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Converting engines to run on Gas
Converting engines to run on Gas

Converting engines to run on Gas

Converting engines to run on Gas

Converting engines to run on Gas

Compressed natural gas or CNG as a transportation fuel is natural gas under pressure which remains clean and cheaper than gasoline and oil. Under the current conditions in Vietnam, gasoline and...
Gas importation
Gas importation

Gas importation

Gas importation

Gas importation

Given the fact that domestic gas demand has been increasing dramatically while gas supply is forecasted to be declining in the period of 2015-2020, Petro Vietnam Oil and Gas Group (PVN) appointed...
Liquefied natural gas (LNG)
Liquefied natural gas (LNG)

Liquefied natural gas (LNG)

Liquefied natural gas (LNG)

Liquefied natural gas (LNG)

LNG (Liquefied Natural Gas) is a natural gas liquefied by cryogenic refrigeration at minus 162oC after removal of impurities. LNG composition is primarily methane.
Steel Pipes
Steel Pipes

Steel Pipes

Steel Pipes

Steel Pipes

PV Pipe shall supply pipes according to Customer Requirement which is based on the optimal production process. Our quality is guaranteed by following exact manufacturing and quality control procedures...
Steel pipe services
Steel pipe services

Steel pipe services

Steel pipe services

Steel pipe services

PVPIPE offers steel plate with a wide range of product specifications from plain carbon steel grades to high strenth grades that comply with the requirement of API, DNV, ASTM… or any other...
Liquefied Petroleum Gas (LPG)
Liquefied Petroleum Gas (LPG)

Liquefied Petroleum Gas (LPG)

Liquefied Petroleum Gas (LPG)

Liquefied Petroleum Gas (LPG)

Liquefied petroleum gases (LPG) is a group of hydrocarbon gases, primarily propane, normal butane, and isobutane, derived from crude oil refining or natural gas processing. These gases may be marketed...
Condensate
Condensate

Condensate

Condensate

Condensate

Condensate is a mixture of liquid hydrocarbons separated from associated gas fields or natural gas fields. The composition of condensate mainly consists of paraffin, including pentane and...
Coating Service
Coating Service

Coating Service

Coating Service

Coating Service

Fusion Bonded Epoxy (FBE) is an excellent anti-corrosion coating for oil and gas pipelines because its strong adhesion to steel brings about superior long term corrosion resistance and protection of...
Gas transportation and distribution
Gas transportation and distribution

Gas transportation and distribution

Gas transportation and distribution

Gas transportation and distribution

Gas is gathered from fields and transported to the Central Compression Platform (CCP) and is then compressed with high pressure to be conveyed through submarine pipelines to a landfall station in Long...
PV Gas LPG Cylinders (Joint Stock Company)
PV Gas LPG Cylinders (Joint Stock Company)

PV Gas LPG Cylinders (Joint Stock...

PV Gas LPG Cylinders (Joint Stock Company)

PV Gas LPG Cylinders (Joint Stock Company)

PV Gas Cylinder is assigned by Vietnam Oil and Gas Group (PVN) and Petro Vietnam Gas Corporation (PV Gas) to produce, trade in gas cylinders with the brand of PetroVietnam. The major business...
Gas gathering
Gas gathering

Gas gathering

Gas gathering

Gas gathering

PV Gas conducts gas gathering on a national scale and is gradually involved in international gas gathering and purchasing projects through its affiliated companies and subsidiaries.
Compressed Natural gas (CNG)
Compressed Natural gas (CNG)

Compressed Natural gas (CNG)

Compressed Natural gas (CNG)

Compressed Natural gas (CNG)

CNG (Compressed Natural Gas) is a natural gas which of main composition is methane (CH4). It has been treated and compressed at high pressure (from 200-250 bar at ambient temperature) for advantage...
Maintenance and repair services for gas facility equipments
Maintenance and repair services for gas facility equipments

Maintenance and repair services for gas...

Maintenance and repair services for gas facility equipments

Maintenance and repair services for gas facility equipments

Maintenance and repair services for gas facility equipments are one of the important tasks undertaken by PV Gas for the benefit of the gas industry, the state budget savings and for preserving and...
Dry gas
Dry gas

Dry gas

Dry gas

Dry gas

Dry gas is a natural gas or associated gas which has been treated to remove mechanical impurities, water, bupro and condensate in the gas processing plant. Its main composition is methane (CH4).
Categories: Dịch vụ

Coating Service

I.  ANTI-COROSSION COATING SERVICE

1.      FUSION BONDED EPOXY COATING (FBE)

Fusion Bonded Epoxy (FBE) is an excellent anti-corrosion coating for oil and gas pipelines because its strong adhesion to steel brings about superior long term corrosion resistance and protection of pipelines operating smoothly at required temperatures during their designed life.

Also, the excellent resistance to corrosion of FBE coating helps to reduce the total cost of cathodic protection during the operation of the pipeline.

Capability/Property

FBE

Minimum Pipe Diameter ………………………………………………………

60.3 mm (2”)

Maximum Pipe Diameter ………………………………………………………

1219.2 mm(48”)

Minimum Pipe Length …………………………………………………………

9.5 m

Maximum Pipe Length ………………………………………………………...

12.7 m

Maximum Recommended Operating Temperature ……………………………

140 °C (284oF)

2.      THREE LAYER POLYETHYLENE COATING (3LPE) 

Three layer polyethylene coating (3LPE) is a multilayer coating composed of three functional components: a FBE primer, a copolymer adhesive and an outer layer of high density polyethylene to provide excellent corrosion protection and mechanical protection for oil & gas pipelines at operating temperature up to 85oC.

The 3LPE System achieves superior long term corrosion resistance and excellent mechanical protection for small and large diameter pipelines operating at high temperature thanks to strong adhesion of FBE to steel and the tough outer layer of high density polyethylene. The 3LPE system can be applied in a wide range of thicknesses to meet project specifications and requirements.

Capability/Property

3LPE

 

Minimum Pipe Diameter ……………………………………………………….

60.3 mm (2”)

Maximum Pipe Diameter ………………………………………………………

1219.2 mm (48”)

Minimum Pipe Length …………………………………………………………

9.5 m

Maximum Pipe Length ………………………………………………………...

12.7 m

Minimum/Maximum Recommended Operating Temperature (Onshore) …….

-20°C to 65°C(-4°F to 149°F) 

Minimum/Maximum Recommended Operating Temperature (Offshore) …….

-20°C to 85°C(-4°F to 185°F)

3.    THREE LAYER POLYPROPYLENE COATING (3LPP) 

Three layer polypropylene coating (3LPP) is a multilayer coating composed of three functional components: a FBE primer, a copolymer adhesive and an outer layer of polypropylene to provide excellent corrosion protection and mechanical protection for oil & gas pipelines at operating temperature up to 140oC.

The 3LPP System achieves superior long term corrosion resistance and excellent mechanical protection for small and large diameter pipelines operating at high temperature thanks to strong adhesion of FBE to steel and the tough outer layer of polypropylene. The 3LPP system can be applied in a wide range of thicknesses to meet project specifications and requirements.

 

Capability/Property

3LPP

Minimum Pipe Diameter …………………………………………………

88.9 mm (3”)

Maximum Pipe Diameter …………………………………………………

1219.2 mm (48”)

Minimum Pipe Length …………………………………………………...

9.5 m

Maximum Pipe Length …………………………………………………...

12.7 m

Minimum/Maximum Recommended Operating Temperature (Onshore) …..

-20°C to 110°C (-4°F to 230°F)

Minimum/Maximum Recommended Operating Temperature (Offshore) …..

-20°C to 140°C (-4°F to 284°F)

 

II.      CONCRETE WEIGHT COATING SERVICE 

This concrete weight coating system provides negative buoyancy and mechanical protection for offshore pipelines.Concrete weight coating uses impingement application process making it suitable for both small and large diameter pipelines.

This coating method is available in various thicknesses and densities to provide the appropriate level of buoyancy control and meet project technical specifications. Available thicknesses are up to 150 mm (6”), which achieves a high level of mechanical protection and stability.

It can be applied over all anti-corrosion coatings and insulation coatings without harm to the long term corrosion protection and thermal insulation of the pipelines.

Capability/Property

Concrete Weight Coating

Characteristic Proctor Cylinder Compressive Strength (28 days) ……….

30-40 MPa (4350-5800 psi)

Characteristic Cube Compressive Strength (28 days) …………………...

40-50 MPa (5800-7250 psi)

Minimum Pipe Thickness ………………………………………………..

40 mm

Maximum Pipe Thickness ……………………………………………….

150 mm

Minimum Pipe Diameter …………………………………………………

168.3 mm (6”)

Maximum Pipe Diameter ………………………………………………...

1219.2 mm (48”)

Minimum Pipe Length …………………………………………………...

9.5 m

Maximum Pipe Length …………………………………………………..

12.7 m

 

 

 

 

 

 

 

 

 

 

 

 

 

III.       INSULATION COATING SERVICE

1.      POLYURETHANE FOAM (PUF) THERMAL INSULATION COATING 

PUF thermal insulation coating designed for offshore flow assurance is critical to the oil and gas industry to reduce heat loss and prevent hydrate formation for oil pipelines and helps to maintain viscosity in hot oil pipelines.

The coating system is a polyurethane-based insulation coating composed of three functional components: a FBE primer, a layer of polyurethane foam and an outer layer of high density polyethylene/polypropylene to provide excellent corrosion protection, superior insulation and mechanical protection for oil pipelines at operating temperatures up to 150oC.

Capability/Property

PU Foam

Minimum Pipe Diameter ……………………………………………...

100 mm (4”)

Maximum Pipe Diameter ……………………………………………..

600 mm (24”)

Minimum Operating Temperature ……………………………………

-20°C (-4°F)

Maximum Operating Temperature ……………………………………

140°C (284°F)

Minimum Pipe Length ………………………………………………...

9.5 m

Maximum Pipe Length ………………………………………………..

12.7 m

OHTC (“U” Value) ……………………………………………………

<2.0 W/m2.K (0.352 BTU/hr.ft2.F)

Maximum Water Depth ……………………………………………….

300 m

K-Value ………………………………………………………………..

<0.042 W/m.K

 

2.      MULTILAYER POLYPROPYLENE (MLPP) INSULATION COATING 

Multilayer Polypropylene (MLPP) Insulation Coating is a technologically advanced coating system for offshore flow assurance. MLPP Insulation Coating can be designed and manufactured to provide excellent insulation in subsea pipelines with operating temperatures up to 150°C (302°F) and depths of up to 3000 m (9842’).

In MLPP thermal insulation coating, 3LPP coated pipe is conveyed through infrared heating system for outer layer fusion and improving adhesion between preceding and successive layers. Hot PP Foam is extruded onto the heated 3LPP coated pipe. Then the pipe is cooled down by quenching system. This step will be repeated as many times as necessary to achieve the desired thermal insulation requirements. Following the final polypropylene foam coating application, a final single layer of UV stabilized polypropylene topcoat is applied by extrusion process over the polypropylene foam.

 

Capability/Property

 

MLPP

Minimum Pipe Diameter ………………………………………......

100 mm (4)

Maximum Pipe Diameter ……………………………………….....

600 mm (24)

Minimum Operating Temperature …………………………………

-35°C (-31°F)

Maximum Operating Temperature ………………………………...

150°C (302°F)

Minimum Pipe Length ……………………………………………..

9.5 m

Maximum Pipe Length …………………………………………….

12.7 m

OHTC (“U”Value) …………………………………………………

<1.5W/m2.K(0.264 BTU/hr.ft2.F)

Maximum Water Depth ……………………………………………

 3000 m

 

IV.           BENDS & FITTINGS COATING SERVICE

1.      Bend and Fitting for 2/3LPE – 2/3LPP Anti-corrosion coating 

We can apply 2/3LPE, 2/3LPP anti-corrosion coating systems designed for subsea production structures. These systems can be coated for bends and fittings. They can be applied in a wide range of thicknesses to meet project requirements for both shallow and deep water applications.

This coating provides excellent long-term anti-corrosion protection for bends in subsea environments and in harsh environments with temperatures up to 140°C (285°F). The two and three-layer polyethylene and polypropylene coating systems are suitable for all the existing anti-corrosion.

2. Bend & Fittings for SPU - Insulation coating 

They can be applied in a wide range of thicknesses and configurations to meet technical performance designs based on the specific requirements for both shallow and deep water applications.

This coating provides superior thermal insulation properties. The adhesion properties of the primer or the FBE result in corrosion protection and resistance to cathodic disbondment.

It can be used for thermally insulating fabricated custom parts of subsea production systems for bends. The SPU systems can be applied for technical performance designs based on the specific requirements of each project

V.      FIELD JOINT COATING SERVICE

1.      Field joint coating for anti-corrosion 3LPE and 3LPP coated pipelines:

Heat Shrink Sleeve 3LPE and Heat Shrink Sleeve 3LPP coating technologies are used and comprised of the same PE and PP material grades as the mainline (factory-applied) coating to provide equivalent performance and deliver truly consistent end-to-end pipeline coating performance. 

2.      Field joint coating for insulation coated pipelines:

Polyurethane Foam (PU Foam) and Solid Polyurethane (SPU) coating technologies are used and comprised of the same PU Foam and SPU material grades as the mainline (factory-applied) coating to provide equivalent performance and deliver truly consistent end-to-end pipeline coating performance. 

IV.  TESTING SERVICES

Product

Service

Customers and Partners

© Copyright PETROVIETNAM GAS JOINT STOCK CORPORATION (PV GAS)
Address: Floor 12-15, PV GAS TOWER, No. 673 Nguyen Huu Tho Street, Phuoc Kien Commune, Nha Be District, Ho Chi Minh City.
Phone: +84.28. 3781 6777 Fax: +84.28. 3781 5666 Email: pvgas@pvgas.com.vn

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