Development of Magnetic Anti-Scale Accessories from Research to Field Solution

Scaling is a significant problem in many industries, especially concerning flow assurance in pipelines and equipment used for oil extraction. This issue is highly prevalent in the oil and gas industry, often requiring well interventions that, in severe cases, can lead to operational shutdowns, production interruptions, and consequently significant costs. Scale formation occurs due to the progressive accumulation of particulate matter on the interior surfaces of process pipelines. This process begins when the fluid within the pipeline reaches a state of supersaturation with ions, leading to their adhesion to the pipe walls. These ions then interact electrostatically, creating initial crystal structures that propagate the development scale. Inside pipelines, this process often starts at surface imperfections. The formation of the first scale crystal accelerates the process because the initial deposit roughens the surface, attracting more particles with opposite charges. Figure 1 shows this mechanism, with a schematic representation of the scaling process at three different times (t1, t2, and t3). Conventional methods for scale prevention typically involve the ongoing introduction of chemical agents, many of which are expensive, have detrimental environmental effects, and often provide limited efficacy. Consequently, alternative scale prevention methods have been investigated. One such method involves employing magnetic devices, which present a passive solution to mitigate this issue.