Seal Stacks, 4.750" Chevron HNBR Vee Seals – AISI 1026 | SKU: 01395789
High-Performance Seal Stack for Packer Systems – Designed for Harsh Downhole Environments
Product Overview
The Seal Stack is a robust, precision-engineered V-packing sealing solution utilizing HNBR Chevron seals and housed in AISI 1026 steel, specifically crafted for oilfield packer systems in cased hole completions. Manufactured by CDI, this seal stack offers superior performance in high-pressure, high-temperature (HPHT) environments, ensuring well integrity and minimizing downtime.
Ideal for procurement teams focused on well reliability and seal performance in mission-critical applications, this component supports safe and efficient reservoir management in both conventional and unconventional fields.
Key Features, Benefits & Advantages
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4.750” Chevron V-Packing Design
Ensures optimal sealing pressure distribution and dynamic response under high-pressure conditions.
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HNBR Material Composition
High-temperature resistance and exceptional chemical compatibility with sour gas and oil-based fluids.
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AISI 1026 Carbon Steel Support
Delivers mechanical strength and dimensional stability under extreme loading.
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Seal Bore Size: 4.25”
Precision fitment for industry-standard packer systems.
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Designed for Harsh Well Environments
Excellent performance under thermal cycling, vibration, and aggressive media.
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Specified Manufacturer Required (CDI)
Guarantees traceability, consistent quality, and long-term performance.
Technical Specifications
|
Attribute |
Value |
|
SKU |
01395789 |
|
Product Name |
Seal Stacks, Chevron Vee Seals |
|
Seal Stack Material |
HNBR (Hydrogenated Nitrile) |
|
Seal Bore Size |
4.25 in |
|
Outer Diameter |
4.750 in |
|
Base Material |
AISI 1026 Carbon Steel |
|
Seal Type |
V-packing Chevron |
|
Manufacturer |
CDI |
|
Component Type |
Type 2 (Seal Stack) |
|
Classification |
Cased Hole Completions – Packers |
|
Source |
Buy (Procurement Component) |
|
Quality Level |
Not Applicable |
Equipment Compatibility & Cross-Reference
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OEM Compatibility:
Designed for use with Weatherford cased hole packer systems.
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Legacy Part Numbers:
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Primary: S-5221-5-852
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Cross Reference: D000419646
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Direct Replacement:
Fully interchangeable with existing 4.750” V-packing stacks in compatible CDI and Weatherford assemblies.
Application & Industry Use
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Applications:
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Seal stacks for downhole packers
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HPHT well completions
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Fluid control in cased hole environments
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Industry Segments:
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Upstream: Completions, Workover, Intervention
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Midstream: Pressure retention in pipeline tools
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Downstream: Limited sealing applications in high-temp transfer systems
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Well Services: Plug-and-perf, zonal isolation
Certifications & Compliance
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Designed in accordance with internal Weatherford quality systems
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Material suitability aligns with:
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NACE MR0175 / ISO 15156 (for H₂S service) – Material compatibility assumed based on HNBR use
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API Component Classification: Type 2
Note: Third-party certification not explicitly listed in documentation; additional certifications available upon request or NDA.
Ordering & Procurement Details
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Availability:
Stocked component – subject to regional availability
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Lead Time:
Standard 2–4 weeks for replenishment; expedited options available
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Shipping & Logistics:
Ships from strategic warehouse hubs in Houston, TX and Aberdeen, UK
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Bulk & Contract Pricing:
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Volume-based discounts available
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Eligible for long-term supply agreements
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Flexible terms: Net 30 / Net 60 upon approval
Frequently Asked Questions (FAQ)
Q: Is this seal stack compatible with high H₂S content wells?
A: Yes, HNBR materials are commonly used in sour gas environments; confirm specific NACE compliance for well conditions.
Q: Can I source alternate materials besides HNBR?
A: This SKU is specified as HNBR. Alternate materials require custom quoting.
Q: Does this part require a specific installation procedure?
A: Standard V-packing installation practices apply; follow Weatherford or CDI guidelines.
Q: Is this item qualified for Class I, Div 1 installations?
A: Not applicable – passive component without ignition source; considered non-electrical.
Q: What’s the typical service life in downhole operations?
A: Depends on well conditions, but HNBR stacks are typically rated for multi-year duty cycles under proper use.
Call To Action
✅ Request a Quote for Bulk Pricing & Availability
✅ Check OEM Fitment & Cross-Reference Part Numbers
✅ Contact Our Procurement Team for Custom Material Configurations