GARD U-line Open Hole Roller | Wireline Conveyance for Challenging Wellbores | G A R&D Ltd
GARD U-LINE TECHNOLOGY

GARDU-LINESLIP-OVER ROLLERS

GARD U-line Slip-over technology offers a quick attachment to any logging toolstring without the use of fasteners. The entire assembly is retained by an interlock system, making it easy to maintain at the field and even replace wheel size

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Years of Innovation
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WR1S Roller

Tired of Tool Wear and Downtime Caused by Conventional Bearings and Fasteners?

This GARD U-line technology offers a quick attachment to any logging toolstring without the use of fasteners. The entire assembly is retained by an interlock system, making it easy to maintain at the field and even replace wheel size without the requirement of any special tool or highly competent personnel.

  • Modular Wheel Size
  • No Screws!

    • U-LINE CATALOGUE
    WR02 Roller

    Worried about Damaging Critical Mudcake During Tool Runs?

    GARD U-line slip-over rollers provide optimum wheel design that ensures smooth contact while preserving the integrity of sensitive mudcake, minimizing wellbore disturbance and maintaining operational efficiency.

    • An 8° camber angle minimizes mudcake damage during retrieval and prevents rapid wheel embedment when stationary
    • A rolling friction coefficient of 3-6% on wheels reduces POOH cable tension by up to 40% and provides >1″ stand-off from the borehole wall.
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    GARD U-line

    Need Precision Control or Flexible Free-Rotation During Downhole Operations?

    Gard U-line slip-over rollers are one of the world’s leading technology for Universal Intervention that can be locked to direct Open-Hole (OH) sampling services or deployed in free-rotation mode

    • World Standard Roller designed for superior performance
    • Compatible with most existing downhole intervention technologies
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    GARD U-line – Open Hole

    Features & Benefits of our Distinguished U-line Open Hole:

    • No screws, fasteners or ball bearings
    • Operates in open and cased hole environments
    • Innovative slip-over design enables positioning anywhere on the BHA
    • Accurate Sampling operations
    • Increases operational reliability and reduces intervention risks.
    WR6S Product

    WR5S In Focus

    Excellent Performance of GARD U-line Open Hole Products.

    The GARD U-line open-hole roller is designed for HPHT and geothermal wells, operating reliably in high-temperature and aggressive fluid environments.

    The latest industry-backed development, the WR5S sets a new standard for reliable tool conveyance in challenging well conditions.

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    WR5S Product

    WR6S In Focus

    Benchmark Adaptive Wheels

    GARD U-line camber wheels, interchangeable and matched to hole size, are engineered to minimize drag and reduce differential sticking for smooth and reliable tool conveyance.

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    WR1S Roller

    WR1S IN FOCUS

    Fastener-Free Design

    Collet-based retention allows rollers to be positioned optimally along the toolstring, evenly distributing load across all rollers.

    A feature no other slip-over roller can do as effectively as the WR1S

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    WR2S Roller

    WR2S IN FOCUS

    360° swivel orientation system

    GARD U-line WR2S and slip-over roller conveyance technology features a 360° swivel orientation system for logging sensors and sampling tools, enabling precise alignment at any required custom angle.

    A feature no other open hole roller can do as effectively as the GARD U-line slip-over rollers

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    Technical Specification

    WR5S Icon

    WR5S

    Wheel Camber Angle 0° Camber 8°
    Weight 18.7kg (41.2 lbs) 18.7kg (41.2 lbs)
    Length 365mm (1.2ft) 365mm (1.2ft)
    Min Hole Size 8.0″ 8.0″
    Max Hole Size 12-1/4″ 12-1/4″
    Drag Coefficient Static 3 3.1
    Drag Coefficient Dynamic 2.8 2.9
    Temperature rating 343° C (650° F) 343° C (650° F)
    Pressure rating 30,000 psi 30,000 psi
    Wheel Effective Diameter 7-1/4″, 7-1/2″, 7-3/4″ 7-1/4″, 7-1/2″, 7-3/4″
    WR5S Chassis OD 6-3/4″ 6-3/4″
    WR5S Bore 3-3/8″, 3-5/8″ 3-3/8″, 3-5/8″
    Standoff in 8.0" wellbore 31 mm 30 mm
    Clear Low Side Angle of Bore Hole 64° 78°
    Standard Bore with sleeve options to accommodate 3-3/8" & 3-5/8" Logging toolstrings.
    Standoff drops slightly when camber setting is applied on the wheels for 8″ Borehole ID (8-1/2″ drill bit).
    WR5S technical view
    WR5S Technical View
    WR5S operational view
    WR5S Technical View

    Technical Specification

    WR6S Icon

    WR6S

    Wheel Setting 0° Camber 8°
    Weight 11.4kg (25.1 lbs) 11.4kg (25.1 lbs)
    Length 365mm (1.2 ft) 365mm (1.2 ft)
    Min Hole Size 8.0″ 8.0″
    Max Hole Size 12-1/4″ 12-1/4″
    Drag Coefficient Static 3 3.1
    Drag Coefficient Dynamic 2.8 2.9
    Temperature rating 343° C (650° F) 343° C (650° F)
    Pressure rating 30,000 psi 30,000 psi
    Wheel Effective Diameter Range 7-1/4″, 7-7/8″ 7-1/4″, 7-7/8″
    WR6S Chassis OD 6-3/4″ 6-3/4″
    WR6S Bore 4-1/2″ & 4-3/4″ 4-1/2″ & 4-3/4″
    Standoff in 8.0" wellbore 32 mm 31 mm
    Clear Low Side Angle of Bore Hole 77° 86°
    4-3/4" Standard Bore with sleeve options to accommodate 4-1/2" Logging toolstrings.
    Standoff drops slightly when camber setting is applied on the wheels for 8″ borehole ID (8-1/2″ drill bit).
    WR6S technical view
    WR6S Technical View
    WR6S operational view
    WR6S Technical View
    Note: New Specifications can be made to meet customer requirements.
    – WR1S WR2S WR5S WR6S –

    Superiority of U-line Products

    Excited about the Slip-over Roller Capabilities?

    Why delay when immediate contact with us gives you access to one of the Industry’s Top-Performing Products? It is engineered to safeguard your oilfields while providing the most Efficient and Seamless exploration experience.


    CONTACT US TODAY!

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