Cementing Products

Gas Migration Control Additives

GasLock 801

GasLock 801 is a specially formulated synthetic polymer with superior capabilities in gas migration control and fluid loss control. It adsorbs on the surface of the particles in cement slurry to reduces fluid loss from the cement slurry and prevent annular gas migration into the cement. GasLock 801 is available in solid form (GasLock 801S) and liquid form (GasLock 801L).


Application:

GasLock 801 can be used to help prevent gas migration for wells with moderate flow potentials from 60°F to 230°F. It delays the static gel strength of the cement and provides enhanced fluid loss control.


Advantages:

  • Provides superior gas migration control.
  • Provides enhanced fluid loss control.
  • Effective and economical.
  • Compatible with other cementing additives.
  • Compatible with high salt systems.
  • Low effect on thickening time.

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Premium Biopolymers

CWLG Welan Gum

CWLG Welan Gum is multifunctional biopolymer produced by fermentation of sugar by bacteria of the genus Alcaligenes. The molecule consists of repeating tetrasaccharide units with single branches of L-mannose or L-rhamnose. Stable over a wide range of temperature and pH, CWLG Welan Gum has superior functionality in various oilfield applications.


Application:

CWLG Welan Gum thickens, suspends, and stabilizes water-based systems while imparting excellent rheological control. In cementing application, CWLG Welan Gum can be used to enhance water retention and improve stability.


Advantages:

  • Excellent thermal stability.
  • Superior shear-thinning property.
  • Releases viscosity rapidly in water.
  • Stable over a wide range of pH and temperature.
  • Compatible with high calcium environments.

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