Permanent seismic source
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United States of America Patent
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Nov 26, 2013
Grant Date -
Sep 30, 2010
app pub date -
Nov 6, 2008
filing date -
Nov 12, 2007
priority date (Note) -
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Abstract
The present invention relates to a system for emitting seismic waves in an underground formation traversed by a well comprising a casing (10). The system comprises a casing seal (1) allowing passage of a magnetic field, an active part generating seismic waves, made up of magnetic-field active elements (4) and arranged outside the casing seal, and a mobile magnetic field induction source (8) arranged inside the casing seal. The invention also relates to a method implementing the seismic wave emission system.
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