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Cameron U Type Ram BOP Opening Closing Explained

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January 01, 2026
Category Connection: Cameron Ram BOP
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Tags:
#Cameron U BOP #FC Ram BOP #U Type Ram BOP
Brief: This video explains the main functions and practical uses of the Cameron U Type Ram BOP in a clear, step-by-step format. You will see a detailed demonstration of the opening and closing mechanisms, including the precise hydraulic drive system that controls both the rams and bonnets. Learn about the operational logic where opening the rams closes the bonnets and vice versa, and get insights into proper installation, inspection procedures, and maintenance protocols for reliable well control in oil and gas operations.
Related Product Features:
  • Full forged structure with high-strength alloy steel components for excellent impact and high-pressure resistance.
  • Wide range of bore sizes from 7 1/16" to 26 3/4" and pressure ratings from 2000psi to 15000psi.
  • Precise hydraulic oil passage-driven bonnet design with linkage logic between rams and bonnets.
  • Dual protection sealing system with initial sealing points and pressure-assisted sealing capability.
  • Compatible with various ram types including pipe, blind, shear, and variable-bore rams.
  • Corrosion-resistant construction with stainless steel overlay welding complying with NACE MR-0175 standard.
  • Hydraulically driven bonnets that slide open for quick access to wearing parts and easy maintenance.
  • Manual locking mechanism for long-term well sealing with clear operational procedures.
FAQs:
  • What is the operational logic between the rams and bonnets in the Cameron U Type Ram BOP?
    The core operational logic is 'opening the rams closes the bonnets, and closing the rams opens the bonnets'. When hydraulic oil is injected into the opening oil passage, it drives the rams to open while simultaneously closing the bonnets. Conversely, when oil is directed to the closing oil passage, it closes the rams while opening the bonnets for maintenance access.
  • What pressure ratings and bore sizes are available for this blowout preventer?
    The Cameron U Type Ram BOP offers a wide range of bore sizes including 7 1/16", 9", 11", 13 5/8", 16 3/4", 18 3/4", 20 3/4", 21 1/4", and 26 3/4". The rated working pressure ranges from 2000psi (13.8MPa) to 15000psi (103.4MPa), meeting medium-high to high-pressure operation requirements for various wellbore and string sizes.
  • How does the sealing system ensure reliable performance under pressure?
    The sealing system provides dual protection through initial sealing at four key points (ram top seal with body, front seal with string/itself, body with bonnet, and ram shaft with bonnet). Downhole pressure further enhances sealing by pushing the rams against the sealing surface. Additionally, a secondary sealing mechanism allows for emergency remediation through grease injection if the primary sealing ring is damaged.
  • What maintenance and inspection procedures are recommended for this BOP?
    Regular maintenance includes daily testing of the ram-bonnet linkage function after entering the target zone, blind ram testing after each tripping operation, and regular checks of piston rods, oil passages, and sealing conditions. Aging rubber packers should be replaced as needed, and all bolts should be re-tightened after pressure tests to ensure proper sealing.
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