Elastomers play a crucial role in the functionality of blowout preventers (BOPs). These resilient, rubber-like materials are effective sealants, preventing leaks and ensuring safety. The different types of elastomers play different roles in offshore drilling applications.
What Are Common Elastomers in the Oil and Gas Industry?
Like diverse BOPs tailored for specific environments, various elastomers cater to distinct conditions. To help you navigate these options, let’s delve into the six common types of elastomers and their unique attributes.
- FKM (Fluoroelastomer)
- NBR (Nitrile Butadiene Rubber)
- HNBR (Hydrogenated Nitrile Butadiene Rubber)
- FEPM (Fluoroelastomer with Peroxide Cure)
- FFKM (Perfluoroelastomer)
- EPDM (Ethylene Propylene Diene Monomer)
1) FKM (Fluoroelastomer)
FKM elastomers, constituting 80% of fluoroelastomers, boast impressive versatility. These elastomeric materials can withstand temperatures up to +205°C (401°F) and resist most chemicals. Their resistance to heat makes them an ideal cost-effective choice for budget-conscious applications.
2) NBR (Nitrile Butadiene Rubber)
NBR elastomers, while more delicate, offer remarkable resistance to carbon dioxide and other underground chemicals. However, they have limitations, faltering under exposure to highly alkaline fluids. Typically used in completion equipment, NBRs address specific needs in less extreme environments.
3) HNBR (Hydrogenated Nitrile Butadiene Rubber)
HNBR, a more robust alternative to NBR, exhibits heightened durability within defined parameters. Seek expert advice for a thorough assessment, ensuring HNBRs align with your project requirements.
4) FEPM (Fluoroelastomer with Peroxide Cure)
FEPM elastomers excel in moderate to high underground temperatures and effectively resist H2S. Beyond the oilfield, these versatile elastomers find applications in automobiles and electrical components.
5) FFKM (Perfluoroelastomer)
Designed for high-pressure or high-temperature applications, FFKM elastomers exhibit notable chemical resistance. They’re often used as packer sealants. Their prevalence in the semiconductor industry warrants careful consideration for certain BOP applications.
6) EPDM (Ethylene Propylene Diene Monomer)
EPDM elastomers stand out as resilient and reliable options. They’re capable of withstanding temperatures ranging from -50°C to +120°/150°C (-60°F to +250°/300°F). Known for their robust barrier against high pressure, hot steam, and oilfield chemicals, EPDMs are a stalwart choice.
The Right Type of Elastomer for Every Application
Consult with a BOP expert to determine the most suitable elastomer for your specific circumstances. Remember, you never compromise on the quality of elastomers. Ensuring a safe and productive workplace is paramount.
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