Product Overview
The ROk-ANkOR® Slip System by Weatherford is a hydraulically set openhole anchoring solution engineered to reliably secure liners during high-pressure stimulation and production operations. Its patented low-penetration slip design minimizes formation damage while delivering robust holding capacity, making it ideal for horizontal wells and multizone completions. As a core element in Weatherford’s ZoneSelect™ system, this anchor is purpose-built for operational reliability, precision, and maximum tool longevity.
Key Features, Benefits & Advantages
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Anti-Preset Mechanism – Prevents accidental tool activation during deployment.
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Low-Damage Slip Design – Patented technology reduces slip penetration for minimal formation impact.
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Irregular Hole Compliance – Maintains reliable anchoring in non-uniform wellbores.
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Integrated Centralization – Keeps the completion string centered, reducing vibrational fatigue.
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Sliding Prevention – Secures openhole packers from moving, improving long-term reliability.
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Scalable Load Capacity – Stackable for enhanced anchoring strength.
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Flexible Placement – Can be positioned anywhere along the completion string.
Technical Specifications
| Parameter | Value |
|---|---|
| Tool Size | 4-1/2 in. × 6-1/2 in. |
| Openhole Range | 6 to 6-1/2 in. (152.4 to 165.1 mm) |
| Tubing Size | 4-1/2 in. (114.3 mm) |
| Tubing Weight | 12.6 lb/ft (5.715 kg/m) |
| Differential Pressure | 1,000 psi (6.895 MPa) |
| Holding Capacity | 200,000 lb (90,718 kg) |
| Body Material | 4140 P-110 steel |
| Maximum OD | 5-3/4 in. (146.1 mm) |
| Minimum ID | 3-1/2 in. (88.9 mm) |
Equipment Compatibility & Cross-Reference
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System Compatibility: Fully compatible with Weatherford’s ZoneSelect™ fracturing systems
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Completion Types: Supports both cemented and openhole completion assemblies
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Deployment Method: Hydraulically set, positioned at the toe or strategic zones of the well
Application & Industry Use
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Applications:
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Openhole completions requiring high anchoring reliability
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High-pressure hydraulic fracturing zones
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Horizontal wells with non-uniform bore geometry
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Anchor support for openhole packers
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Industry Segments:
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Upstream unconventional completions
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Tight gas and shale plays
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Offshore and onshore stimulation programs
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Certifications & Compliance
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Constructed from 4140 P-110 high-strength steel
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Designed to meet pressure integrity and mechanical holding demands of high-pressure completions
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Built under ISO 9001-certified manufacturing processes
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Suitable for use in Class I Div 2 hazardous environments
Ordering & Procurement Details
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Availability: Stocked for 4-1/2” × 6-1/2” configurations; other sizes available upon request
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Lead Times: 2–3 weeks standard; expedited service available
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Bulk Orders: Volume pricing and long-term contract fulfillment available
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Shipping Hubs: North America, Middle East, Latin America, and APAC regions
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Payment Terms: Flexible Net 30/60 available for pre-approved buyers
Frequently Asked Questions (FAQ)
Q: Can multiple anchors be installed in the same wellbore?
A: Yes. The system is designed for stacking to meet custom load requirements.
Q: How does the tool handle irregular borehole shapes?
A: The slip mechanism adapts to bore irregularities, maintaining secure liner anchoring.
Q: What prevents it from prematurely setting?
A: An anti-preset mechanism ensures activation only occurs when intended via hydraulic pressure.
Q: What is the typical holding strength of the tool?
A: Each tool is rated to 200,000 lb (90,718 kg) holding capacity.
Q: Is it compatible with openhole packers?
A: Yes. The anchor prevents movement of openhole packers, improving their life span and reliability.
Call to Action (CTA)
📩 Request a Quote for Availability & Volume Pricing
🛠️ Contact Us for Custom Engineering Support
📦 Explore Contract Supply Options for Multi-Well Campaigns
📎 For complete specifications, pressure ratings, and mill-out performance data, see the attached technical data sheet (PDF).