Oil and Gas for High Pressure Water Injection Flexible Composite Pipes

• Color: Black
• Usage: Solvent, Petroleum Coke, Asphalt, Paraffin Wax, Fuel, Oil and Gas
• Type: Heavy Crude Oil
• Application: Oil Product, Base Oil, Derivatives, Water Injection Pipelines, Brine, Chemical Raw Mat
• Transport Package: Export Package
• Specification: DN 40 to DN 200
• Trademark: TONGJI
• Origin: China
• HS Code: 3917390000
• Production Capacity: 5000000PCS/Year

Product Description

Flexible Composite High Pressure Conveying Pipes/Delivery Pipes

1,Overview & Application
Flexible composite Pipe is a multi-layer composite pipe composed of multiple materials, inner lining layer and outer protection layer are high polymer material structure generally, So it has natural anti-corrosion performance. The reinforcing layer is generally made of high-strength fiber or continuous glass fiber material, so Flexible composite pipe can withstand strong loading in addition to corrosion resistance and flexibility superiority.
Flexible composite pipes are widely applied in single-well gathering and transportation pipeline network in land oil and gas fields, high-pressure alcohol injection pipelines for natural gas exploitation, oilfield water injection pipelines, sewage transportation pipelines, oil-gas-water mixed transportation pipelines in sour oil and gas fields, downhole continuous water injection pipelines, brine, chemical raw materials and other corrosive media transportation pipelines.
2,Features of Flexible Composite pipes
1, Our Flexible Composite pipes owned excellent flexibility and impact resistance, especially suitable for installation use in mountainous and rocky areas.
2, With supreme corrosion resistance and a long working life of more than 20 years, 
For H2S,CO2 corrosion resistance, eliminating the pipe line perforation phenomenon caused by corrosion greatly.
3, High pressure resistance, Normal use pressure up to 25MPa, Burst pressure up to 75MPa or More.
4, With few connectors, and the continuous length of coil supply is more than 1 km.
5, The pipeline structure can be selected and designed according to the parameters of. conveying medium, temperature, pressure level, etc., the maximum use temperature is up to 95 °C, light weight, high strength, fast installation, 3-5 people can install more than 5KM per day, and has outstanding flexibility in corner and rugged terrain applications.

High Pressure Water injection Flexible Composite Pipes
High Pressure Water Injection Flexible composite pipes are designed, mainly aimed at the seirous corrosion, short working life, high maintenance cost and low pressure resistance of traditional non-metallic pipes in the Oil and Gas field.

1. Structure and Feature

The pipe is a continuous composite pipe, the pipe body is composed of multiple materials, inner lining, reinforcing layer and outer protection layer, its inner lining as transport layer and outer protection layer are extruded to form by high polymer material, and the reinforcing layer is usually made of cross-winding high-strength fibers. The internal conductive layer is HDPE, PEX or other modified polymers. The interlayer is made of high-strength materials such as polyester fiber, aramid fiber, carbon fiber, etc., and the outer protective layer is made of high-density polyethylene.
Pipe sizes: DN 40 - DN 200
Designed Temperature: -40 ­to 85ºC
Designed Pressure: </=32mpa,(DN40 -50 High Pressure Class 32Mpa),(Dn 65-80 High Pressure 25Mpa),(Dn90-125 High Pressure Class 20Mpa),(Dn150-200High Pressure Class 6.4Mpa). 
Specification: SY/T6662.2-2020
DN150 or less can be supplied in coils, and the length of a single pipeline can be 100-1200 meters, and the connection method is threaded metal crimping joints.

Oil Transfer Flexible Composite Pipes
The Flexible composite tubes are designed for the special requirements of serious corrosion and aging, frequent perforation, short working life, high maintenance cost and high transportation temperature of oil and gas field pipelines. According to different processing technology, it is divided into non-bonded flexible composite pipe and bonded solid-wall continuous composite pipe. According to the different conveying temperatures, it is divided into normal temperature oil transportation Flexible composite pipe (below 65°C), flexible composite pipe for medium temperature oil transmission (below 85 °C), flexible composite pipe for high temperature oil transmission (below 110 °C).


1, Normal Temperature Oil transmission Flexible Composite Pipes(below 65°C )
It is mainly designed for single well oil pipelines and gathering transportation branch lines that are conveyed at room temperature.
Inner layer: Molecular materials (PE100, PE-RT (XRT70), PEX (Lianqiao S1), UHMW-PE (Yanshan Petrochemical 2.5 million), PA11/12) 
Reinforcement layer: polyester filament, carbon fiber filament, aramid prepreg tape, glass fiber prepreg tape and other high-strength non-metallic fibers 
Outer layer: PE polymer material 
Pipe Sizes: DN40 - 600 
Nominal pressure: 2.5MPa-32MPa 
Medium temperature: -40 to 65°C 
Specifications:
SY/T 6662.2-2020 Non-metallic composite pipes for oil and gas industry (oil and gas industry standard) 
SY/T 6662.2-2012 Flexible Composite High Pressure Transmission Pipe (Oil & Gas Industry Standard) 
SY/T 6662.5-2014 Reinforced Molecular Continuous Composite Pipe (Oil & Gas Industry Standard) 
SY/T 6769.5-2016 Code for design, construction and acceptance of non-metallic pipelines (oil & gas industry standard) (Part 5 Fiber-reinforced thermoplastic composites Coiled tube) 
Q /SY TZ 0407-2014 Code for Construction and Acceptance of Flexible Composite Pipe (Tarim Oilfield Enterprise Standard) 
Q/SY-TGRC 150-2019 Continuous Fiber Reinforced Thermoplastic Bonded Composite Pipe (Enterprise Standard for CNPC Pipe Research Institute) 

DN150 and below can be supplied by coil, the length of a single pipeline can be 100-1200 meters, and the connection method is electrofusion in the non-metallic reinforced composite melting zone (below 6.4MPa) and threaded metal crimp joints.

2, Medium Temperature Oil transmission Flexible Composite Pipes(below 85°C )
It is mainly designed for the main branch lines and long-distance gathering pipelines for medium temperature convey.

Inner layer: UHMW-PE (Yanshan Petrochemical 2.5 million), PA11/12, PVDF. Reinforcement layer: polyester filament, carbon fiber filament, aramid prepreg tape, glass fiber prepreg tape and other high-strength non-metallic fibers. 
Outer layer: PE polymer material 
Pipe Sizes: DN40-600 
Nominal Pressure: 2.5MPa-32MPa 
Medium Temperature: -40 to 85°C 
Specifications: 
SY/T 6662.2-2020 Non-metallic composite pipes for oil and gas industry (oil and gas industry standard) 
SY/T 6662.2-2012 Flexible Composite High Pressure Transmission Pipe (Oil & Gas Industry Standard) 
SY/T 6662.5-2014 Reinforced Molecular Continuous Composite Pipe (Oil & Gas Industry Standard) 
SY/T 6769.5-2016 Code for design, construction and acceptance of non-metallic pipelines (oil & gas industry standard) (Part 5 Fiber-reinforced thermoplastic composites Coiled tube) 
Q /SY TZ 0407-2014 Code for Construction and Acceptance of Flexible Composite Pipe (Tarim Oilfield Enterprise Standard) 
Q/SY-TGRC 150-2019 Continuous Fiber Reinforced Thermoplastic Bonded Composite Pipe (Enterprise Standard for CNPC Pipe Research Institute) 

DN150 and below can be supplied by coil, the length of a single pipeline can be 100-1200 meters, and the connection method is electrofusion in the non-metallic reinforced composite melting zone (below 6.4MPa) and threaded metal crimp joints.

3, High Temperature Oil transmission Flexible Composite Pipes(below 110°C )
It is mainly designed for the main branch lines of gathering and transportation, long-distance gathering and transportation pipelines, outlet pipelines of heating facilities for high-temperature crude oil transmission in special environments and regions.

Inner layer: PVDF (polyvinylidene fluoride), POK (polyketone) 
Reinforcement layer: polyester filament, carbon fiber filament, aramid prepreg tape, glass fiber prepreg tape and other high-strength non-metallic fibers.
Outer layer: PE polymer material.
Pipe Sizes: DN40 - DN600
Nominal Pressure: 2.5MPa-25MPa 
Medium temperature: -40 to 110°C 
Specifications: 
SY/T 6662.2-2020 Non-metallic composite pipes for oil and gas industry (oil and gas industry standard).
SY/T 6662.2-2012 Flexible Composite High Pressure Transmission Pipe (Oil & Gas Industry Standard).
SY/T 6662.5-2014 Reinforced Molecular Continuous Composite Pipe (Oil & Gas Industry Standard).
SY/T 6769.5-2016 Code for design, construction and acceptance of non-metallic pipelines (oil and gas industry standard) (Part 5 Fiber-reinforced thermoplastic composites Coiled tube).
Q /SY TZ 0407-2014 Code for Construction and Acceptance of Flexible Composite Pipe (Tarim Oilfield Enterprise Standard) Q/SY-TGRC 150-2019 Continuous Fiber Reinforced Thermoplastic Bonded Composite Pipe (Enterprise Standard for CNPC Pipe Research Institute).

Connection of PIpes

Markings of Flexible Composite pipes:

Production Equipment:
Construction Photos