IntegraGuard™ STAR

Cement Spacer System

IntegraGuard STAR cement spacer system is a unique, well-proven solution for eliminating cement losses associated with cementing operations. 

Cement losses, either during cementing or as fallback after cement placement, can cause expensive remedial work. Curing losses ensures planned cement tops and can save excess cement slurry costs and even eliminate the need for intermediate casing strings. 

IntegraGuard STAR uses advanced fluid and particulate technologies that create a barrier at the formation face, effectively strengthening the wellbore, minimizing fluid invasion and sealing fluid loss paths. 

In extreme situations, additional IntegraGuard Plus sealant can be added to enhance the system sealing capability. 

The lost circulation capability is provided without compromising the primary function of a spacer, the effective mud removal and cement placement. The STAR spacer system provides temperature stability, fluid compatibility and the capability to design specific density and viscosity expected from a premium cement spacer. 

IntegraGuard STAR Spacer Systems can also be used in stand-alone lost circulation situations. 

Technical Data

Typical Properties

Density Range

8.5 ppg to 18.0 ppg


Up to 325°F (163°C)


  • Primary and remedial cementing operations 
  • Vertical, deviated and horizontal wells
  • High permeability, unconsolidated and fractured formations
  • Low fracture gradient wells

Features and benefits

  • Effective mud removal and displacement efficiencies
  • Reduces fluid filtrate losses and potential damage of the formation
  • Improved mud/spacer and spacer/cement compatibilities
  • Easily prepared and pumped with conventional cementing equipment
  • Cures or reduces cement lost circulation