Cast Polyurethane Parts for OIL & GAS
The oil and gas is well known for extreme operating conditions (high pressure, strong corrosion, high wear, and a wide temperature range), imposing strict requirements on material weather resistance, reliability, and service life. Cast Polyurethane Elastomers (CPU), with their properties of high wear resistance, chemical corrosion resistance, impact resistance, and flexible customization, have become a ideal material for critical components in this industry. They are widely used in applications such as drilling and production, transportation, wellhead equipment, and offshore oil and gas platforms.
Advantages in OIL & GAS Industry
- High wear resistance, resistant to cutting and tearing, dimensionally stable; also supports load-bearing, oil/gas resistance, and chemical resistance. Volume wear rate < 0.05 cm³/1.61 km – 5-8 times that of natural rubber and 3-4 times that of nitrile rubber
- Chemical Corrosion Resistance Resistant to crude oil, mud (containing drilling fluid additives), formation water (high salinity/high mineralization), and H₂S/CO₂ corrosion; performance attenuation < 5% after 72-hour immersion
- High Pressure Resistance & Impact Resistance: Compressive strength > 80 MPa at room temperature, elongation at break > 400%; capable of withstanding 30 MPa high pressure at wellheads and impact loads from pipeline pigging
- Wide Temperature Range Stability: Operating temperature range: -40℃ (cold-region oilfields) to 120℃ (long-term, special formulation); no brittleness at low temperatures and no softening at high temperatures
Key Application
- V groove roller for pipeline laying / conveyor
- Fluid separation pig/sphere ("Pig" is a specialized term in the pipeline industry, referring to equipment used for in-pipeline fluid separation, pipeline pigging, etc.; also commonly called "pipeline pig")
- Bend restrictor (Commonly used term in the pipeline industry; used to limit the bending angle of pipelines to protect the pipe body)
- Elbow reinforcer (Enhances the structural strength of pipeline elbow sections to prevent deformation under pressure)
- Mud pump piston/valve (Core moving components and control components adapted for mud pumps)
- Pipe thread die protector (Accessory that protects pipeline thread processing dies from wear)
- Pipeline inspection pig (In-pipeline detection equipment used to identify issues like inner-wall corrosion and leakage of pipelines; industry-standard terminology)
- Drill Pipe/Casing Protective Sleeves
- Pipeline Joint Gaskets/Sealing Rings
- Pipeline Outer Wall Anti-Corrosion Coating/ lining
- Drilling Platform Shock Absorbers
- Wellhead Valve Seals/Valve Cores
- Platform Anti-Collision Blocks/Fenders
- Marine Cable Protective Sleeves
