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Tubing hanger

A tubing hanger is a component used in the completion of oil and gas production wells. It is attached to the topmost tubing joint in the wellhead to support the tubing string.

The tubing hanger is typically located in the tubing head, with both components incorporating a sealing system to ensure that the tubing conduit and annulus are hydraulically isolated.


​Facts and component characteristics

Typical material

  • Steel AISO/SAE 4130
  • Inconel 625 cladding
  • Solid Inconel 718

 

​Internal turning

​Machining challenges – internal machining
  • Productivity
  • Interrupted cut (cross hole)
  • Reduced tool life (interrupted cut)
  • Cladded Inconel 625
 
 
​Machining solution – internal turning – roughing & finishing 6xD

Material: Cladded Inconel 625

Product:
​Machining solution – internal turning – roughing and finishing 10xD

Material: Cladded Inconel 625

Product:
 

Customer values

Internal machining
  • Vibration- and trouble-free machining with Silent Tools™
  • Overcome problems with tool breakage and short tool life
  • Major time savings with Silent Tools

​External turning

Machining challenges – external machining
  • Productivity
  • Interrupted cut (over hole)
  • Reduced tool life (interrupted cut)
  • Cladded Inconel 625

Customer values

External machining
  • Productivity increase with over five times (turn milling method with ceramic vs. turning in interrupted cut)
​Machining operations – external machining
  • External turning
    • External turning – interrupted cut
    • External turn milling
 
 
Machining solution – external turning in F6NM

Material: Stainless steel F6NM

Product:
 
 
Machining solution – external turning in Inconel 625

Material: Cladded Inconel 625

Method: Turning

Conditions: Interrupted cut (machining over a hole)

Product:
 
 
Machining solution – external turn milling in Inconel 625

Material: Cladded Inconel 625

Method: Turn milling

Conditions: Turn milling over a hole

Product:
 
 

Roughing cross hole

Machining challenges – roughing cross hole
  • Productivity
  • Process security
  • Cladded Inconel 625
  • Uneven stock

Customer values

Circular ramping
  • Circular ramping with ceramics for higher productivity
Boring
  • Process security with round insert
  • Predictable process with long tool life
Machining operations – roughing cross hole in Inconel 625
  • Circular ramping with ceramic
  • Rough boring with DuoBore™ 820
 
 
Machining solution – Circular ramping of Inconel 625

Material: Cladded Inconel 625

Method: Circular ramping

Conditions: Milling cross hole

Product:
 
 
Machining solution – Rough boring

Material: Inconel 625 cladding

Method: Rough boring

Conditions:
  • Roughing
  • Diameter 140 mm (5.552 inch)
Product:
 

Customer values

Machining of cladded Inconel 625
  • Productive method
  • Secure process with circular ramping
  • Avoid interrupted cut (in turning method)

Customer value

Internal machining
  • Vibration- and trouble-free machining with Silent Tools™
  • Overcome problems with tool breakage and short tool life
  • Major time savings with Silent Tools
  • Chip control
External machining
  • Productivity increase with over five times (turn milling method with ceramic vs. turning in interrupted cut)
Boring
  • Process security with round insert
  • Predictable process with long tool life
Machining of cladded Inconel 625
  • Productive method
  • Secure process with circular ramping
  • Avoid interrupted cut (in turning method)
Circular ramping
  • Productivity
  • Ceramic
Machining challenges - cladded Inconel 625
  • Long overhang
  • Uneven stock
  • Vibration
  • Interrupted cut (turning)
  • Reduced tool life

 

Rough milling of cladded Inconel 625

Machining solution

Material: Steel AISO/SAE 4130 with Inconel 625 cladding

Method: Milling, helical interpolation

Product:

 

Helical interpolation

 

Customer values

  • Productive method
  • Secure process with helical milling
  • Avoid interrupted cut (in turning method)
Machining challenges - internal turning
  • Productivity
  • Long overhang
  • Vibration
  • Chip evacuation
  • Tool life
 
 
Machining solution 1 – roughing

Material: Cladded Inconel 625

Product:

Customer values

Internal machining
  • Vibration- and trouble-free machining with Silent Tool
  • Overcome problems with tool breakage and short tool life
  • Major time savings with Silent Tools
  • Chip control
Machining solution 1 – finishing

Material: Cladded Inconel 625

Product:
Machining solution 2 – roughing

Material: Cladded Inconel 625

Product:
 
 
Machining solution 2 - finishing

Material: Cladded Inconel 625

Product:

 
Machining challenges – threading and boring of holes
  • Risk for broken taps
  • Long overhang
  • Vibrations
  • Close tolerances

Machining operations

Machining solution – thread milling

Material: Steel AISI/SAE 4130

Thread: 1 ¼ inch 7UN-2B

Product:

Thread milling

Machining solution – rough boring

Material: Inconel 625

Condition: Hole size 38.23±0.13 mm (1.505±0.005 inch)

Product: Cutting data:
  • vc: 30 m/min (98 ft/min)
  • fn: 0.15 mm/rev (0.006 inch/rev)
  • ap: 0.3 mm (0.012 inch)

Rough boring

Customer values

Thread milling and boring
  • Secure thread milling process with CoroMill® 327 – no risk for broken taps
  • Productive boring with Silent Tools
  • High-precision fine boring with adjustable CoroBore® 825
Machining solution – finish boring

Material: Inconel 625

Condition: Hole size 32.56±0.05 mm (1.282±0.002 inch)

Product:

Finish boring


 
Machining challenges – external machining
  • Productivity
  • Interrupted cut (over hole)
  • Reduced tool life (interrupted cut)
Machining solution – external turning in AISI/SAE 4130

Material: AISI/SAE 4130

Product:

External turning in AISI/SAE 4130

Machining solution – external turning in Inconel 625

Material: Cladded Inconel 625

Method: Turning

Conditions: Interrupted cut (machining over a hole)

Product:

External turning in Inconel 625

Machining solution – external turn milling in Inconel 625

Material: Cladded Inconel 625

Method: Turn milling

Conditions: Turn milling over a hole

Product:

External turn milling in Inconel 625

Customer values

  • Productivity increase over five times (turn milling method vs. turning in interrupted cut)
 
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