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. Today, some new types of drilling liner tieback equipment are developed due to the annular gas channeling in high-pressure oil-gas well even after tie back cementing.
Tie back liner procedureof 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 of Hydraulic 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.
As one of the top reliable liner hanger companies in China, Saigao has been devoted in the production of hydraulic liner hanger products. Drop us messages for any query to know more about Saigao and Saigao products.
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 |
,
As one of the most professional oil well equipment manufacturers, Saigao Groupprovides oilfield cementing tools, tie back receptacle, tie back casing, liner hanger assembly, hydraulic hangercasing tie back, tie back liner and etc. Saigao products are not only popular in China, but also exported to Russia, Brazil, Australia, South Africa and other countries and regions.
Send product request
Other supplier products
 |
Non-Rotational Cement Float Collar | Non-Rotational Cement Float Collar SAIGAO GROUPCement/Plunger-type float equipment offers dependable performance for all classes of oil and gas we... |
 |
Wear Sub | During saver sub drillingoperation, major wear and tear wear often take place between drill pipes and casings. Wear sub is used to avoid the wear b... |
 |
BW1500/12 Horizontal Four Cylinder Reciprocating Single Acting Piston Pump | Four 1500/12 mud pump is horizontal four cylinder reciprocation single acting piston pump. It is widely used in mining, drilling, coal, railway, h... |
 |
Tubing Pup Joint and Crossover | Tubing: A pipe used in oil wells for oil recovery, gas production, water injection, and acid fracturing. Casing: A pipe that has been drilled in... |
 |
SYX-A Hydraulic Liner Hanger | As one of the oil equipment suppliers, Saigao Groupspecializing in design, research, and development, processing, and manufacturing. sales and expo... |
Same products
 |
DM-16BF DM-18BF New cover Electric Sprayer | Seller: Zhejiang Huaqi Information Technology Co., LTD | The Electric Knapsack Sprayer is a game-changer in the field of agricultural pest control. Engine... |
 |
Simple Round Breeding Cage | Seller: Zhejiang Huaqi Information Technology Co., LTD | The Simple Round Breeding Cage features a durable and lightweight construction, making it suitabl... |
 |
Syria-liquid nitrogen container for cell storage-liquid nitrogen level gauge | Seller: Henan Tianzhidao Biological Technology Co., Ltd | Precise experimental conditions and safe sample storage are key elements for the smooth developme... |
 |
Italy-liquid nitrogen cell storage tank-liquid nitrogen tank level indicator | Seller: Henan Tianchi Instrument & Equipment Co., Ltd. | Precise experimental conditions and safe sample storage are key elements for the smooth developme... |
 |
Egypt-cryogenic cell storage-liquid nitrogen level monitors | Seller: Henan Tianzhidao Biological Technology Co., Ltd. | Precise experimental conditions and safe sample storage are key elements for the smooth developme... |
