HXX MILLING SHOE
Used to clean the inner surface of the PBR so that the tie-back assembly can easily insert and effective seal can be achieved. Features: 1. The cutting ribs can remove the cement and other shreds thorough without damaging the inner surface of PBR. 2. Featuring cone profile and curve transition, it can easily enter PBR.
POLISHED BORE RECEPTACLE
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.
HC-D TIE-BACK SEAL NIPPLE WITH PACKER
Features： 1. It has the functions of tieback and packoff, simple structure, easy to use. 2. Packer can offset the failing sealing happens when tie-back seal nipple trial stab. 3. The tieback seal nipple with packer has double sealing system of two groups of V-seals and a group of rubber sleeves. The sealing area is bigger, the sealing capability is better and reliable, and suitable for higher pressure oil & gas wells. 4. Permanent pack off is achieved after the packer is weight set. 5. Designed with latching device, neither picking up nor slacking off the drill string can retrieve the packer once the packer is set.
TIE-BACK SEAL NIPPLE
The tie-back seal nipple is a special cementing device for tieback liner operation. Features： 1. Designed with the guide shoe and circulate bore, it can stab into PBR before cementing, avoid trouble happens when common tie-back seal nipple stab into PBR after cementing. 2. With its streamline shape, the guide shoe can stab into PBR smoothly. 3. Groups of high temperature resistance and corrosion resistance seals provide effective sealing. Effective sealing length is 1.2m.
The landing collar comprise housing, latch seat and ball seat. The latch seat holds ball seat by pins. After the hanger is set, pressure is applied to release the ball seat. Features： 1. The combination of pump down plug and liner wiper plug latches and seals with latch seat, which can hold back pressure. 2. The internal parts are made of easily drillable materials.
The Sealing Assembly, comprises housing and pack off bushing, is used to seal the annular clearance between polished nipple and liner hanger body so as to build pressure after the ball reaches the landing collar. The top end connects PBR and the internal left-hand thread connects setting tool. Features： 1. The pack off bushing can be retrieved with setting tool, saving time to drill out. 2. “W” sealing rings are used to obtain two-sides sealing function. The sealing effect is better and it’s sealing capacity is more than 25MPa. 3. With centralizing block on body, makes the hanger in the center of wellbore.
LINER WIPER PLUG
The Liner Wiper Plug is shear-pinned on the bottom of the setting tool, used to wipe liner. After bumping and latching in landing collar when joining with pump down plug, it can hold back pressure.
PUMP DOWN PLUG
The Pump down Plug has four rubber wipers of different sizes and a guide nose, used to wipe the drill pipe string and setting tool. It performs great even in highly-deviated and horizontal wells. The pump down plug is designed to wipe liner and bump in landing collar after running to setting tool and joining with liner wiper plug.
SETTING TOOL OF HYDRAULIC LINER HANGER
The setting tool connects with sealing assembly by left hand thread, used to set liner hanger to the designed set position. After setting, right hand rotation to separate setting tool and liner hanger and take back after cementing progress finished. Model A setting tool works with DYX-A/SYX-A/SSX-A/J-A/JRKN-A liner hanger, and Model B setting tool works with SYX-AF liner hanger. Features： 1. Designed with thrust bearing and supporting sleeve, no tension and pressure acts on nut, ensure easily release. 2. A long polished nipple helps to judge if the left-hand thread ware released or not. 3. With remind-thread on lower end of lifting sub, the setting tool is convenient to disassemble and transport. 4. API drill pipe thread on top end of lifting sub, can connect with drill pipe directly.