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:
May. 29, 2007
Filed:
Dec. 21, 2005
Johan Fredrik Näs, Trondheim, NO;
Johan Fredrik Näs, Trondheim, NO;
Seabed Geophysical AS, , NO;
Abstract
Arrangement for use for seismic surveys of geological formations in a seabed, where a plurality of such arrangements, which are provided with sensor units, are placed on the seabed for collecting pressure waves and shear waves reflected from the geological formations. There exist arrangements for transferring seismic data to a surface receiver placed on a vessel, an offshore installation, or an onshore installation. Each sensor unitis held by a carrierand is connected to a cylindrically skirt-shaped structureadapted to be led down into the seabed, and each sensor unitcomprises at least one geophone. The carriercomprises a holderfor the cylindrically skirt-shaped structure, which structureshall penetrate down into the seabed, as this holderis adapted to be moved between a lower position and an upper position, to be able to be mechanically released from the skirt-shaped structure