Hydraulic Liner Hanger Tie-Back Assembly
The tie-back assembly is a special cementing tool for tieback operation.
Tieback equipment allows existing liners with a receptacle to be extended to the surface or farther up hole, and provides a high-pressure seal at the top of a cemented or uncemented liner. TIW offers variety of tieback seal nipples and tieback packers to accommodate liner top extension and remedial operations.
Tieback Procedures of Hydraulic Liner Hanger Tie-Back Assembly
Measure and drift the casings carefully and clean all the threads.
Calculate the kelly-up of the casing (the particular part of the last casing which is above the rotary table) and arrange the casing string.
Prepare several casings, which are approximately 0.5m shorter than the others and convenient for kelly-up calibration. (The actual kelly-up is not equal to the calculated value due to measurement error and the remaining threads of the casings.)
Connect the milling shoe and trip in. Polish the inner surface of the polished bore receptacle, make sure there is no debris.
Note the depth of the milling shoe when it reaches the top of the seal assembly (judge from the changes on pressure and WOB). Then lift the drill string for 1m.
Use a drilling rate of 40～50rpm and a normal flow rate. Slowly lower the drill string. Polish the inner surface of the polished bore receptacle twice or three times. Each time polish 3～4min. During the last polishing, apply an additional load of 2～3t when the torque suddenly increases (the milling shoe reaches the top of the seal assembly) during the last polishing. Polish for another 2~3min and note the depth of the milling shoe, which is an important clue for the casing setting depth.
Circulate with high flow rate for 5min.
Trip out and check the milling shoe. If there is a circle of polished trace and the diameter is equal to the I.D. of the left thread on the seal assembly, then the milling shoe have reached the bottom of the polished bore receptacle.
Features ofHydraulic Liner Hanger Tie-Back Assembly
With the guide shoe and circulate bore, it can stab into polished bore receptacle before cementing, more convenient than conventional cementing which pumps down cement before stabbing.
With its streamline shape, the guide shoe can stab into polished bore receptacle easily.
The Tieback Seal Assembly with three stacks of molyglass seal is designed for high-pressure and high-temperature liner tieback completions. Available in seal length is 1.2m.
Technical Parameters ofHydraulic Liner Hanger Tie-Back Assembly
|
Specifications, mm |
Φ177.8 |
Φ127.0 |
|
Sealing capacity, MPa |
25 |
25 |
|
Heat-proof Rating, ℃ |
120 |
120 |
|
Available Sealing Length, mm |
1200 |
1200 |
|
Φ155 |
Φ108 |
SAIGAO GROUPis one of professional oil equipment suppliers. We provide Fishing Tools, Mud Pump Parts, tie back receptacle, tie back cementing, tie back casing, liner hanger assembly, hydraulic hanger, casing tie back, tie back linerand so on. Want to know about tie back liner procedure? Please contact us.
Send product request
Other supplier products
 |
Cement Basket | Cement basket drillingconsists of flexible steel spring bow welded to slip-on collars. Bows are hardened and tempered for maximum strength and unif... |
 |
F1600 Triplex Piston Mud Pump | The pump has features of advanced structure, small volume, reliable operation, easy maintenance. The cylinder is made of alloy steel forgings, a... |
 |
LINER HANGER | The liner cementing is realized by the liner hanger, which reduces the casing weight of the first well in the deep well, improves the load of the r... |
 |
Multiple Orifice Choke Valve | Multiple Orifice Choke Valve Orifice choke valve adopts a rotating fork, generally speaking, orifice choke valve only need 90° or 180° rot... |
 |
F500 Single-acting Mud Pump | F500 single-acting drilling rig small mud pumpequipment has two surfaces which can bear high strength to ensure high efficiency of the operation. S... |
Same products
 |
China made Guide vane sleeve HPT for power generation | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "China made Guide vane sleeve HPT for power generationThe use of advanced technology, absolutely ... |
 |
China supply Guide vane DG for | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "China supply Guide vane DG for turbine generator Deyang YOYIK skill is strong, the production of... |
 |
LEFOO AIR COMPRESSOR CUT OFF SWITCH | Seller: LEFOO INDUSTRIAL CO.,LTD. | Air Compressor Cut Off Switch Pressure Range: 15~60psi / 40~250psi / 400~500 psi Stable and acc... |
 |
Lefoo 115VAC RO Diaphragm Booster Pump | Seller: LEFOO INDUSTRIAL CO.,LTD. | Low vibration and low noise, self-priming and stable pressure feeding, LEFOO 115VAC RO Diaphragm ... |
 |
LEFOO BRUSHLESS RO BOOSTER PUMP | Seller: LEFOO INDUSTRIAL CO.,LTD. | This brushless RO booster pump series is powered by a permanent magnet brushless motor, 0.5/0.7 M... |
