Method and node deployer for seismic surveys

Abstract

The invention relates to a method for seismic survey by autonomous seismic nodes () at a sea floor (), comprising: —attaching the seismic nodes () to a rope (); —loading the rope () with the seismic nodes into a node deployer (); —lowering the node deployer () into the sea (); —towing the node deployer () above the sea floor (); —deploying the rope () with the seismic nodes () at the sea floor (); —collecting seismic data by the seismic nodes (); —retrieving the rope () with the seismic nodes () from the sea floor (), and —unloading seismic data from the seismic nodes (). The invention also relates to a node deployer () for deploying a rope () with seismic nodes () at the sea floor (), comprising a magazine () for the rope () with the seismic nodes ().