Used with tie-back seal nipple, it can tieback the liner to the top of well and achieve effective sealing with tie-back seal nipple. Features: 1. The top end is like horn mouth for easy entry. 2. High quality finishment on inner seaface for optimum sealing property. 3. Corrosion resistance after special treatment. 4. Various lengths are available depends on request. Features: 1. Be set hydraulically, suitable for shallow and medium-depth wells. 2. The dual-cone and dual-cylinder structure allows higher hanging capacity and higher hanger setting success ratio. Liner weight is distributed onto the internal wall of the previous casing more evenly. 3. Working with ball-setting carrier, suitable for horizontal and highly-deviated wells. 4. Sealing element is made from nitrile/fluorine rubber, rating temperature 120 /200 . 5. Main parts are made with high-strength alloy steel providing high burst/collapse resistance. 6. Setting tool can be easily released just by slacking off certain weight and using right hand rotation. 7. Retrievable pack-off bushing can be retrieved with settling tool, avoid drilling-out.
