Attapulgite™ Additive

Attapulgite™ suspending agent is a colloidal clay mineral composed primarily of magnesium silicate, silica, and crystalline quartz. In salt water, Attapulgite suspending agent swells to approximately 10 times its original volume.

Attapulgite suspending agent was designed for saltwater applications. It is used for decreasing slurry weight and increasing slurry volume. It is effective at temperatures up to 500°F (260°C). Typical Attapulgite suspending agent concentrations are 2% to 10%.

Attapulgite suspending agent is compatible with slurries containing fibrous, granular, and flake-type lost-circulation materials.

Attapulgite suspending agent can provide the following benefits:

  • Easily obtained and can provide an effective lost-circulation material when mixed with other common oilfield materials.
  • The overall cost for treatment can be less than that of other lost-circulation methods.
  • This material can be effective in regular and cavernous lost-circulation zones and where drilling with fibrous, granular, or flake materials has been ineffective.
  • Attapulgite suspending agent has a shelf-life of up to 24 months and is not classified as a hazardous waste by the Environmental Protection Agency (EPA).
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