Towed solid fiber streamer research on acoustic property

Towed seismic exploration is an important way to detect the geological structure of the seabed. The traditional application of the towing streamer in the marine seismic exploration is the liquid streamer. Because of the easy deformation of the cross section, the vibrations of the controller and mechanical towing equipment are transmitted to the hydrophone through the axial extensional wave. Solid streamer can reduce the flow noise and the influence of mechanical vibration, so it can greatly expand the operational weather window. In addition, compared with the present applied liquid fiber towed streamer, the solid fiber streamer does not have oil leakage problems, so its a more environmental friendly choice. Three kinds of fiber optic scalar hydrophone streamers have being made. They were filled with oil, gel and polyurethane. The sensitivity of fiber optic hydrophones were measured by standing wave tube method before and after filled. The acoustic properties of solid streamer are analyzed by means of comparison. The experimental results show that the solid fiber optic hydrophone streamer is feasible.