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:
Dec. 13, 2005
Filed:
Mar. 25, 2003
Eivind W. Berg, Ranheim, NO;
Scott T. Michell, Houston, TX (US);
Nigel P. Purnell, Sugar Land, TX (US);
Graham Openshaw, Houston, TX (US);
Atle H. Fyhn, Jakobsli, NO;
Gerard J. Beaudoin, Houston, TX (US);
Eivind W. Berg, Ranheim, NO;
Scott T. Michell, Houston, TX (US);
Nigel P. Purnell, Sugar Land, TX (US);
Graham Openshaw, Houston, TX (US);
Atle H. Fyhn, Jakobsli, NO;
Gerard J. Beaudoin, Houston, TX (US);
BP Corporation North America Inc., Warrenville, IL (US);
Abstract
A method and apparatus is disclosed for performing a seismic survey below the surface of a body of water and on the seabed. In one embodiment, a plurality of seismic data receivers are removably loaded in a carrier located above the surface of the water and the carrier is lowered into the water and placed at a depth relatively close to the seabed. Each of the receivers has a memory for recording the vibrations of the seabed and has a switch for activating the memory. A ROV is used to unload the receivers from the carrier and to deposit each receiver on the seabed and along a survey line. In one embodiment, the receivers comprise a frame, a pressure vessel for housing the memory and remotely activated controls, and a geophone that is separately planted into the seabed at a relatively short distance from the frame.