LIMEX - freshwater heavy-weight system

The LIMEX system is a fresh water-based mud with lime designed for well-kill operations. The composition and properties of this system may vary dependent on the drilling and geological conditions. The system has been designed based on the experience with lime-based systems in different regions.


The LIMEX system is optimal for well-killing operations in the conditions with abnormally high formation pressures.


Dependent on the conditions, the LIMEX mud system may provide different advantages.

When killing wells in the conditions with abnormally high formation pressures, the system can provide appropriate rheological properties in the environment with very high content of solids (including weighting agent). The system includes temperature resistant additives, which are not destroyed in high temperature conditions, providing stability of filtration and stability of rheological properties.

The composition of the system can be optimized to improve gel strength properties when killing wells in the conditions with abnormally high formation pressures. This system is characterized with improved thixotropic properties, with optimal content of fine mud solids (due to the absence of the build-up mud volumes), and with the use of colmatant and weighting agent.

The use of modified composition of the lime-based mud provides the following unique characteristics:

  • Stable properties
  • Resistivity to acids
  • Minimal thickness of mud cake
  • High sedimentation stability
  • Reduced fluid-loss rates in fissured rocks
  • Thermal stability, >200 degrees


  • 22 october, 2015

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LIMEX - freshwater heavy-weight system