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:
Apr. 21, 1987
Filed:
Jul. 25, 1985
Marten Haukjem, Hovik, NO;
Olav Lindtjorn, Hovik, NO;
Geco Well Services A.S., Hovik, NO;
Abstract
A device for use in borehole-seismic measurements at sea whereby seismic energy sources (7) are suspended below the surface (D) and connected to a handling line (2) which is operated by a crane arrangement on a vessel. By suspension of a minimum of two seismic energy sources (7) from a stand (3) at a distance from mutually separated floats (1) rotatably connected on horizontal axes (9) to the stand, seismic energy sources (7) can be placed and maintained at a constant depth below the surface, whereby several seismic sources (7) can be used simultaneously. The stand (3) is equipped in its central area with a guide (4) for the handling line (2), which is divided at the end connected to the respective energy sources' (7) suspension lines (8), which simplifies the positioning of the device.