NUT SHELL is ground walnut shells, available in three grades: Fine, Medium and Coarse, ranging in size from 6-100 mesh. NUT SHELL is used to help combat lost circulation in water and oil-based fluids. All grades may be used alone or in combination with other materials for LCM-spotting fluids and high filtration squeezes. NUT SHELL may also be used in the active system to help prevent lost returns. NUT SHELL is also used as a mechanical friction reducer in deviated holes.
10-30 kg/m³ (typically) or as required.
Appearance: Brown granules
Specific Gravity: 2.2
Solubility: Insoluble
pH: N/A