Effect of Oil and Pipe on Calcium Carbonate Scaling in Oilfield: Based on Molecular Dynamics Simulation

Due to the complex nature of Calcium carbonate scaling mechanisms in oilfields, different experiments have yielded conflicting results. This paper aims to elucidate the molecular-level mechanism of Calcium carbonate scaling in oilfields by investigating the effects of temperature, tubing, and asphaltene. The findings of the molecular dynamics study indicate that Calcium carbonate formation tends to occur at a critical temperature. Additionally, asphaltene present in oilfields tends to enhance Calcium carbonate formation. Furthermore, the degree of Calcium carbonate scaling decreases on Fe (110) and Ni (111) surfaces, offering theoretical insights into addressing Calcium carbonate scaling in complex oilfield environments.