Control Lines Tubing

Control Lines are widely used in many applications in the field of downhole and subsea. Younglee manufactures high quality control lines / control line tubing in stainless steels and nickel alloys.

Control Lines Brief Introduction

Control lines usually are coiled tubes made of stainless steel, duplex stainless steel or nickle alloys. The coiled tubes mostly are welded & redrawn tubes or seamless cold drawn tubes. Control lines are usually supplied with very long continuous lengths coiled on the drums.

Control lines are broadly applied in many applications, such as below: 

• Downhole hydraulic control lines
• Downhole chemical control lines
• Subsea control lines for hydraulic power and chemical injection line
• Flowline control
• Instrumentation tubing
• Smooth inner surface control line tubing used in fibre optic applications
• Others

Control Lines Size Range

As one of the leading China control line manufacturer, Younglee produces full range of the popular control line sizes. Our control line tubing can be supplied in metric size and imperial size.

• Outer Diameter (OD): 3 mm (0.118”) to 25.4 mm (1.00”) 
• Wall Thickness (WT):  0.5mm (0.020”) to 3mm (0.118”)
• OD tolerance +/- 0.005” (0.13mm) , other tolerances are available on request
• WT tolerance +/- 10%, other tolerances are available on request
• Tubing Coil lengths up to 6,000m (20,000ft) without orbital joints depending on product dimensions and its form (seamless tube or welded tube).
• Coil lengths up to 13,500m (45,000ft) with orbital joints

The most popular size of control lines are: 1/4″ control line, 3/8″ control line, 1/2″ control lines, 5/8″ control line tubes, 3/4″ control line tubing.

Control line materials

As the professional manufacturer of control lines, we produce control line tubing in material stainless steel 316L, duplex stainless steel 2205, 2507, Nickel alloy 825 & alloy 625.
Besides the above, we also make control line tubes with other materials upon customers’ request.

Control line tubing materials Chemical Composition

Control line tube materials Mechanical Properties

Control line material Corrosion Resistant Properties

Control Line Tube Manufacturing Forms

As the professional manufacturer of control lines, Younglee makes long coils of control line tubing in three main forms as below:

• Seamless Tube – a billet of round bar is extruded or hot piercing into a tube and then cold rolled and drawn to final size.
• Welded and re-drawn Tube – a strip of metal is formed and being welded to a tube, then the tube is drawn through a mold to remove (homogenize) the weld seam. Some customers also call this type “seamless”.
• Welded and floating plug drawn – the weld tube is drawn through a mold with a floating plug in the bore to rework the weld seam internally and externally.

For more details on quality considerations, the advantages of redrawing welded tubes, and pressure calculations, please contact us for the control line datasheet.

Control Line Packing standards

• Control line tubes can be supplied as encapsulated, PVC coated or bare line tubing
• Control line tubes are supplied in Coil wound on wooden drum or spool.
• Coils wound on customer-specific metal reels

As one of the leading China control line tube factory, Younglee’s control line is widely supplied to customer domestic and abroad. Our control line tubes are exported to many customers in the oil and gas field in many countries, such as Russia, UAE, Saudi Arabia, Venezuela, Canada, USA, Brazil, Mexico, and so on.

We welcome customers all over the world to contact us for further information of our products of control line. Customers can contact us through:

Email: info@ylpipes.com
TEL: +86-17775807583

Chemical Injection Line is another important product of Younglee. Same as control Lines, our chemical injection lines are supplied in long continuous coils in stainless steels and nickel alloys.

Chemical Injection Line Brief Introduction

Chemical Injection lines are very important material in the chemical injection system.

Chemical Injection System provides operators with precise wellbore chemical management, which is designed to optimize flow assurance and production performance and lower high cost intervention.
Chemical injection line tube usually is a coiled tubing. The coiled tubing is made of stainless steel, duplex stainless steel or nickle alloy. The coiled tubing mostly is welded & redrawn tube or seamless cold drawn tube.

Chemical Injection lines are broadly applied in chemical injection systems in many applications, such as below: 

• Downhole chemical control lines
• Chemical injection control lines
• Scale – Asphaltenes – Emulsions – Hydrates
• Foaming – Paraffin – Scavengers – Corrosion
• Instrumentation tubing
• Others

Chemical Injection Line Size Range

As one of the leading China Chemical injection line manufacturers, Younglee produces chemical injection lines with tubing sizes and wall thicknesses to suit all applications. Our chemical injection line tubing can be supplied in metric size and imperial size.

• Outer Diameter (OD): 3 mm (0.118”) to 25.4 mm (1.00”) 
• Wall Thickness (WT):  0.5mm (0.020”) to 3mm (0.118”)
• OD tolerance +/- 0.005” (0.13mm) , other tolerances are available on request
• WT tolerance +/- 10%, other tolerances are available on request
• Tubing Coil lengths up to 6,000m (20,000ft) without orbital joints depending on product dimensions and its form (seamless tube or welded tube).
• Coil lengths up to 13,500m (45,000ft) with orbital joints

The most popular sizes are: Chemical Injection Line 1/4″ x 0.049” WT, Chemical Injection Line 3/8″ x 0.049” WT (3/8″ Chemical Injection Line), 1/2″, 5/8″, and 3/4″ chemical injection control lines.

Besides above, other sizes are available on customers’ request.

Chemical Injection Line materials

As the professional manufacturer of chemical injection line tubing, we produce chemical injection lines in material stainless steel 316L, duplex stainless steel 2205, 2507, Nickel alloy 825 & alloy 625.
Besides the above, we also make chemical injection control line tubing with other materials upon customers’ request.

Chemical Composition of chemical injection line tubing materials

Mechanical Properties of chemical injection line tube materials

Corrosion Resistant Properties of chemical injection lines

Chemical Injection Line Tubing Manufacturing Forms

As the a professional manufacturer of chemical injection lines, Younglee makes long coils of chemical injection line tubing in three main forms as below:

• Seamless Tube – a billet of round bar is extruded or hot piercing into a tube and then cold rolled and drawn to final size.
• Welded and re-drawn Tube – a strip of metal is formed and being welded to a tube, then the tube is drawn through a mold to remove (homogenize) the weld seam. Some customers also call this type “seamless”.
• Welded and floating plug drawn – the weld tube is drawn through a mold with a floating plug in the bore to rework the weld seam internally and externally.

For more details on quality considerations, the advantages of redrawing welded tubes, and pressure calculations, please contact us for the chemical injection control line datasheet.

Chemical Injection Line Packing standards

The chemical injection lines are usually encapsulated or in a bundled configuration. Chemical Injection Lines can be supplied with fluid-filled, flushed and filtered to the client’s required cleanliness standard.

• Our chemical injection line tubes can be supplied as encapsulated, PVC coated or bare line tubing
• Packed in Coil wound on wooden drum or spool.
• Coils wound on customer-specific metal reels

As one of the leading China chemical injection line tube factory, Younglee’s products are widely supplied to customer domestic and abroad. Our chemical injection line tubes are exported to many customers in the oil and gas field in many countries such as Russia, UAE, Saudi Arabia, Venezuela, Canada, USA, Brazil, Mexico, and so on.

Thanks to advantages in tubular chemical injection line technologies, it is now cheaper and easier to connect downhole valves and chemical injection systems with remote and satellite wells, for both fixed and floating central platforms.

We welcome customers all over the world to contact us for further information of our products of chemical injection line. Customers can contact us through:

Email: info@ylpipes.com
TEL: +86-17775807583

Stainless steel encapsulated tubing

PRODUCT DESCRIPTION

Product Overview:

Instructions for stainless steel test cables: mainly used for underground temperature and pressure measurement.

We takes the production of High pressure with extra long stainless steel control tubelines (stainless steel coils) as its leading direction. In recent years, the company has been committed to the development and production of duplex steel and nickel-based alloy control tubelines, and has been widely recognized in the market.

Outside tube：SS 316L tube
Core：1-7 No.s
Length：1200-2000M
Pressure：100Mpa
Temperature：180-400℃

Stainless steel sensor test cable
Outside tube:316L 1/4″*0.035″
Core:1-7 No.s
Length:1000-1500M
Pressure:100Mpa
Temperature:200-400℃

Stainless steel tube sensing test cable
Outside tube:316L 1/40.035 inner tube:316L ф40.8
Core:1-7 No.s
Length:1000-1500M
Pressure:100Mpa
Temperature:180-400℃

Outside tube:316L 1/8″ * 0.035″
Core:1No.s
Length:1000-1500M
Pressure:100Mpa
Temperature:180℃

Product Overview:

1/8”Hydraulic control line, also called capillary tube, mainly used for oil and gas field underground capillary pressure measurement. The temperature and pressure sensor (also known as a downhole permanent pressure gauge, generally a nitrogen cylinder) and the production string of the oil and gas well are run into the oil and gas layer several kilometers deep, and then the 1/8 “hydraulic control line (capillary) The temperature and pressure sensors are always connected to the surface of the fluorescent display, so that the downhole temperature and pressure can be transmitted to the surface through the capillary tube

PRODUCT DESCRIPTION:

Instructions for 1/8”Hydraulic control line 

1/8”Hydraulic control line, also called capillary tube, mainly used for oil and gas field underground capillary pressure measurement. The temperature and pressure sensor (also known as a downhole permanent pressure gauge, generally a nitrogen cylinder) and the production string of the oil and gas well are run into the oil and gas layer several kilometers deep, and then the 1/8 “hydraulic control line (capillary) The temperature and pressure sensors are always connected to the surface of the fluorescent display, so that the downhole temperature and pressure can be transmitted to the surface through the capillary tube, and the instantaneous temperature and pressure at the downhole oil and gas layer can be read out through the fluorescent screen of the surface display, thereby realizing the downhole temperature and pressure,so as to realize the real-time monitoring of downhole temperature and pressure. It can also be used for pressure control of surface safety valves and other surface valves, and various connection tubelines of large-scale equipment instrumentation control systems for oil and gas field drilling and oil production.

Instructions for 1/4”Hydraulic control line

1/4”Hydraulic control line, mainly used for the control of downhole safety valve and gas release valve of cable packer in oil and gas wells. The 1/4 “hydraulic control tubeline is connected to the downhole safety valve and gas valve, and the on-off pressure of the oil and gas well downhole safety valve and the gas release valve through the cable packer are controlled by ground pressure. After the set pressure is reached, the oil and gas well is downhole. The safety valve and the gas release valve passing through the cable packer are opened at the same time. At this time, the oil and gas well can be normally produced, and the gas separated by the electric submersible pump can also be discharged from the annulus through the gas release valve. Then, the pressure of the control tubeline is released, so that the downhole safety valve of the oil and gas well and the gas release valve passing through the cable packer are closed at the same time, and the oil and gas well oil tubes and annulus circulation channels are all blocked, so that the safety of the oil well can be ensured. Of course, the 1/4” hydraulic control line can also be used alone for the control of downhole safety valves.

It can also be used for pressure control of surface safety valves and other surface valves, and various connection tubelines of large-scale equipment instrumentation control systems for oil and gas field drilling and oil production.

Instructions for 3/8”Hydraulic control line

The 3/8“ hydraulic control line is mainly used to inject chemicals into oil and gas wells. That is, the 3/8” hydraulic control line is connected to the downhole chemical injection valve, and the descaling is performed through the 3/8“ hydraulic control line and the chemical injection valve. Chemical agent is injected from the surface into the oil tube at a certain depth down the well, which effectively removes the scaling of the oil tube and ensures the normal production of oil and gas fields.

It can also be used for pressure control of surface safety valves and other surface valves, and various connection tubelines of large-scale equipment instrumentation control systems for oil and gas field drilling and oil production.

YOUNGLEE provides several stainless steel tubular products in coils and on spools:

• Stainless steel control lines
• Chemical injection lines
• Continuous feed tubes
• Stainless steel capillary tube
• High pressure super long control lines
• Hydraulic tubing
• Instrumentation tubing
• Stainless steel encapsulated tubing
• Stainless steel armored test cables

In this detailed product introduction you’ll learn: Product overview, Specification, Material, Sizes and single coil lengths, Working pressure and How to order.

PRODUCT OVERVIEW:

We manufacture stainless steel coiled tubing products that meet the highest industry specifications, it is in accordance with ASTM A269 APIRP5 C7 and JISG4305 project standards. Our coiled tubing is used in oil and gas industry applications,such as downhole hydraulic control lines, downhole chemical control lines, drilling, subsea control lines for hydraulic power and chemical injection lines,downhole test cable. Coiled tubing is supplied normally spooled on a large reel or drum, our coiled tubing has a excellent performance on high working pressure (13000PSI) and extra long length.

MATERIAL:

Stainless steel grade, chemical composition, all materials are supplied in bright annealed condition. Normally available for material TP316L, Alloy825&Alloy625, other grades can be offered on request.

SPECIFICATION:

High pressure with  extra long is the characteristic of the stainless steel coil,which is mainly used in petroleum, natural gas, chemical industry,  shipbuilding and other industries.

Steel tube material:304、316L、2205、2507、825、625

Steel tube O.D.:1/16″—1″

Steel tube wall thickness:0.5MM—3MM

Steel tube length:100-12000M

Working pressure:50—200MPA