Advantages of wet work for near-surface seismic reflection
By: R. D. Miller, R.D. Markiewicz, T.R. Rademacker, R. Hopkins, R.J. Rawcliffe, and J. Paquin
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Abstract
Benefits of shallow water settings (0.1 to 0.5 m) are pronounced on shallow, high-resolution seismic reflection images and, for examples discussed here, range from an order of magnitude increased signal-to-noise ratio to resolution potential elevated by more than 8 times. Overall data quality of high-resolution seismic reflection data at three sites notorious for poor near-surface reflection returns was improved by coupling the source and/or receivers to a well sorted and fully saturated surface. Half-period trace-to-trace static offsets evident in reflections from receivers planted into a creek bank were eliminated by moving the geophones to the base of a shallow creek at the toe of the bank. Reflections from a dipping bedrock were recorded with a dominant frequency approaching 1 KHz from hydrophones in 0.5 m of water at the toe of a dam using a hammer impact source. A tamper impacted by a dead blow hammer in a shallow (10-20 cm) deep creek produced reflections with a dominant frequency over 400 Hz at depths as shallow as 6 ms. ?? 2007 Society of Exploration Geophysicists.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Advantages of wet work for near-surface seismic reflection |
| DOI | 10.1190/1.2792615 |
| Volume | 26 |
| Issue | 1 |
| Year Published | 2007 |
| Language | English |
| Larger Work Title | SEG Technical Program Expanded Abstracts |
| First page | 1147 |
| Last page | 1151 |
| Google Analytic Metrics | Metrics page |