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1. WO1996002856 - TOWING APPARATUS

Publication Number WO/1996/002856
Publication Date 01.02.1996
International Application No. PCT/NO1995/000112
International Filing Date 26.06.1995
Chapter 2 Demand Filed 12.02.1996
IPC
B63B 21/66 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
21Tying-up; Shifting, towing, or pushing equipment; Anchoring
56Towing or pushing equipment
66Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
G01V 1/38 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
CPC
B63B 21/66
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
21Tying-up; Shifting, towing, or pushing equipment; Anchoring
56Towing or pushing equipment
66Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
G01V 1/3826
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
3817Positioning of seismic devices
3826dynamic steering, e.g. by paravanes or birds
Applicants
  • PETROLEUM GEO-SERVICES A/S [NO/NO]; Strandveien 5 E N-1324 Lysaker, NO (AllExceptUS)
  • KUCHE, Hans-Walter [DE/DE]; DE (UsOnly)
Inventors
  • KUCHE, Hans-Walter; DE
Agents
  • LARSEN, Rolf, Chr., B.; ABC-Patent, Siviling. Rolf Chr. B. Larsen a.s Brynsveien 5 N-0667 Oslo, NO
Priority Data
94262313.07.1994NO
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TOWING APPARATUS
(FR) APPAREIL DE REMORQUAGE
Abstract
(EN)
Apparatus for towing a surface buoy or float, in particular a reference position buoy (1), from a marine seismic streamer (4) being adapted during operation to be immersed in the sea. The towing takes place by a means of a length of cable or the like (5A, 5B) being attached to a section of the streamer and to the surface buoy respectively. At an intermediate portion of the length of cable (5A, 5B) there is provided a weight or deflector device (2) being adapted during towing to impose an angular deviation of the length of cable so that the direction thereof downwards (5A) and upwards (5B) from the weight or deflector device (2), forms a mutual angle (Vb) differing significantly from 180°. The point of attachment (3) at the streamer is located at an active section (4) thereof.
(FR)
Appareil pour le remorquage d'un flotteur de surface et notamment d'un flotteur de position de référence (1), associé à une flûte sismique marine (4) adaptée pour être immergée dans la mer au cours des opérations. Le remorquage s'effectue à l'aide d'un câble ou analogue (5A, 5B) relié à la fois à une partie de la flûte et au flotteur de surface. Une partie intermédiaire du câble (5A, 5B) comporte un poids ou dispositif déflecteur (2) adapté pour imposer au câble, pendant le remorquage, un écart angulaire tel que les directions dans lesquelles s'étend le câble en dessous (5A) et en dessus (5B) du poids ou dispositif déflecteur (2) forment entre elles un angle (Vb) sensiblement différent de 180°. Le point de fixation (3) à la flûte se situe au niveau d'une section active (4) de celle-ci.
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