HomeRam Blowout Preventers (Models ROHL & ROHLA)

Ram Blowout Preventers (Models ROHL & ROHLA)

The ROHL & ROHLA Ram Blowout Preventers (BOPs) are designed for well control in drilling operations, providing reliable sealing to prevent the uncontrolled flow of oil, gas, or drilling mud from the wellbore. These BOPs are essential for protecting personnel and equipment by sealing the well around drill pipes, casings, or when the hole is open. The ROHLA model is specially designed for low-temperature arctic service, equipped with a steam heating system.

TS-060 eng.pdf

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Features & specifications

  • High-Pressure Rating: Available for 3000 psi and 5000 psi service, ensuring reliable performance in high-pressure well control scenarios.
  • API 16A Compliant: Meets all API 16A requirements for standard and sour service applications, providing safety and reliability in various environments.
  • Temperature Ratings: Available with API temperature ratings for:
    • T0: 0°F to 250°F (-18°C to 121°C)
    • T20: -20°F to 250°F (-29°C to 121°C)
    • T75: -75°F to 250°F (-59°C to 121°C)
  • Free-Floating Rams: The free-floating design prolongs the life of the rubber seals by preventing wear when the rams are open. The rams rest on guide ribs and only engage the cavity during closure, reducing rubber wear.
  • Self-Feeding Ram Packers: Ram packers lock into place and are designed to withstand well flow. When the rams close, pressure from the wellbore pushes them upwards and inwards, creating a tighter seal.
  • Manual Locking Mechanism: Manually operated locking mechanisms ensure the rams remain securely closed, even when hydraulic pressure is released.
  • Hydraulic Actuation: The BOPs are equipped with a hydraulically operated mechanism with a single piston for each ram. The system is designed for reliability and ease of operation, featuring large lip-type piston seals for durability.
  • Easy Ram Change-Out: Rams can be easily changed without disconnecting hydraulic lines, reducing downtime and minimizing contamination risk.
  • Steam Heating System (ROHLA only): The ROHLA model includes a steam heating system and high-quality isolation shell for operation in arctic conditions.

Sizes:

  • Available in bore sizes from 7 1/16” to 11”.

Pressure Ratings:

  • 3000 psi (210 bar) and 5000 psi (350 bar)

Applications:

  • Drilling Operations: Used to control wellbore pressure during drilling, protecting against blowouts and maintaining well integrity.

Low-Temperature Environments (ROHLA): The ROHLA model is equipped for operation in extreme arctic temperatures, ensuring reliability in cold weather conditions.

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