Patent · US Active

Electrical power system for towed electromagnetic survey streamers

US8575938B2 · kind B2 · utility

3Cited by

30References

22Claims

0Family size

Assignee

PGS Geophysical AS · NO

Inventors

Kenneth Karlsen · Oslo, NO
Ulf Peter Lindqvist · Stuvsta-Snättringe, SE

Key dates

Filing date	Apr 20, 2010
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Mar 18, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A marine electromagnetic receiver cable includes a plurality of signal processing modules disposed at spaced apart locations along the receiver cable. A power supply line is connected to each of the signal processing modules and to an electric current source. A current regulation device is connected in the power supply line proximate each signal processing module. The current regulation devices are connected such that an amount of current flowing through the power supply line is substantially constant. At least one electromagnetic receiver is functionally coupled to an input of each signal processing module.

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