Our high strength alloy cylinder provides maximum burst and collapse rating to liner hanger. Hydraulic rotating liner hanger pocket-slip liner hanger has a unique compact design for horizontal wells. The hanger is equipped with premium O-rings and glass-filled Teflon backup rings to seal in the hydraulic cylinder. Premium Teflon seals for high temperature/pressure applications. Slips are manufactured to hardness of 57-64 Rockwell “C” scale for use in the highest grade casing strings. Body is manufactured from mechanical tubing to equivalent grade of liner 110,000 psi yield strengths is standard. Other yield strengths and materials available on request. Some of our Liner hanger types and their running tools are mentioned below:
The Clean Out Mill assembly is used to clean the excess cement from the tie back receptacle after the cement job is performed. This is to prevent seal damage for and allow for good sealing of the seal stem run in thereafter. The POLISH Mill is designed with metal blade, which measure 1/16’’ less than the I.D of the TBR sleeve. It has an REG pin up and 2-7/8’’ REG 3-1/2’’ REG or 4-1/2’’ REG down depending on the size.
The Top Dress Mill has a tungsten carbide NO-go which dresses off the TBR top very effectively. It has 4-1/2’’ regular Pin x Box connections. All parts are made of AISI 4140 ht high tensile material for heavy duty. The Polish / Dress Mill assembly is normally spaced out and made up in the Gradwell Workshop