dorsal/arxiv
View SchemaComparative study of P and S wave amplitudes of acoustic logging through solid formations : contribution to the knowledge of in situ stresses and fractures
| Authors | André Rousseau |
|---|---|
| Categories | |
| ArXiv ID | physics/0507025 |
| URL | https://arxiv.org/abs/physics/0507025 |
Abstract
In order to compare the ratios between the amplitudes of P and S acoustic waves drawn from various boreholes, we have defined a specific wave parameter called magnitude : for each shot, we have added the maximum positive amplitude values and the absolute values of the minimum negative amplitudes of a given wave recorded at different depths. In compact formations, the difference between the logarithms of the magnitudes of S and P waves provides a value that appears to be characteristic of the state of stress of the domain where a borehole is drilled. Accidents between those formations, such as fractures or sedimentary joints can be determined, and breakouts well distinguished.
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"abstract": "In order to compare the ratios between the amplitudes of P and S acoustic\nwaves drawn from various boreholes, we have defined a specific wave parameter\ncalled magnitude : for each shot, we have added the maximum positive amplitude\nvalues and the absolute values of the minimum negative amplitudes of a given\nwave recorded at different depths. In compact formations, the difference\nbetween the logarithms of the magnitudes of S and P waves provides a value that\nappears to be characteristic of the state of stress of the domain where a\nborehole is drilled. Accidents between those formations, such as fractures or\nsedimentary joints can be determined, and breakouts well distinguished.",
"arxiv_id": "physics/0507025",
"authors": [
"Andr\u00e9 Rousseau"
],
"categories": [
"physics.geo-ph"
],
"title": "Comparative study of P and S wave amplitudes of acoustic logging through solid formations : contribution to the knowledge of in situ stresses and fractures",
"url": "https://arxiv.org/abs/physics/0507025"
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