METHOD FOR SEISMIC MONITORING OF AN UNDERGROUND ZONE BY SIMULTANEOUS USE OF SEVERAL VIBROSEISMIC SOURCES

摘要

method and system for seismic monitoring of underground area (1).with the simultaneous use of several seismic vibrators. thethe system comprises for example several local units (lu) each consisting ofa vibrator (5), an antenna (2) sensors, a local unitthe acquisition and processing (6), and a central processing unit (8) controlat the same time, the different timing to drive vibrators inorthogonal signals, local units (6) being adapted byspecial treatment to isolate and reconstruct the seismograms.corresponding to the contributions of the various vibrators. applications to themonitoring of a hydrocarbon reservoir in the course of production, or acontainer used for the storage of gas, for example.