Recent advances in polymers as additives for wellbore cementing applications: A review

Evaluation of a water-based spacer fluid with additives for mud removal in well cementing operations

“…The composition ratio of the additives used in spacers plays a vital role in achieving the desired properties in the fluids. However, cement contamination by other fluids is a significant challenge that reduces the success rate of the cementing operation [ 4 ]. To address this challenge, in a recent study, Bois et al [ 5 ] have developed new spacer fluids, such as foam-based and insulating spacer fluids, to remove drilling fluids and reduce filter cakes.…”

Functional Gels and Chemicals Used in Oil and Gas Drilling Engineering: A Status and Prospective

“…Functional chemicals are employed in cementing operations to improve cement slurry properties, enhance zonal isolation, and mitigate potential issues such as gas migration and casing corrosion. Changes in downhole temperature and pressure can alter the filter cake during the cementing of oil and gas wells [7]. Moreover, volume contraction of the cementite can result in the emergence of micro-annular gaps at the diaphragm interface, which can form a pathway for downhole formation fluids to escape.…”