An integral Swivel Sub situated either above or below the rollers prevents any lateral friction occurring from rotational torque generated between the Roller Subs as they are conveyed into and out of a well. The LiMARĀ® design is short and compact with six roller wheels per assembly - each offset at 60 degrees to each other. Particularly in highly deviated wells friction occurs between the full contact area of the toolstring and the tubing wall. The roller wheels rotate freely on hardened axles to reduce friction.
TOOL APPLICATIONS:
For use in high angle, deviated wells with integral swivel function to enable a toolstring to rotate freely under load to prevent torque build-up in the wireline
Ideal for tool centralisation within larger ID tubing
DESIGN FEATURES & BENEFITS:
Short, compact design
Integral upper and lower swivel section options
Contingent fish necks on lower components to enable recovery
Available in a range of sizes to suit all completion designs
Hardened axles and wheels with replaceable bushings
Connection options to suit customer requirements
Selected components QPQ treated
Hexagonal flats for safe make-up & break-out
Assembly Part No. Nominal OD Effective Roller OD Fish Neck Connection
1027-1250-XXXX-X-XXX-RX 1.250" Optional 1.187" Optional
1027-1500-XXXX-X-XXX-RX 1.500" Optional 1.375" Optional
1027-1875-XXXX-X-XXX-RX 1.875" Optional 1.750" Optional
1027-2500-XXXX-X-XXX-RX 2.500" Optional 2.313" Optional