Oil Well Cement Developed from Common Cement: Physical, Chemical and Mineral Characterization

Abstract

This study aims to characterize a new type of cement, produced from the mixture of common Portland cements, which could be used as an option in the cementing of oil wells. To enable this study a linear programming method was used for the composition of the new cement, then, characterization tests were performed through particle size analysis by laser diffraction, chemical analysis by EDX, thermogravimetric analysis, X-ray diffraction, setting time, compressive strength. The results allowed the conclusion that the new formulated cement presented low C3A content, time setting superior to the Portland Cement for Oil Well, thermal stability up to 500 °C, low hydration kinetics and content of the main components coherent to the ABNT specifications.

Cement Degradation Caused Risks for Geological Carbon Sequestration Reservoirs

“…Class G and H are the most commonly used. In contrast to ordinary Portland cement (OPC), OWC are better produced for higher compatibility with additives and better storage stability, to maintain the properties such as the ability to withstand high temperatures and pressures, and the resistance to corrosions (Oliveira et al, 2015). But the four basic chemical phases in OPC and OWC remain the same: Alite, Belite, Aluminate and Ferrite.…”