Method for seismic monitoring of an underground zone by simultaneous use of sererval vibroseismic sources
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United States of America Patent
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-
Mar 30, 2004
Grant Date -
Dec 19, 2002
app pub date -
Oct 15, 2001
filing date -
Feb 14, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Method and system intended for seismic monitoring of an underground zone (1), comprising simultaneously using several seismic vibrators. The system comprises for example several local units (LU) comprising each a vibrator (5), a seismic pickup antenna (2), a local acquisition and processing unit (6), and a central control and synchronization unit (8) for simultaneously controlling the various vibrators by means of orthogonal signals, local units (6) being suited, by means of particular; processing, to isolate and to reconstitute the seismograms corresponding to the contributions of the various vibrators. Applications: monitoring of a hydrocarbon reservoir during production or of a reservoir used for gas storage for example.
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