The TIW® LG Liner Extension Assembly allows an existing liner to be extended up
hole as far as necessary. The assembly is run with the seal nipple at the bottom of the
line extension casing and the orifice collar run one joint above the seal nipple. As the
seal is engaged in the receptacle this prevents hydraulic blockage and allows the liner
extension to fill at a predetermined rate as it is run. The orifice collar also serves as a
stopper for the cement plug.