Title:
DEVICE FOR RECEIVING SEISMIC WAVES AND METHOD FOR COUPLING THEM WITH A SOLID ENVIRONMENT
Document Type and Number:
WIPO Patent Application WO2001059482
Kind Code:
A8
Abstract:
The invention concerns a device for receiving seismic waves comprising a hydrophone and/or a geophone and a method for coupling them with a solid environment such as an underground zone. The device comprises at least a hydrophone (2) immersed in a flexible-wall housing (7) filled with liquid (8) which is closed at one end with a sealing plug (9) provided with a sealed duct for a cable (10) connecting the hydrophone with signal acquisition means (E). The housing is arranged in a cavity (6) and closely coupled with the environment (5) substantially by its entire surface, preferably with a material capable of setting such as cement. A geophone can be provided in the same coupling material proximate to the housing (7) containing the hydrophone (2). The invention is useful for prospecting operations or seismic monitoring of an underground formation in particular for discriminating ascending and descending seismic waves.
Inventors:
MEUNIER JULIEN (FR)
Application Number:
PCT/FR2001/000380
Publication Date:
September 19, 2002
Filing Date:
February 09, 2001
Export Citation:
Assignee:
INST FRANCAIS DU PETROLE (FR)
GAZ DE FRANCE (FR)
GEOPHYSIQUE CIE GLE (FR)
MEUNIER JULIEN (FR)
GAZ DE FRANCE (FR)
GEOPHYSIQUE CIE GLE (FR)
MEUNIER JULIEN (FR)
International Classes:
G01H1/00; G01V1/20; G01V1/16; (IPC1-7): G01V1/16
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