Schlumberger

RAZOR BACK WITH TOP DRESS MILL

Specialized casing and liner top cleaning tool

We provide the RAZOR BACK WITH TOP DRESS MILL specialized casing and liner top cleaning tool to ensure scraping very close to the liner top. This mechanism assures the liner-top tieback packers are set and sealed in a clean and properly prepared section of casing.

The RAZOR BACK WITH TOP DRESS MILL tool configuration is designed specifically for cleaning casings and dressing liner-top polished-bore receptacles (PBRs).

The tool is HPHT compatible and not vulnerable to chemical or acid attack. It is run as a stand-alone device or with chemical cleaning agents or circulating tools, like the BRISTLE BACK casing brush. The RAZOR BACK casing cleaning tool is very robust and effective in removing mud solids, heavy cement sheath, heavy pipe scale, and perforation burrs from the casing ID. It also effectively dresses off the liner-top PBR.

Features

  • Secure components
  • Self-centralizing, flexible-blade lantern
  • Availability in all common casing-liner sizes, complete with top dress mill for all common PBR sizes
  • Drillpipe box-up/pin-down connections

Advantages

  • Removes cement and mud solids, burrs, and pipe scale
  • Enhances chemical cleaning action
  • Scrapes casing very close to the liner top

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