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RIGVIS-EH is a liquid viscosifier containing high purity hydroxyethyl cellulose (HEC) suspended in an organic, ultra-clean, environmentally safe base fluid. RIGVIS-EH is stable and will not settle or experience separation.

Typical Physical Properties

Appearance Tan
Odor Mild
Specific Gravity @ 60°F 1.02 – 1.06
Density (lbs./gallon) 8.5
Flash Point >168°F
pH Neutral


  • When blended with completion fluids, RIGVIS-EH will pass MMS oil and grease regulations.
  • When used as directed and tested according to the U.S. Environmental Protection Agency’s Static Sheen Test, RIGVIS-EH does not form or create a sheen on the surface of receiving waters.
  • Faster yielding than dry HEC.
  • Yields smooth, uniform viscosity with no lumping.
  • Compatible with most drilling muds and workover /completion fluids.
  • Does not require any special mixing or blending procedures.


For a typical treatment to obtain Marsh funnel viscosity of 35-40 sec/qt, mix 5 gallons RIGVIS-EH per 20 barrels of fluid.


Improper handling of this product can be injurious to workers. Observe all safety precautions shown on the label and in the Material Safety Data Sheet.