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Drilling Waste Management: Liquid Waste Treatment



M-I SWACO has engineered  portable and containerized  DEWATERING technologies  that remove colloidal-sized  particles that can seriously  degrade the performance  of water-base drilling fluids.  The DEWATERING systems  

eliminate the need for costly  dilution to maintain density and  rheological properties, thereby  conserving water, reducing  waste volumes and costs.

The fine particles are removed through a  chemically enhanced process of enhanced  centrifugation that is much more cost-effective than using a single high-speed  centrifuge. A number of designs are  available to fit within any onshore or  offshore rig requirement. Regardless of  the unit used,  M-I SWACO DEWATERING† systems  provide operators a powerful tool for  maintaining optimum drilling fluid  properties, while minimizing waste,  reducing treatment and disposal costs.


  • High-capacity centrifuge
  • Fully-contained unit with a  small footprint for rigs with  limited space
  • Optional magnetic flow meter  records volumes processed as  well as water usage
  • Allows cut-point to be reduced  below the capabilities of standard  solids-control equipment  operating parameters
  • Water-recycling capability makes  it easier to keep mud in good  condition at all times and is ideal  where water is scarce


  • Recycling of the fluid phase  reduces water-hauling, drilling  fluid and disposal costs
  • Optimizes environmental performance
  • Reduces chemical costs
  • Maintains active mud in good  working condition

Documents and files

Title Language Action
Dewatering Unit Russia - Case Study English Download Show
DEWATERING - Data Sheet English Download Show
DWU English Download Show

Photo materials