In the oil and gas industry, drilling is expensive, from the exploration phase through drilling and production to enhanced oil recovery. Therefore, it is important to maintain the integrity of the well till the end of the production phase. Cementing the wellbore during drilling helps to maintain the integrity of the well throughout its lifecycle. It is necessary to know the properties of the cement and the wellbore conditions before the cementing is done. Upon the addition of certain nanomaterial to the cement, the properties of the cement can be altered based on need. Use of nanotechnology in the cement slurry can help in achieving solutions to many problems that pertain to oil well cementation. This paper discusses the behavior of certain nanomaterials when added to cement at high temperatures and high pressures, and how the properties of cement are affected by the addition of these nanoparticles.