Abstract
The primary focus in designing a cement slurry for wellbore cementing is to ensure its strength and long-term integrity. To obtain high-strength cement-based materials, the influence of basalt fiber as a reinforcement was studied to create a cement slurry with high compressive and flexural strength. Deformation of the cement under loading was also investigated during the testing process. For the study, a cement plug was created using Portland cement with a water-cement ratio of 0.5. Different concentrations of basalt fiber (0.1%, 0.5%, 1%, and 2%) were added to the mix. Strength tests were carried out on the cement stone samples after 2, 7, and 14 days. The results showed that reinforcing the cement with basalt fiber significantly improved both its strength properties and plasticity. The addition of fiber led to an 11% increase in both compressive and flexural strength. Among the different fiber concentrations tested, 0.5% basalt fiber yielded the most successful outcomes, providing the highest strength characteristics for the cement stone while preserving its fluidity as a cement slurry. These findings offer valuable insights for the practical use of basalt fiber-reinforced cement slurry in constructing oil and gas wells, ensuring their durability and long-term performance.