The importance and evolution of corrosion inhibitors in the drilling fluid for the offshore drilling industry

The fundamental process of drilling within the oil and gas industry appears straightforward, entailing the creation of a borehole that connects to the underlying oil reservoir. An indispensable component in this operation is the mud formulation, playing a critical role in lubricating the drill bit and facilitating the efficient removal of cuttings. However, a notable challenge arises due to the machinery’s predominantly metal composition, leading to corrosion concerns. Various strategies, including the application of corrosion inhibitors, have been introduced to address and manage this corrosion challenge. This review provides a comprehensive exploration of recent research endeavors focused on corrosion inhibitors in the context of offshore drilling operations. It aims to offer insights into the diverse types of corrosion commonly encountered during drilling activities in marine environments. Moreover, the review delves into an in-depth examination of various corrosion inhibitors utilized for mitigation, shedding light on their performance characteristics and limitations within the specific scope of drilling operations. By scrutinizing these corrosion inhibition strategies, the review contributes to a nuanced understanding of the evolving landscape in drilling technology and the measures taken to ensure the longevity and efficiency of drilling equipment.