Fiber optic strain gauge and cable strain monitoring system for marine seismic acquisition systems

摘要

#$%^&*AU2007200493B220120119.pdf#####Abstract A method for operating a marine seismic survey system includes deploying from a seismic vessel at least two lead-in cables each functionally coupled at one end thereof proximate a respective paravane. The lead-in cables have at least one spreader cable functionally coupled between the paravanes. Strain is measured at at least one position along each lead in cable; and a length of each cable is adjusted such that the measured strains are substantially equal.1/4 n 10 19 -12 19 -19 8 8 16 18 20A 18 16 14 20A 24 24 24 20A 14 24 20 20 F 20A 20 20 24 22 22 22 22 22 22 22 22 22 22 22 2 22 22 22 2 22 22 22 22 22 22 1r22 6,-22 FIG. 1