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Streamer Components

Cortland manufactures low-stretch, high-strength, high-stiffness and long-life strength members for seismic exploration offshore. Cortland armoured tow cables are engineered to deliver high tow strength with minimum cable diameter and minimum drag. We don't supply standard products. We custom-build lightweight, low footprint streamer solutions to suit your individual needs. Leading seismic exploration companies trust Cortland to supply streamer strength members that meet their exacting standards.

Streamer Strength Members
Streamer Strength Members

Streamers are the key element in any seismic data acquisition system. Cortland uses our own low-stretch, high-strength, high-stiffness and long-life strength members to offer the ultimate tensile strength and modulus.

The low stretch, lightweight solution

  • ​High strength
  • Low elongation
  • Long lengths
  • Lightweight
  • Small diameter
Streamer Components

We have experience designing and providing strength members; then, using our EM cable experience and knowledge, we can also provide solid Streamer Components.

Streamer cores are made using the most advanced synthetic fibres for low stretch and are available in long lengths. They provide a robust yet lightweight solution with a small diameter. High strength wire or synthetic reinforcement layers optimise strength to weight ratio for easier handling and towing plus minimised drag.

Our streamer cable components are completely custom-built to incorporate all the power conductors and electrical or optical components necessary for hydrophones and telemetry.

  • High strength
  • Low elongation
  • Long lengths
  • Lightweight
  • Small diameter
Tail Buoy Cables
Tail Buoy Cables

By its nature, the tail buoy can induce unwanted noise and drag – especially with the latest broadband seismic systems, where it’s amplified by longer towing sections. That’s why Cortland created small diameter tail buoy cables – designed to carry power and communication to the tail buoy assembly, while minimising this problem.

Using our own Hi-Wire design, our Tail Buoy Cables can stand higher cable strains than standard wire types to provide a reliable and quiet signal transfer. The cables excellent stretch characteristics also help to de-couple any tugging from the tail buoy.

Maximum performance, minimum noise and drag

  • ​Small diameter cable to reduce unwanted noise and drag
  • Takes higher cable strains than wired variants
  • Reliable and quiet signal transfer
  • Controlled stretch characteristics minimise tugging from the tail buoy
Lead Ins
Lead Ins

Designed to create minimum noise, Cortland lead-in cables – also known as tow cables – feature high tow strength, minimum cable diameter and minimum drag. Containing single or grouped electrical cores and fibre optics, our designs combine the most compact diameters together with steel wire for the highest strength, smallest diameter, most flexible cable available.

With hundreds of kilometres deployed, Cortland’s ‘skinny’ tow cables have set the global standard. We also offer high quality hair/braided fairing that reduces cable strumming and promotes vortex shedding.

For high tow strength and minimum drag, trust Cortland

  • ​Different combinations of power, signal and optic layout/sizing available
  • Proprietary cold drawn armour process
  • Pre forming of wires
  • Steel or plastic tube, gel filled, for optics and signals
  • Highest strength steel wire while maintaining ductility