Electroseismic investigation of the shallow subsurface: Field measurements and numerical modeling
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Earth Resources Lab.
Recent studies have demonstrated that electroseismic phenomena in porous media have the potential to detect zones of high fluid mobility and fluid chemistry contrasts in the subsurface. However, there have only been a few field studies of these phenomena since they were first observed 60 years ago. None of these studies were able to support observations with an explicit comparison to results of full waveform modeling. In this paper, the authors demonstrate that the electroseismic phenomena in porous media can be observed in the field, explained, and modeled numerically, yielding a good agreement between the field and the synthetic data. The authors first outline the design of the field experiment and describe the procedure used to reduce noise in the electroseismic data. After that, they present and interpret the field data, demonstrating how and where different electroseismic signals originated in the subsurface. Finally, they model the field experiment numerically and demonstrate that the numerical results correctly simulate arrival times, polarity, and amplitude variation with offset behavior of the electroseismic signals measured in the field.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-93ER14322
- OSTI ID:
- 452194
- Journal Information:
- Geophysics, Journal Name: Geophysics Journal Issue: 1 Vol. 62; ISSN GPYSA7; ISSN 0016-8033
- Country of Publication:
- United States
- Language:
- English
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