The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2005
Filed:
Aug. 18, 2003
Rénate Bary, Rueil Malmaison, FR;
Patrick Meynier, Chatou, FR;
Rénate Bary, Rueil Malmaison, FR;
Patrick Meynier, Chatou, FR;
Institut Francais du Petrole, Rueil-Malmaison Cedex, FR;
Abstract
A method and device for seismic exploration of a subsea geologic formation by pickups set on the sea bottom and intermittently connectable to active data acquisition stations () brought nearby. Permanent passive reception stations () comprising a heavy pedestal provided with housings for seismic pickups (geophones (), hydrophone () which receive acoustic or seismic signals from the underlying formation are arranged at the bottom of the water body. When collection sessions for the signals received by the pickups are scheduled, mobile active acquisition stations () connected to permanent passive reception stations () are positioned at the bottom of the water body. The signals picked up are then recorded, for the time required to carry out at least one session of acquisition and recording of the acoustic or seismic signals received by the passive stations in response to the emission of seismic waves by one or more seismic sources. The mobile active acquisition stations () are thereafter recovered at the surface and the records acquired by each one are transferred to a central collection laboratory.