Hydraflow Advanced Wellbore Cleaning System (HAWCS)

The Hydraflow™ Advanced Wellbore Cleaning System (HAWCS) utilizes a high flow rate combined with lower pump pressure to optimize Riser & BOP cleaning efficiency.

Features

  • The 16” OD High-Flow Sleeve features 12 offset large TFA ports designed to clean the riser wall and effectively penetrate the BOP cavities to clear and flush out debris.
  • Nine upward-angled large TFA ports are arranged along the body to help reintroduce debris into the flow path, allowing it to be carried upward to the surface.
  • An optional integral pup joint is available for easier handling
  • An optional Lower Bull Nose or Pin Down connection to accommodate various applications.

Benefits

  • Cost Savings
    • Maximizing Riser & BOP cleaning efficiency to reduce operating time has a huge impact on operating costs on expensive semi-submersibles
    • No field maintenance required
  • Integrity
    • Available with high torque connections minimizing the need for reduced strength crossovers
    • Single piece mandrel with no internal connections for increased strength
  • Reducing Non-Productive Time
    • Reduces premature failure of completion equipment by debris which can interfere or damage valves, electronics and other hardware

Applications

  • Deep water pre-completion wellbore clean-ups from semi-submersible drilling units
  • Riser cleaning during displacement to sea water before disconnection or moving from location

Operational

  • The Hydraflow™ Advanced Wellbore Cleaning System (HAWCS) is typically run in conjunction with the Riser Cleaning Tool and XTractR™ BOP Junk Catcher or as a standalone tool.
  • The 16” OD High-Flow Sleeve features 12 offset large TFA ports designed to clean the riser wall and effectively penetrate the BOP cavities to clear and flush out debris.
  • Best practice recommends to function the rams and
  • annular to help dislodge debris before jetting the BOP
  • stack at 35 BPM while rotating slowly, making 3 passes.
  • The upward angled nozzles assist in carrying debris to surface through inducement of turbulent flow.
  • HAWCS can also be run with a wear bushing retrieval tool below.
  • The high-flow sleeve is available in various sizes, 16” OD or 12.750” OD.
Fact sheet