HNBR is a highly saturated specialty elastomer obtained by NBR. It was originally developed to meet the automotive industry's need for oil-resistant rubber. With advancements in technology and the growing demand for high-performance materials across various industries, HNBR has gradually found applications in fields such as oilfields and aerospace.

Rubber is an important engineering material used in the petroleum industry. During oil extraction, rubber products are exposed to crude oil, acids, alkalis, mud, corrosion inhibitors, and other harsh substances, making the working environment extremely demanding.

Therefore, rubber materials need to meet high standards. HNBR exhibits excellent wear resistance, low permanent compression deformation, resistance to weather changes, and excellent ozone aging resistance.

HNBR has a wide range of applications in oilfields, including seals, hoses, packers, blowout preventers, drilling protectors, screw pump stators, and vacuum pistons for exploration and oil extraction equipment. This article will give examples of the application of HNBR in oil field rubber products to help you better understand the superior performance of HNBR.

The performance of the HNBR

High-Temperature Resistance:

HNBR can operate stably at temperatures up to 150°C or even higher, making it suitable for extreme temperature environments.

Oil and Chemical Resistance:

HNBR exhibits excellent resistance to oils, acids, alkalis, and other chemicals, maintaining good physical properties even in harsh conditions.

Excellent Mechanical Properties:

HNBR excels in wear resistance, tensile strength, and tear resistance, making it ideal for the harsh working conditions in oilfields.

Oxidation and Aging Resistance:

Compared to traditional rubber materials, HNBR is more resistant to aging, making it suitable for prolonged use in high-pressure, high-temperature environments.

Application of HNBR in oilfield rubber products

• Gate seal rubber core

The blowout preventer (BOP) is a crucial safety device designed to prevent blowout accidents during oil and gas drilling and extraction, playing a key role in the drilling process. The sealant core is a critical sealing component of the blowout preventer.

During the actual drilling process, due to the variations in drill pipe sizes, frequent changes of sealant cores with different sizes are required, leading to low production efficiency. By using HNBR as the base material and selecting carbon black and white carbon black as reinforcing agents, the mechanical properties and heat resistance of the rubber compound can be controlled by adjusting the white carbon black content. The resulting tapered gate valve sealant core not only effectively improves production efficiency but also reduces costs.

• Packer seals

The packer is a critical downhole tool used in the process of oilfield development and is widely applied in oil extraction operations. The rubber sleeve, as the core component of the packer, serves the sealing function. The quality of the rubber sleeve directly affects the packer's sealing performance, sealing effect, and overall service life.

The rubber sleeve (also known as the packer element) remains in a prolonged working state within the oil and gas wellbore. Due to the high temperatures, high pressure, and the presence of corrosive gases underground, rubber materials often experience aging, tearing, and degradation in their physical and mechanical properties, leading to failure. As the depth of oil wells increases, traditional rubber sleeves struggle to meet the technical requirements.

By using HNBR as the base material for the rubber sleeve, the compound ensures high mechanical strength and low compression deformation. Fatigue testing has shown that the rubber sleeve remains in good condition, fully meeting the operational requirements for oilfield activities.

Conclusion

HNBR's unique properties make it an indispensable material in oilfield rubber products. Whether it's seals, O-rings, or explosion- and corrosion-resistant coatings, HNBR delivers excellent performance under harsh working conditions. As the demand for high-performance materials in the oil and gas industry continues to rise, HNBR is expected to play an even greater role in future oilfield applications.

After understanding the excellent performance of HNBR, if you are interested in HNBR, please contact us for more information about HNBR. We will provide you with technical support and a quotation.