Surfactant & Cleaning Agent
Clean State, Strong Bonds
Surfactant & Cleaning Agent
Water Wetting of the Walls Avoid Cement Bonding Issues
It has been discovered that the use of surfactant in the spacer fluid, the cement slurry, or both, may aid in avoiding the cement bonding issues resulting from residual oil-based drilling fluids on surfaces contacted by the cement slurry. The surfactant may increase water wettability of surfaces such as the tubular or well bore wall, enhancing the bond with the water-based cement slurry.
It is believed that using a surfactant in both the spacer fluid and the cement slurry will promote the water wettability of the encountered surfaces in a synergistic manner.
Cementing Surfactant Chemicals
The use of DOSAS surfactants in the cement slurry and spacer fluid not only enhances wettability by the utilization of more total surfactant, but may also improve cementing by not substantially changing the surfactant composition of the cement slurry through intermixing with the spacer fluid.
