Wellhead Manifold Support Bracket

Name: Manifold Bracket for Downhole Load Control in Wells – Frigate
Price: 249.00 USD
Availability: InStock

Wellhead Manifold Support Bracket is designed to manage the combined static and dynamic loads imposed by multi-valve manifold assemblies during surface well control operations. Axial, torsional, and bending stresses generated from pressure surges, valve actuation, and flow redirection are efficiently redistributed through the bracket’s engineered mounting structure. This support system eliminates unwanted deflection at the wellhead connection point, preserving flange integrity and preventing long-term material fatigue.

Material Grade & Specification

AISI 4340 Alloy Steel, API Spec 6A, ASTM A105 (carbon steel), ASTM A182 F22 (for higher strength)

Dimensional Tolerances

±0.005 inches (±0.13 mm) for critical dimensions, ±0.002 inches (±0.05 mm) for mounting holes

Surface Finish Requirement

Ra ≤ 1.6 µm (63 µin) for sealing and critical surfaces, Ra ≤ 3.2 µm (125 µin) for non-critical areas

Heat Treatment Specification

Quenching and Tempering (QT) to 28-32 HRC (Hardness) for optimal strength and toughness

Load Bearing Capacity Requirement

30,000 psi or higher (depending on custom specifications for specific load requirements)

Product Description

High-temperature gradients in flowlines and manifolds can cause differential thermal expansion, leading to mechanical displacement or pipeline strain. Wellhead Manifold Support Bracket incorporates allowance for linear and angular expansion without compromising joint alignment. Bracket configurations accommodate fixed, sliding, or guided support roles based on thermal modeling, ensuring safe operation during production cycles and thermal ramp-up phases.

Welding Specification

Welded joints to be in accordance with AWS D1.1, full penetration welds for critical stress areas

Hardness Requirement

28-32 HRC (after heat treatment)

Non-Destructive Testing (NDT) Requirement

Ultrasonic Testing (UT), Magnetic Particle Testing (MT), Dye Penetrant Testing (DPT) as per API standards

Coating/Plating Requirement

Zinc or Epoxy Coating for corrosion resistance, or Phosphate Coating (if specified)

Certification Standard

API Spec 6A, ISO 9001:2015, PED (Pressure Equipment Directive), ATEX (if required)

Technical Advantages

Flow-induced pulsations and valve actuation shocks generate high-frequency vibration across manifold systems, threatening structural integrity and connection reliability. Wellhead Manifold Support Bracket isolates and absorbs vibratory loads through tuned geometries and rigid anchoring to structural pads. Design accounts for modal response and resonance frequencies to prevent amplification of harmonics that can damage piping components or lead to fatigue cracks.

Manifold loads must not transfer into the wellhead body, as they compromise casing hanger alignment and pressure containment. Wellhead Manifold Support Bracket serves as a mechanical decoupling point, ensuring all operational loads are diverted to structural beams or skid frames. This prevents overloading of critical wellhead seals and maintains compliance with API 6A tolerances for vertical and lateral loading.

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Industry Applications

Onshore Oil Production Pads

Supports heavy manifold headers on concrete skids, preventing stress transfer to wellheads during simultaneous multi-well operations.

Offshore Platform Drilling Modules

Secures manifold piping exposed to wave-induced vibration and dynamic loading on jack-up and fixed offshore structures.

High-Pressure Gas Injection Facilities

Stabilizes injection manifolds handling cyclic pressure loads, reducing flange fatigue and maintaining axial alignment across injection headers.

Enhanced Oil Recovery (EOR) Systems

Maintains structural alignment of chemical injection manifolds, compensating for thermal cycling and preventing pipeline displacement under variable flow conditions.

Multi-Well Tie-in Assemblies

Provides rigid support for complex tie-in manifolds, ensuring individual well flowlines remain isolated from structural and operational stresses.

Hydraulic Fracturing Manifold Skids

Anchors fracturing manifolds subjected to extreme pulsation and pressure surges, minimizing joint movement and equipment misalignment during stimulation.

Modular Fitment for Field Configurations

Field-deployed wellsite layouts often require flexible mounting geometries due to spatial constraints or retrofit scenarios. Wellhead Manifold Support Bracket is modularly engineered to integrate with horizontal and vertical manifold runs, accommodating offset pipe runs and custom tie-in points. Bracket interfaces are machined to tight tolerances, enabling direct bolting to prefabricated baseplates or custom structural weldments without field rework.

Wellhead Manifold Support Bracket is manufactured from corrosion-resistant alloys or surface-treated carbon steels depending on site exposure. Offshore or high-H₂S zones require brackets compliant with NACE MR0175/ISO 15156, while arid land operations may require UV-stabilized coatings. All finishes and materials are selected based on projected service life, temperature class, and exposure category, ensuring consistent mechanical performance in aggressive environments.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure load-bearing accuracy in Wellhead Manifold Support Bracket design?

Frigate uses Finite Element Analysis (FEA) to simulate stress distribution under static and dynamic conditions. Load paths are verified against actual manifold configurations to prevent bracket deformation. All brackets are rated for worst-case bending and shear forces per API 6A support load criteria. This ensures the bracket maintains structural integrity without transferring excess force to the wellhead.

What testing does Frigate perform to validate bracket performance under field conditions?

Frigate conducts full-scale mechanical testing under simulated pressure, thermal, and vibratory loads. Brackets are exposed to cyclic load profiles to verify fatigue life. Welds and mounting interfaces are inspected using ultrasonic and radiographic methods. Testing ensures compliance with ASME and offshore equipment structural codes.

Can Frigate customize Wellhead Manifold Support Brackets for uneven terrain or sloped skid structures?

Yes, Frigate fabricates adjustable and multi-angle brackets for non-level foundation installations. Mounting bases can be machined with compound angles to match platform geometry. Custom shims and risers are also provided for precise leveling. This ensures manifold loads remain uniformly distributed without localized stress concentrations.

How does Frigate handle corrosion protection for offshore Wellhead Manifold Support Brackets?

Frigate applies multi-layer protective systems including hot-dip galvanizing, epoxy primers, and polyurethane topcoats. Materials are selected based on offshore environmental data and ISO 12944 corrosivity categories. Brackets can also be made from duplex stainless steel or coated carbon steel with cathodic protection. These measures extend bracket life in highly saline and humid offshore conditions.

What design provisions does Frigate include for seismic-prone regions or mobile rig platforms?

Frigate incorporates seismic restraint calculations per ASCE 7 and API RP 2A guidelines for platform-mounted systems. Brackets are designed with higher moment-resisting joints and ductile load paths. Vibration isolation pads and anchor bolts with slip resistance are used. This ensures bracket stability during ground motion or mobile unit relocation.

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