As the core sealing component of annular blowout preventers in drilling and production operations, the structural design and material selection of the annular BOP packing element directly determine the sealing reliability and working condition adaptability of the blowout preventer. According to the structural differences of compatible equipment models, the products are mainly divided into two series: spherical packing elements and conical packing elements. Among them, the spherical packing element is tailor-made for the Shaffer series annular BOPs, while the conical packing element is precisely compatible with the Hydril series annular BOPs, ensuring perfect compatibility with the equipment and efficient collaborative operation.

• Temperature Grade: The product adopts strict temperature grade standards, with the core implementing the BGB-level temperature resistance specification. The applicable ambient temperature range is -18℃ to 93℃, which can stably cope with temperature fluctuations in different regions and seasons during drilling operations, ensuring that the sealing performance does not degrade under extreme temperature conditions.
• Materials: Two professional options are available:
  • Natural Rubber (red): Suitable for water-based mud drilling environments, featuring excellent hydrophilicity, elastic recovery, and wear resistance.
  • Nitrile Rubber (blue): Designed for oil-based mud drilling conditions, possessing outstanding oil resistance, solvent resistance, and anti-aging capabilities. It can effectively resist the erosion of oil-based media on the packing element and extend the service life.

Through the combination of precise structural design and high-quality rubber materials, this series of packing elements achieves tight sealing of drill pipes, casing pipes and other tubular products. Meanwhile, it has good extrusion resistance and tear resistance, and can withstand high-pressure impacts during drilling operations, providing reliable sealing guarantee for the safe development of drilling and production operations. It is widely used in various oil and gas drilling projects such as onshore and offshore drilling.