Innovative Redefinition of Well Cementing Utilizing Red Mud

Abstract

This research delves into the incorporation of red mud, a by-product of the aluminum manufacturing process, into the cementing of oil wells to bolster the sustainability efforts of the oil and gas sector. A variety of experimental techniques were utilized to mix cement slurries by combining Saudi Class G cement with red mud at a 90/10 ratio. The objective was to assess the viability of utilizing red mud as a sustainable substitute in cement mixtures while ensuring the quality of the final product. The investigation included a comprehensive analysis, adjustments to viscosifying agents, and the addition of retarder, all aimed at achieving a cement slurry with a density of 15.8 ppg. Rigorous evaluations were made on the slurry's rheological characteristics and thickening time. Initial findings suggested that mixtures solely composed of Saudi Class G cement and red mud fell short of industry standards. However, with the precise addition of retarders and viscosifiers, the slurry's performance was significantly improved, meeting the stringent requirements of oil well cementing. These results indicate that red mud can support environmentally sustainable cementing practices without sacrificing performance. Therefore, this study recommends red mud as a sustainable and responsible material for the oil and gas industry, promoting sustainability while maintaining the necessary performance attributes.