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Offshore

Yellow pipes of an oil rig extending into the sea.

An Extreme World Needs Extreme Materials

The flexible tubes used for the transportation of oil and gas are under enormous physical and chemical stress. With Kynar® polyvinylidene fluoride (PVDF) Rilsan® and Rilsan® Fine Powders biosourced polyamides (PA), the Arkema group provides a wide range of solutions to protect them against corrosion, chemical attacks and aging. These high performance polymers are also routinely used for coating pipes and flexible tubes in oil and gas installations. In these conditions, they are subject to extreme pressure and fluid constraints.

Review the Various Offshore Applications of Kynar® PVDF, Rilsan® Resins and Rilsan® Fine Powders

Offshore Seismic Acquisition

Seismic acquisition cables towed by a ship at sea.

Rilsan® Polyamides have truly outstanding qualities for the harsh conditions that seismic acquisition cables operate in. Rilsan® PA11 shows high dimensional stability and creep resistance, as well as tremendous resistance to seawater and strong abrasion resistance. In addition, its compatibility with other materials including fiber optics, extruded foams, and sensitive electronic equipment make it ideal for seismic acquisition applications. 

 

Recommendations for Seismic Acquisition Cables:

  • Flexible Rilsan® PA11 is the recommended solution for most offshore seismic acquisition cables 
  • Other solutions include Rilsan® PA12

Choke & Kill Lines

Red and yellow blow out protector on an offshore Oil Rig.

Rilsan® PA11 and Kynar® PVDF chemical and temperature resistance properties allow for them to be used as liners in the high pressure lines used in offshore choke & kill systems. 

 

For grade information contact an Arkema Technical Representative about PA11 Heat Stabilized Extrusion Grade materials for Choke and Kill line applications. 

Flexible Flowlines

When operating in harsh environments where maintenance can be very expensive, Oil and Gas companies require materials that can hold up to high temperatures and harsh chemicals. Rilsan® PA11 and Kynar® PVDF have a high resistance to hydrocarbons and other blends of gasses/liquids, and retain their dynamic properties while operating at high temperatures for up to 30 years.

 

An extreme world needs extreme materials.

Tensile Modulus vs. Temperature for Various Kynar® Grades

 

Graph showing the tensile Modulus vs. Temperature for various Kynar® Grades.
Multi-layered pipe with steel and Kynar® layers.
Offshore multi-layered pipe with Rilsan® layers. Copyright: Arkema, Studio Quadrimage

Flexible Risers

Flexible Risers are subject to the extreme abuses of the ocean including varying temperatures, shifting tides, and harsh salt water. Rilsan® PA11 and Kynar® PVDF hold up extremely well given their inert nature which creates stability in their physical properties over long periods of time. 

Flexural Creep of a Select Kynar® Homopolymer Resin at High Stresses as a Function of Time + Temperature

 

Flexural Creep of a select Kynar® resin at high stresses as a function of time and temperature.

Umbilicals

Rilsan® PA11 TLO is a special material which provides an ultra-low oligomer solution able to provide stable performance over a long period of time. 

 

The low permeation found in Kynar® PVDF, makes it an extremely useful material for offshore umbilicals. The resistance to multiple chemicals provides ease of process when creating umbilicals designed to be in contact with various fluids. 

Chemical Resistance of Kynar® Homopolymer Resin vs. Other Well-Known Plastics at 93C

 

Kynar® Chemical Resistance Chart versus other well known plastics at 93C.
Cross-section of an offshore umbilical cable with Rilsan® tubes. Copyright: Arkema, Studio Quadrimage

Wire and Cable

Three layer of downhole cable with Rilsan® grades surrounding copper wires.

Kynar Flex® PVDF is an extreme material that can hold up to the demanding conditions that downhole wire & cables are subject to. Its resistance to harsh chemicals and heat make it useable in numerous applications including electrical downhole cable, fiber optic downhole cable and hybrid electric/fiber cable. Its compatibility with the many different types of materials, pressures, and temperatures make it a choice that brings ease of process when manufacturing and installing the cables. 

 

Oil & Gas producers demand a product that can be relied on. With decades of trusted use in oil & gas wells around the world Kynar Flex® PVDF is considered a preferred solution for downhole applications. 

Reinforced Thermoplastic Pipe

Composite pipe 3D depiction.

The light weight and flexibility of reinforced thermoplastic pipes made from Rilsan® PA11 and Kynar® PVDF allow for Oil & Gas customers to deliver the pipes in rolls, which allow for quicker and easier installations. 

 

Key Benefits:

  • Compatibility with aramid fibers 
  • Flexibility 
  • Lightweight 
  • Lower cost installation
  • Resistance to harsh chemicals
  • Resistance to high and low temperatures

Download and View our Oil & Gas Brochures

Offshore oil rig against a setting sun.

Let's Run Together

Our range of materials is constantly growing.  As the market demands higher performance materials we will continue to develop innovative solutions.  Our global team of engineers is eager to work on new developments and design creative solutions for your material needs.  Contact our team today to start your development.

 

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