Wellbore Cleanup


Approximately 32% of all failed completions result from debris being left in the well bore.

Consider the costs of poor Wellbore Cleanup (WBCU) – logistics, lost time, contractors on the rig running out of days, and the consequences of a lack of back up completion equipment.  In many cases, the overall Non-Productive Time (NPT) can run into the millions of dollars or result in the loss of the well.  Even if the consequences do not result in NPT or loss of the well, small size particulates left in the well can block pore throats and reduce productions levels – settled solids can also reduce pay zone size.

Then, compare these costs, the NPT, and the risk of losing the well to the costs of performing Wellbore Cleanup with mechanical and chemical solutions from QMax, which minimize debris associated NPT and reduce, if not eliminate, formation damage - increasing production output and the lifespan of the well before workover is required.  The QMax offering includes the below and much more:

Mechanical

  • Casings and Liners
  • Scraper Tools
  • Bristle Brushes
  • High Strength Magnets
  • Debris Retention Tools
  • High Flow Annular Circulation Tools
  • Inflow and Positive Test Tools
  • Riser Debris Tools and Junk Baskets
  • BOP Jetting Tools

Chemical​

  • Solvents
  • Surfactants
  • Solvent and Surfactant Combinations
  • Biocides
  • Corrosion Inhibitors
  • Oxygen Scavengers

These tools and technologies combined with the correct BHA design, Hydraulics Modelling, and Torque and Drag Analysis maximize the effectiveness of the wellbore cleanout. In addition, many of these tools can be used in remedial work, such as fishing and casing exits, further reducing debris associated NPT.

QMax Value for Wellbore Cleanup is delivered by a team of specialists who concentrate only in WBCU systems – with a minimum of 5 years in this particular field for each member of the team.

For more information, please contact us.