Liner Hanger Manufacturer | Hydraulic & Mechanical | Maximus OIGA

A liner hanger is a downhole device that suspends a liner — a casing string that does not extend back to surface — from the inside wall of the previous casing. It is positioned at the top of the liner string, typically within about 300 feet (91 metres) of the bottom of the previous casing shoe. Its three functions are to transfer liner weight to the host casing, seal the annulus (together with a liner top packer above), and provide a stable base against which the liner is cemented. API Spec 19LH defines two conventional activation types: mechanical-set, operated by manipulating the running-in string, and hydraulic-set, activated by pressure. A polished bore receptacle above the hanger enables future tie-back to surface.

Hydraulic-set hangers are preferred for horizontal, extended-reach, and highly deviated wells where workstring rotation or manipulation is impractical. Setting is initiated by dropping a ball onto the landing collar and pressurising the string to shear the setting piston pins. Maximus OIGA’s hydraulic line includes SpectraMax Dual Cone, SpectraMax Pocket Slip, Quartus Liberty, Quartus QHH, and the Quartus RLH rotating variant. Mechanical-set hangers are the efficient choice for vertical and moderately deviated wells, with a J-slot disengaged by running-string rotation before the liner is lowered to engage the cone against the slips. Maximus OIGA’s mechanical line is the Quartus MSL, with a dual-cone variant for extra bypass area. The choice hinges on deviation angle, workstring capability, solids handling, and liner weight.

Maximus OIGA holds API Q1 — the American Petroleum Institute quality management system for oilfield equipment manufacturers — and ISO 9001 for quality management systems. Product design conforms to API Spec 19LH (2019), the governing standard for conventional and expandable liner hanger equipment, which defines activation type, quality grade, and validation grade. Every shipment is accompanied by material traceability documents, inspection reports, and test certificates consistent with API Q1 requirements. For the integrated Magnus QLH liner hanger-packer combo, the packer sub-assembly references the API 11D1 packer standard and its companion ISO 14310 language — these apply to the packer element, not to the hanger itself.

The running tool delivers the liner string to setting depth. A setting ball is then dropped from surface and lands on the landing collar seat. Pressure applied above the seated ball shears the setting piston pins, which drives the slips up and around the cone — the slips bite outward against the casing wall and the hanger is set. Additional pressure shears the landing collar pins to release the ball, restoring circulation for the cement job. The running tool is released from the liner, cement is pumped (for cemented liners), and the liner top packer is set above. Maximus OIGA supplies the complete pressure-activation chain — Hydro Trip Pressure Sub, hydraulic landing collars with or without ball catcher, and matched setting sleeves.

A complete system centres on the liner hanger itself — hydraulic-set, mechanical-set, or rotating — and includes a liner top packer or integrated Magnus QLH hanger-packer combo for the annular seal, a setting sleeve (MSS N non-rotating, or MSS RH / RH1 rotating hydraulic) for stable connection during running, a polished bore receptacle for future tie-back, and the running and hydraulic setting tools that deliver and activate the assembly. Cement placement is controlled by a hydraulic landing collar with or without ball catcher, casing / liner / drill wiper plugs, and a four-plug cementing system. Ancillaries include the debris junk screen, clean-out blade mill, tie-back seal nipple, and retrievable pack-off bushing. Maximus OIGA supplies the system as a package, backed by in-house qualification testing and engineering consultation.