SEISMIC ATTENUATION IN ARTIFICIAL GLASS CRACKS - PHYSICAL AND PHYSICOCHEMICAL EFFECTS OF FLUIDS

Authors
MOERIG R WAITE WF BOYD OS GETTING IC SPETZLER HA
Citation
R. Moerig et al., SEISMIC ATTENUATION IN ARTIFICIAL GLASS CRACKS - PHYSICAL AND PHYSICOCHEMICAL EFFECTS OF FLUIDS, Geophysical research letters, 23(16), 1996, pp. 2053-2056
Citations number
22
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Geophysical research letters → ACNP
ISSN journal
00948276
Volume
23
Issue
16
Year of publication
1996
Pages
2053 - 2056
Database
ISI
SICI code
0094-8276(1996)23:16<2053:SAIAGC>2.0.ZU;2-K
Abstract
Attenuation and stiffness of artificial, fluid containing cracks are m easured from 3 mHz to 10 Hz. The cracks are wedge-shaped; made from gl ass microscope slides. To explain the frequency dependence of both the attenuation and the stiffness (akin to a modulus), we need to appeal to well known fluid flow mechanisms and to the physicochemical interac tion between the fluid and crack surface. By altering the wettability of the crack surfaces, surfactants change the mobility of water and th ereby change the frequency dependence of the fluid flow effects by sev eral orders of magnitude.