Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models
Seismoelectric and seismomagnetic fields generated by acoustic waves in fluid-saturated fractured borehole models are experimentally investigated with an electrode and a Halleffect sensor. In a borehole with a horizontal fracture, the Stoneley and flexural waves induce seismoelectric and seismomagn...
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| Other Authors: | |
| Format: | Technical Report |
| Published: |
Massachusetts Institute of Technology. Earth Resources Laboratory
2012
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| Online Access: | http://hdl.handle.net/1721.1/75423 |
| _version_ | 1811073326400929792 |
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| author | Zhu, Zhenya Toksoz, M. Nafi |
| author2 | Massachusetts Institute of Technology. Earth Resources Laboratory |
| author_facet | Massachusetts Institute of Technology. Earth Resources Laboratory Zhu, Zhenya Toksoz, M. Nafi |
| author_sort | Zhu, Zhenya |
| collection | MIT |
| description | Seismoelectric and seismomagnetic fields generated by acoustic waves in fluid-saturated
fractured borehole models are experimentally investigated with an electrode and a Halleffect sensor. In a borehole with a horizontal fracture, the Stoneley and flexural waves induce seismoelectric and seismomagnetic fields on the borehole wall and an electromagnetic wave propagating with light speed at the horizontal fracture. In a borehole with a vertical fracture, the acoustic field generated by a monopole or dipole source is similar to that in a borehole without a vertical fracture. However, the acoustic wave propagating along the vertical fracture induces seismoelectric and seismomagnetic fields, whose apparent velocities are equal to that. of a Stoneley wave. Experimental results show that two different kinds of electric and magnetic fields are generated by acoustic waves in borehole models with horizontal and/or vertical fractures. One is an electromagnetic wave propagating with light speed. The second is a stationary or localized seismoelectric and seismomagnetic field. Seismoelectric and seismomagnetic measurements might be a new logging technique for exploring fractures in a borehole. |
| first_indexed | 2024-09-23T09:31:19Z |
| format | Technical Report |
| id | mit-1721.1/75423 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:31:19Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology. Earth Resources Laboratory |
| record_format | dspace |
| spelling | mit-1721.1/754232019-04-12T20:32:18Z Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models Zhu, Zhenya Toksoz, M. Nafi Massachusetts Institute of Technology. Earth Resources Laboratory Zhu, Zhenya Toksoz, M. Nafi Seismoelectric and seismomagnetic fields generated by acoustic waves in fluid-saturated fractured borehole models are experimentally investigated with an electrode and a Halleffect sensor. In a borehole with a horizontal fracture, the Stoneley and flexural waves induce seismoelectric and seismomagnetic fields on the borehole wall and an electromagnetic wave propagating with light speed at the horizontal fracture. In a borehole with a vertical fracture, the acoustic field generated by a monopole or dipole source is similar to that in a borehole without a vertical fracture. However, the acoustic wave propagating along the vertical fracture induces seismoelectric and seismomagnetic fields, whose apparent velocities are equal to that. of a Stoneley wave. Experimental results show that two different kinds of electric and magnetic fields are generated by acoustic waves in borehole models with horizontal and/or vertical fractures. One is an electromagnetic wave propagating with light speed. The second is a stationary or localized seismoelectric and seismomagnetic field. Seismoelectric and seismomagnetic measurements might be a new logging technique for exploring fractures in a borehole. Massachusetts Institute of Technology. Borehole Acoustics and Logging Consortium Massachusetts Institute of Technology. Earth Resources Laboratory. Reservoir Delineation Consortium 2012-12-12T18:27:31Z 2012-12-12T18:27:31Z 1999 Technical Report http://hdl.handle.net/1721.1/75423 Earth Resources Laboratory Industry Consortia Annual Report;1999-09 application/pdf Massachusetts Institute of Technology. Earth Resources Laboratory |
| spellingShingle | Zhu, Zhenya Toksoz, M. Nafi Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models |
| title | Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models |
| title_full | Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models |
| title_fullStr | Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models |
| title_full_unstemmed | Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models |
| title_short | Seismoelectric And Seismomagnetic Measurements In Fractured Borehole Models |
| title_sort | seismoelectric and seismomagnetic measurements in fractured borehole models |
| url | http://hdl.handle.net/1721.1/75423 |
| work_keys_str_mv | AT zhuzhenya seismoelectricandseismomagneticmeasurementsinfracturedboreholemodels AT toksozmnafi seismoelectricandseismomagneticmeasurementsinfracturedboreholemodels |