Excellent water separation is vital to efficient slurry tunneling.

Separation difficulties result in:

• Severe loss of advance rate due to over-weight slurry.
• Equipment wear due to excessive solids in the slurry
• Major expenses in dumping and diluting the slurry
• Centrifugal flocculaton techniques will remove all fines and return clear water to the system.

Viscosity and Gel Strength

Plain water is generally the best fluid for slurry tunneling in clays. But or difficult conditions such as gravels, cobbles, and open running sands, Morrison Mud use controlled rheology to formulate special slurries - with or without bentonite - which

• Prevent scouring and over-mining
• Resist slurry loss into the ground
• Provide real support for unstable face
• Give very high cuttings loading at lower pump rates
• Prevent s settling out in pipes, pumps and tanks

Bentonite-free slurry

Mudtech offer a full range of cost-effective alternatives to bentonite.

Mud testing equipment - available on request.