Hebei Constellation Energy Technology Co., Ltd.
                                                                                                           
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Hydril GK Type Annular BOP 13 5/8" Bore 5000psi Working Pressure Forging Blowout Preventer

Price Negotiable
Price: 39500USD~45600USD
MOQ: 1
Delivery Time: 60~75 days
Brand: RZY
Product Description
Hydril GK Type 13 5/8"-5000psi Forging Annular BOP
The Hydril Annular Blowout Preventer (BOP) is a versatile pressure control system engineered for surface rigs, offshore platforms, and subsea operations. With a proven track record in the petroleum industry, it delivers reliable well control with customizable features and operational efficiency.
Key Features & Benefits
  • Simplified Design: Only two primary components (piston and packing element) minimize wear points, reducing maintenance requirements and operational downtime
  • Stable Long-Piston Configuration: Features a length-to-diameter ratio of nearly 1:1, preventing cocking and binding during operations with off-center drill pipe or uneven sediment accumulation
  • Conical Bowl Piston Design: Serves as a sealing surface against rubber packing elements, eliminating metal-to-metal contact and extending service life
  • Field-Replaceable Wear Plate: Provides an upper non-sealing wear surface for packing elements, enabling rapid on-site maintenance and cost-effective repairs
  • Dual Head Configuration Options: Screwed head design ensures secure body-head connection without loose components; latched head (available for 13-5/8"-5000 psi and larger models) facilitates quick access to packing elements and seals
  • Robust Sealing System: Large pressure-energized seals dynamically seal piston chambers, ensuring extended seal longevity and minimal maintenance
  • Comprehensive Testing & Compliance: Operating chambers tested to full working pressure; meets NACE MR-01-75 standards for sulfide stress cracking resistance
  • Flexible Packing Element Selection: Two rubber compound options (natural rubber and nitrile rubber) accommodate diverse drilling conditions
Operational Principles
Basic Actuation: Requires both opening and closing hydraulic pressure. Seal-off is achieved by applying hydraulic pressure to the closing chamber, raising the piston and forcing the packing element into sealing engagement with drill pipes or open bore.
Well Pressure Assistance: After initial seal establishment, well pressure helps maintain the seal (excluding 7-1/16"-15,000 and 20,000 psi models requiring sustained closing pressure).
Stripping Operations: Drill pipe can be rotated and tool joints stripped through closed packing elements while maintaining seal integrity. Optimal packing element life is achieved by setting closing chamber pressure to permit minimal drilling fluid leakage for lubrication.
Control System Integration: Compatible with standard accumulator units equipped with separate pressure regulator valves for annular BOP operation and sufficient accumulator volume.
Supplementary Components: For slow-responding pressure regulator valves, install an accumulator (surge absorber) precharged to 50% of required closing pressure in the closing chamber control line. Subsea operations may require additional accumulators in opening chamber lines to prevent pressure fluctuations.
Hydril GK Type 13 5/8 inch 5000psi Annular Blowout Preventer technical diagram
Technical Specifications
Item Specification
Model Model H 13 5/8″-5000psi
Drift Diameter 13 5/8" (346.1mm)
Rated Working Pressure 34.5MPa (5,000psi)
Hydrostatic Test Pressure 51.8MPa (7,500psi)
Hydraulic Control Rated Working Pressure 20.7MPa (3,000psi)
Recommended Hydraulic Control Working Pressure to Close Open Hole ≤19MPa (2,714psi)
Recommended Hydraulic Control Working Pressure to Seal Pipe 8.3~10.4MPa (1,200~1,500psi)
Maximum Working Pressure to Close Open Hole 17.5MPa (2,500psi)
Maximum Open Volume 54L
Maximum Close Volume 68L
Weight 6917kg
Shackle Lifting Weight 20t
Temperature Ratings for Non-Metallic Materials BGB(PR1, -18℃~+93℃)
Temperature Ratings for Metallic Materials T-20/250 (-29℃~+121℃)
Note: BOP is designed and manufactured according to API Spec 16A. All metallic materials contacting well fluids meet NACE MR0175 requirements for sour service applications.

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Hebei Constellation Energy Technology Co., Ltd.
Location Scientific Research Residential Area, Renqiu City, Hebei Province, China
Contact Person Ernesto

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