Patent · US Expired

Marine seismic streamer with a device for damping oscillations

US5404340A · kind A · utility

4Cited by

8References

13Claims

0Family size

Assignee

Prakla-Seismos GmbH · DE

Inventors

Helmut Weichart · Hannover, DE
Manfred Technau · Laatzen, DE
Andreas Laake · Irishtown, GB

Key dates

Filing date	Mar 15, 1993
Grant date	Apr 4, 1995
Priority date	—
Expiry date	Mar 15, 2013

Classification

Technology area (CPC G)Physics
CPC primaryG01V1/201
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a marine-seismic streamer having a liquid-filled tube (4) in which there are arranged, in the longitudinal direction, hauling cables and flow-obstructing devices including shaped pieces (2) which are spaced apart in the longitudinal direction for dividing the streamer into sections, and hydrophones (5). The shaped pieces (2) are of cylindrical construction with an outside diameter smaller than the inside diameter of the tube (4) such that an annular gap (9) is formed between the tube (4) and each shaped piece (2). The shaped pieces (2) have at least one annular seal (10), the outer diameter of the annular seal (10) corresponding to the inside diameter of the tube (4).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.