• Oil & Gas Industry Additives for Cementing

TBP (Tributyl Phosphate)

• TBP, or Tributyl phosphate, is a defoaming agent commonly used in oil well and gas cementing applications. During cementing, air or gas may become trapped in the cement slurry, forming foam. This can lead to problems such as poor cement quality and reduced bond strength between the casing and formation.

  TBP is added to the cement slurry to reduce the surface tension of the foam, allowing the trapped gas to escape more easily and preventing foam formation. This helps improve the cement job’s quality and ensures better bonding between the casing and formation.

  In addition to its defoaming properties, TBP can also act as a retarder, extending the setting time of the cement slurry and allowing it to be placed more quickly in the wellbore. TBP is also relatively inexpensive and readily available, making it a popular choice for oil well and gas cementing applications.