| 摘要 |
The invention relates to a system for generating seismic waves in an underground formation through which extends a well having a casing (10), characterised in that it comprises a casing seal (1) pervious to a magnetic field, an active portion generating seismic waves, made of magnetic-field active members (4) and arranged outside the casing seal, and a mobile magnetic-field induction source (8) provided inside the casing seal. The invention also relates to a method implementing this seismic wave generation system. |
