Well Expandablebit 00000 JPG

Well Miller ®

with Expandable Bit

Introduction

The Well Miller® Expandable Bit for hardware milling provides operators with a better way to repair wells with mechanical obstacles. It can pass through small ID and expand to a larger OD when activated.

The bit will extract if communication is lost to the tool. Using only e-line tools, nipple profiles or other restrictions can be eliminated or increased, plugs can be removed, failed isolation valves can be milled through for production or access to deeper parts of the wellbore. The Well Miller® is run in combination with the Well Tractor® for precise control of weight on bit and to counter reactive torque.

  • Challenge
    Downhole access
    Downhole hardware
  • Applications
    Removal of scale, high viscosity deposits and consolidated debris
Well Expandablebit 360 00000
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Case highlight

CHALLENGE
Downhole hardware

In 2018, an offshore client in the North Sea attempted to set an orientation sleeve and then an insert safety valve. The orientation sleeve was installed, but the insert safety valve did not...

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Overview

Well Miller expandable bit for hardware milling provides operators with a better way to repair wells with mechanical problems. It can pass through small ID and expand to a larger OD when activated. The bit will extract if communication is lost to the tool. Using only e-line tools, nipple profiles or other restrictions can be eliminated or increased, plugs can be removed, failed isolation valves can be milled through for production or access to deeper parts of the wellbore. The Well Miller® is run in combination with the Well Tractor® for precise control of weight on bit and to counter reactive torque.
Well Expandablebit Vert 00000
Well Expandablebit Hori 00000

APPLICATIONS

  • Nipple profile milling
  • Access through failed isolation valve
  • Cement plug milling
  • Enlargement of buckled tubing
  • Bridge plug removal

FEATURES

  • Passive fail-safe system
  • Modular
  • Surface read-out
  • Various bits based on objective
  • Expandable bit
  • Universal
  • NACE compliant

BENEFITS

  • No additional fluids required
  • Provides access to TD
  • Large range of ID’s accessible
  • Accurate depth control
  • Operates on any e-line via DC

SPECIFICATIONS

Tool body OD 3 1/8”
Length 12.7 ft
Weight in air 190 lbs
Minimum completion ID 3.25”
Maximum Bit OD 5.0”
Maximum well pressure 25,000 psi
Maximum well temperature 302 F
Tensile strength 42,000 lbs
Compressive strength 50,000 lbs