Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples
Streaming potential across a porous medium is induced by a fluid flow due to an electric double layer between a solid and a fluid. When an acoustic wave propagates through a porous medium, the wave pressure generates a relative movement between the solid and the fluid. The moving charge in the fl...
| Main Authors: | , , |
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| Format: | Technical Report |
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Massachusetts Institute of Technology. Earth Resources Laboratory
2012
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| Online Access: | http://hdl.handle.net/1721.1/68568 |
| _version_ | 1811072753272356864 |
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| author | Zhu, Zhenya Toksoz, M. Nafi Zhan, Xin |
| author2 | Massachusetts Institute of Technology. Earth Resources Laboratory |
| author_facet | Massachusetts Institute of Technology. Earth Resources Laboratory Zhu, Zhenya Toksoz, M. Nafi Zhan, Xin |
| author_sort | Zhu, Zhenya |
| collection | MIT |
| description | Streaming potential across a porous medium is induced by a fluid flow due to an electric
double layer between a solid and a fluid. When an acoustic wave propagates through a
porous medium, the wave pressure generates a relative movement between the solid and
the fluid. The moving charge in the fluid induces an electric field due to the
seismoelectric conversion. In order to investigate the streaming potential and the
seismoelectric conversion in the same rock sample, we conduct quantitative
measurements with cylindrical and plate samples of Berea sandstone 500 saturated by
NaCl solutions with different conductivities. We measure the electric voltage (streaming
potential) across a cylinder sample in solutions with different conductivities and under
different pressures. In a solution container, we measure the seismoelectric signals
induced by acoustic waves at different frequencies and solution conductivities.
We calculate the quantitative coupling coefficients of the seismoelectric conversion at
DC and high frequencies with samples saturated by solutions with different
conductivities. According to the streaming potentials, we calculate the theoretical
coupling coefficients at the DC and high frequency range. The experimental and
theoretical results are compared quantitatively and their differences are discussed. |
| first_indexed | 2024-09-23T09:11:47Z |
| format | Technical Report |
| id | mit-1721.1/68568 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:11:47Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology. Earth Resources Laboratory |
| record_format | dspace |
| spelling | mit-1721.1/685682019-04-10T10:34:11Z Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples Zhu, Zhenya Toksoz, M. Nafi Zhan, Xin Massachusetts Institute of Technology. Earth Resources Laboratory Zhu, Zhenya Toksoz, M. Nafi Zhan, Xin Seismoelectric Streaming potential across a porous medium is induced by a fluid flow due to an electric double layer between a solid and a fluid. When an acoustic wave propagates through a porous medium, the wave pressure generates a relative movement between the solid and the fluid. The moving charge in the fluid induces an electric field due to the seismoelectric conversion. In order to investigate the streaming potential and the seismoelectric conversion in the same rock sample, we conduct quantitative measurements with cylindrical and plate samples of Berea sandstone 500 saturated by NaCl solutions with different conductivities. We measure the electric voltage (streaming potential) across a cylinder sample in solutions with different conductivities and under different pressures. In a solution container, we measure the seismoelectric signals induced by acoustic waves at different frequencies and solution conductivities. We calculate the quantitative coupling coefficients of the seismoelectric conversion at DC and high frequencies with samples saturated by solutions with different conductivities. According to the streaming potentials, we calculate the theoretical coupling coefficients at the DC and high frequency range. The experimental and theoretical results are compared quantitatively and their differences are discussed. Massachusetts Institute of Technology. Earth Resources Laboratory 2012-01-13T18:28:43Z 2012-01-13T18:28:43Z 2009 Technical Report http://hdl.handle.net/1721.1/68568 Earth Resources Laboratory Industry Consortia Annual Report;2009-10 application/pdf Massachusetts Institute of Technology. Earth Resources Laboratory |
| spellingShingle | Seismoelectric Zhu, Zhenya Toksoz, M. Nafi Zhan, Xin Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| title | Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| title_full | Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| title_fullStr | Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| title_full_unstemmed | Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| title_short | Experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| title_sort | experimental studies of streaming potential and high frequency seismoelectric conversion in porous samples |
| topic | Seismoelectric |
| url | http://hdl.handle.net/1721.1/68568 |
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