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Encapsulated Tubing

FEP Encapsulated Hydraulic Control Line Seamless Duplex 2507 Tubing

MEILONG offers a range of industry standard tubing encapsulated in a variety of materials, such as polyurethane, polyethylene and polypropylene. The specified tubing material within these encapsulations is available in a range of sizes and colors for a variety of applications.

Down hole tubes
Subsea umbilical’s
Process constructions
General control system
Steam supply lines
Gas transport lines
Instrumentation

Features of Encapsulated Control Line:
Maximize protection of downhole line
Increase crush resistance during installation
Protect control line against abrasion and pinching
Eliminate long term stress corrosion failure of control line
Improve clamping profile
Single or multiple encapsulation for ease of running and added protection

Encapsulation Materials:
Polypropylene -25C to 150C Good resistance to brines
Santoprene -30C to 150C Good resistance to brines
Nylon 11 -60C to 135C Good resistance to hydrocarbons, good abrasion resistance
PVDF -30C to 150C Good resistance to brines and hydrocarbons, good abrasion resistance
FEP -110C to 200C Good resistance to brines and hydrocarbons

Round Profiles of Single Control Line Encapsulation:
1/4’’ OD line tubing 0.433’’ Dia (11.0 mm)
3/8’’ OD line tubing 0.535’’ Dia (13.6 mm)
1/2’’ OD line tubing 0.660’’ Dia (16.8 mm)

Square Profiles of Single Control Line Encapsulation:
1/4’’ OD line tubing 0.433’’ x 0.433’’ (11.0 mm x 11.0 mm)
3/8’’ OD line tubing 0.535’’ x 0.535’’ (13.6 mm x 13.6 mm)
1/2’’ OD line tubing 0.660’’ x 0.660’’ (16.8 mm x 16.8 mm)
Other sizes on request

Available Alloy Grades for Control Line Tubing Inside Encapsulation
Austenitic: 316L
Duplex: S31803/S32205
S32750
Nickel alloy: N08825
N06625


Coiled Alloy Tubing Features
Close dimensional tolerances
Enhanced mechanical properties
Superior surface finish
High cleanness of inside surface
Controlled ovality, eccentricity

Coiled Tubing Process
TIG welded and cold drawn
Seamless and cold drawn

Coiled Tubing Dimension
Outside Diameter: 1/8’’ to 1-3/4’’ (3.175 mm to 44.45 mm)
Coiled tubing length: up to 32,808 feet (10,000 m)
Tubing with minimum orbital welds reduces the risk of leakages when connecting tubes, and suitable for delivery for customers need.
Single coiled tubing is available
The tubes are delivered with plastic caps for protection from potential contamination during storage.

Packing
Coiled tubing is level wound on the spool/reel
Metal reels and marking can be specified by the customer

MEILONG offers a range of industry standard tubing encapsulated in a variety of materials, such as polyurethane, polyethylene and polypropylene. The specified tubing material within these encapsulations is available in a range of sizes and colors for a variety of applications.

 

Down hole tubes

Subsea umbilical’s

Process constructions

General control system

Steam supply lines

Gas transport lines

Instrumentation

 

Features of Encapsulated Control Line:

Maximize protection of downhole line

Increase crush resistance during installation

Protect control line against abrasion and pinching

Eliminate long term stress corrosion failure of control line

Improve clamping profile

Single or multiple encapsulation for ease of running and added protection

 

Encapsulation Materials:

Polypropylene

-25C to 150C

Good resistance to brines

Santoprene

-30C to 150C

Good resistance to brines

Nylon 11

-60C to 135C

Good resistance to hydrocarbons, good   abrasion resistance

PVDF

-30C to 150C

Good resistance to brines and hydrocarbons,   good abrasion resistance

FEP

-110C to 200C

Good resistance to brines and hydrocarbons

 

Round Profiles of Single Control Line Encapsulation:

1/4’’ OD line tubing

0.433’’ Dia (11.0 mm)

3/8’’ OD line tubing

0.535’’ Dia (13.6 mm)

1/2’’ OD line tubing

0.660’’ Dia (16.8 mm)

 

Square Profiles of Single Control Line Encapsulation:

1/4’’ OD line tubing

0.433’’ x 0.433’’ (11.0 mm x 11.0 mm)

3/8’’ OD line tubing

0.535’’ x 0.535’’ (13.6 mm x 13.6 mm)

1/2’’ OD line tubing

0.660’’ x 0.660’’ (16.8 mm x 16.8 mm)

Other sizes on request

 

Available Alloy Grades for Control Line Tubing Inside Encapsulation

Austenitic:

316L

Duplex:

S31803/S32205

S32750

Nickel alloy:

N08825

N06625

 

 

Coiled Alloy Tubing Features

Close dimensional tolerances

Enhanced mechanical properties

Superior surface finish

High cleanness of inside surface

Controlled ovality, eccentricity

 

Coiled Tubing Process

TIG welded and cold drawn

Seamless and cold drawn

 

Coiled Tubing Dimension

Outside Diameter: 1/8’’ to 1-3/4’’ (3.175 mm to 44.45 mm)

Coiled tubing length: up to 32,808 feet (10,000 m)

Tubing with minimum orbital welds reduces the risk of leakages when connecting tubes, and suitable for delivery for customers need.

Single coiled tubing is available

The tubes are delivered with plastic caps for protection from potential contamination during storage.

 

Packing

Coiled tubing is level wound on the spool/reel

Metal reels and marking can be specified by the customer


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