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WELLTEC® PUNCHER

Non-explosive method for equalizing pressures between tubular strings

Introduction

Welltec Puncher - efficient, safe, non-explosive operations for drill pipe, liner, tubing and casing recovery operations. The Welltec Puncher provides an efficient, e-line conveyed, non-explosive method for equalizing pressures between tubular strings. 

  • Challenge
    Plug and abandonment
    Downhole hardware
  • Applications
    Non-explosive punching for pressure release
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Case highlight

CHALLENGE
Downhole hardware

An oil producer was completed with three 6-5/8” expandable sand screens covering the upper and lower formations. The two uppermost screens each contained inflow control devices to...

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Overview

The Welltec Puncher provides an efficient, e-line conveyed, non explosive method for equalizing pressures between tubular strings. Its innovative design quickly creates a controlled diameter hole in the tubular at the target depth for pipe recovery or completion removal without the use of explosives. Utilizing a fast, drilling technique, the Welltec Puncher produces a precise, uniform hole. The puncher can be run slick to any depth in the well or equipped with a ‘no-go’ for a hole punch at an exact depth. Multiple holes can be drilled in a single descent and it can be deployed independently or with other tools. It can be combined with the Well Tractor® for punching in highly deviated or horizontal wells.

Datasheet: 1 File

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Applications

  • Pressure equalization
  • Heavy fluids injection
  • Production inflow control
  • Injection flow control

Features

  • Through tubing hole punching
  • Multiple punches in the same run
  • Standard tubing
  • Through wired
  • Configurable
  • Modular
  • NACE compliant

Benefits

  • No explosives
  • No perforation burr
  • Combinable with other services
  • Rigless punch for batch work
  • Accurate depth control
  • Operates on any e-line via DC

Specification*

Tool OD 3 1/8”
Length 20.5 ft
Weight in air 385 lbs
Min. completion ID 3.4”
Max. pipe ID 7"
Hole diameter 5 - 25 mm
Max. well pressure 25,000 psi
Max. well temperature 302°F
Tensile strength 42,000 lbs
Compressive strength 50,000 lbs
* Dependent upon configuration

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