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Seismic Cables

In demanding environments, such as marine geophysical seismic exploration, Cortland provides the most compact, highest strength, most flexible cables for underwater applications. Cortland's seismic cables can be custom-designed and built to suit the needs of your particular project.

Click here to view our Seismic brochure.

Tow Cables

Cortland offers cables for wide tow multiple streamer data acquisition applications, which demand high tow strength, minimum cable diameter, and minimum weight. Cables consist of a range of single or grouped electrical cores and fibre optics. Our designs offer the most compact electrical and fibre optic assembly diameters and can be offered with either synthetic fibre strength member or steel wire armour packages to achieve the highest strength, smallest flexible cable on the market. These variants can be produced in long continuous lengths.

Customer specific cable and mechanical armour terminations can be provided as part of Cortland’s scope.

Cortland can apply fairings as a solution to the adverse effects of strumming / vibration which can be set up as the cables are towed through the water behind surface vessels. Fairings are generally applied as braid with extensions along two or more axes of the cable formed by weaving a filament yarn about one or more insulated conductors with the yarn serving to anchor the conductors on the cable and extending outwardly to form fairing hairs. Generally the braid material is polyester although other materials and variants can be offered.  Solid fairings or customer free issued fairings can be fitted if required.

Finalized packages include full testing in accordance with industry standards.

Benefits / Features
  • Combination options of power, signal and optic layout / sizing
  • Choice of component configurations including singles, pairs and quads
  • Choice of optical fibres with various MM SM options
  • Special thin wall core insulation optimizing cable OD’s
  • Highest strength steel wire while maintaining ductility
  • Choice of high modulus fibre strength layers saving weight on wire armoured variants
Applications
  • Seismic tow cable assemblies
Streamer Cores

A crucial part of any acquisition system, Cortland’s streamer cores use served strength members to increase their ultimate tensile strength and modulus. Robust and high-strength with low elongation, they are made using the most advanced high modulus synthetic fibers. Available in long lengths, they provide a lightweight solution with a small diameter. The cables can be custom-built to include power conductors, and electrical / optical components for hydrophones and telemetry requirements. 

Benefits / Features
  • High strength
  • Low elongation
  • Long lengths
  • Lightweight
  • Small diameter
Applications
  • Seismic applications
Streamer Strength Members

Cortland manufactures low-stretch, high-strength, high-stiffness and long-life strength members for seismic exploration offshore. 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.  

Airgun Array Deck Cables

Cortland offers separate or combined power and signal deck cables configurations for system compatibility.  A choice of fibre or wire braided layers under an extruded outer sheath of various material options can offer strength and robustness as required.

The assemblies can be fitted with extra tail protection and associated topside splash proof electrical connectors tagged, printed and color coded as required.

Benefits / Features
  • Choice of made to order configurations as long as sensible production lengths are possible (offering full system compatibility)
  • Separate power and signal deck jumper cables to suit system integration
  • Fiber or wire reinforcement / cut protection layers for maximized service life
  • Choice of outersheath materials to suit topside working conditions
  • Wide availability of topside connector types; full integration compatibility
  • Tagging and printing; full identification
Applications
  • Air gun arrays
Ocean Bottom Cables (OBC)

Cortland manufactures a range of Ocean Bottom Cables for continuous deployment and recovery end use. With all the electrical and fiber optic characteristics of a tow cable, these cables are rugged, lightweight and flexible in design. Take out terminations can be supplied for connection to hydrophones and geophone packages, all tested and approved along with our cables to your specific requirements. Whatever your custom cable application, you can rely on Cortland to build it. 

Benefits / Features
  • Combined options of power, signal and optic layout/sizing
  • Choice of component configurations
  • Choice of optical fibres offering
  • Full range of take out configurations available with full integration compatibility
Applications
  • Ocean bottom “life of field” applications
  • Shallow water seismic exploration