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Shale stabilizer for water-based drilling fluids


KLA‐GARD shale stabilizer reduces the swelling of sensitive shales and drill cuttings exposed to water‐base drilling fluids. It inhibits shale hydration, reducing the effect of drill solids on viscosity and it works to minimize problems such as excessive dilution rates, increased torque and drag, high surge and swab pressures and bottomhole assembly balling.

This high‐quality, concentrated product has applications in a wide variety of mud systems and has such low toxicity characteristics it can be considered for offshore applications. KLA‐GARD is used specifically for applications where additional inhibition is needed as an alternative to gyp, lime and potassium systems.

KLA‐GARD stabilizer is compatible with most drilling fluid additives, and is especially suited for use in freshly prepared, low‐solids polymer systems such as the POLY‐PLUS system. KLA‐GARD works by being adsorbed onto active solids, thereby reducing their sensitivity to water. This action causes the product to be depleted from the mud system at a rate dependent on the reactivity of the formation, cuttings size, and amount of hole volume drilled.


  • Highly effective shale stabilizer
  • Effective at all pH levels
  • Environmentally acceptable
  • Stable at temperatures in excess of 400°F (204°C)
  • Reduces potential for bit balling
  • Minimizes the amount of dilution required and the associated treatment costs
  • Unaffected by contaminants such as hard water, cement, or CO2


Product Sheets

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