CHIMERA Heli-Mag™

The CHIMERA Heli-Mag™ is a heavy-duty wellbore clean-up tool designed to capture ferrous metal debris in downhole environments. It features 16 rows of magnets arranged along helically twisted ribs, creating a debris trap that maximizes magnet exposure and encourages fluid flow between the ribs. The magnetic inserts are securely held in tongued grooves to prevent them from coming loose downhole.

The tool can be run independently or as part of a comprehensive wellbore clean-up bottom hole assembly (BHA), typically positioned above casing scrapers and brushes to complement their hard scraping action. It is centered in the casing by two non-rotating centralizers, which guide the tool and allow for extended rotation without wearing the casing.

The CHIMERA Heli-Mag™ incorporates non-rotating sleeves mounted on alloy bronze bearings with both axial and radial elements. This design enables extended rotation in harsh environments while preventing tool and casing wear. As well fluid passes along channels between the magnetized ribs, ferrous debris is captured and retained.

The tool's robust design, non-rotating centralizers, and large debris capacity make it efficient for various applications, including pre-completion wellbore clean-up, workovers, sidetracking, abandonment, and drilling or milling cement plugs. It is available with all API and premium drill pipe connections and can be easily cleaned at the surface for reuse.