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Drilling Fluid Additive solution

Retarder for Oil field Cementing Chemicals Additives

Release time:2023-10-30 Author:admin
Cement slurry retarders are chemical additives used in the oil and gas industry to extend the setting time of cement slurries.The setting time of cement slurries is crucial. If the slurry sets too quickly, it may not properly displace drilling fluids, leading to poor zonal isolation and potential well integrity issues. 

HUAXUAN technology cooperation offer a complete range of specialized high performance Cement Retarders for Oilfield applications 

Features:

  • Increases the setting time of concrete
  • Increases pumping time
  • Provides better flow properties
  • Slows the rate of setting of concrete
  • Improves the workability of concrete
  • Compatible with all oil well cements

Types of Retarders:

1. Lignosulfonates: These organic retarders are derived from wood pulp and are among the most widely used retarders in the industry. They work by adsorbing onto the surface of cement particles, hindering their interaction with water.

2. Citric Acid and Sodium Citrate: These retarders are effective at low temperatures and are often used in combination with other retarders to achieve desired setting time.

3. Phosphates: Phosphate-based retarders are often used in high-temperature applications where other retarders may be less effective.

4. Polyacrylates: Polyacrylate-based retarders are used when specific temperature and salinity conditions must be met.