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
 |
Wellhead Christmas Tree | What Is Xmas Tree Oil and Gas The xmas tree wellheadis a wellhead device used to extract oil from wells and machine wells. It is the main equipmen... |
 |
Casing Head | Casing headis a kind of new product which is designed according to customers' requirements and applied in all deep wells and completion operation. ... |
 |
Cementing Plug | Saigao Rubber plug used to separate the cement slurry from other fluids, reducing contamination and maintaining predictable slurry performance. Two... |
 |
LL-F Type Reverse Circulating Junk Basket | LLF type reverse circulating junk basketis designed to remove all types of small junks such as bit cones, cutters and hand tools from the bottom of... |
 |
MUD PUMP | Mud Pump is also a popular concept of a wide range of pumps. Different regions, habits, and ultimately the pump type will not be the same. The mud ... |
Same products
 |
2be4 400 Liquid Ring Vacuum Pump | Seller: Greentech International (Zhangqiu) Co., Ltd | The main characteristics of 2BE4 series products:· The tolerance, corrosive status, and th... |
 |
2be4 670 Liquid Ring Vacuum Pump | Seller: Greentech International (Zhangqiu) Co., Ltd | The application range and characteristics:2BE4 series water ring vacuum pumps and compressors are... |
 |
Choosing Reliable Equipment for Industrial Cleaning | Seller: Taizhou Feike Mechanical Technology Co., Ltd. | FEIKE High Pressure Washer is designed for industrial cleaning, vehicle washing, equipment mainte... |
 |
Water Ring Vacuum Pump 2BE1 403 | Seller: Greentech International (Zhangqiu) Co., Ltd | Application scope and characteristics:Greentech International (Zhangqiu) Co., Ltd is the professi... |
 |
Precision Engineering for High Pressure Spray Systems | Seller: Jinhua Shuangding Machinery Co., Ltd. | The High Pressure Diaphragm Pump for Sprayers is designed for agricultural spraying systems, crop... |
