Calcium Carbonate (CaCO3)
Lost Circulation Material
Product Description
Calcium Carbonate (CaCO3) is a high-purity ground limestone, used to increase the density of drilling and workover fluids, to reduce fluid loss and as a lost circulation material.
Used as a weighting agent, a bridging agent to reduce filtration loss (for F, M or C)
Used as a lost-circulation material in both water-based and nonaqueous drilling fluids (for F, M or C)
Current uses include wellbore strengthening
  • Environmentally benign
  • Compatible with formate systems, as well as general water and nonaqueous fluids
  • Resists attrition
  • Effective LCM material
Technical Data  
Appearance White powder or fine granules
Density 2.7-2.9 g/cm3
Particle size 30-350 mesh
Recommended Treatment
  • As a weighting agent as per the calculated mass balance equation
  • As a bridging material 14.3-143 kg/m3
  • As a LCM pill 4.3-286 kg/m3
Transportation of commodity name is not restricted by international regulatory agencies.
Safe Handling Recommendations
Utilize normal precautions for employee protection when handling chemical products. Use of standard PPE is recommended for employee comfort and safety. See Material Safety Data Sheet (MSDS) prior to use.
Package and Storage
25kg bags, jumbo bags or according to customer's requirement.
Avoid high-intensity extreme pressure and prolonged exposure to strong sunlight. Keep container closed. Keep away from heat, sparks and flames.