Laboratory
Metadata
Show full item recordAbstract
In Vertical Seismic Profiling tube waves are generated by compressional
waves impinging on subsurface fractures or permeable zones. The amplitude of
tube waves is dependent upon the formation permeability, the length of the
fracture, and on the source frequency. The generation of tube waves is
formulated theoretically and the relative effects of these parameters are
studied individually. Field examples are shown for open fractures in granite.
From tube wave amplitudes normalized to P-wave amplitudes, calculated
permeabilities are on the order of 400 millidarcys.
Date issued
1983Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;1983-10