Petroleum engineering and construction service
Currently, some subsidiary companies of Petrovietnam such as the Joint Venture Vietsovpetro, Petrovietnam Construction Joint Stock Corporation, Petrovietnam Technical Service Corporation, etc. are providing high-quality petroleum engineering and construction services like manufacturing, installing oil rig bases; engineering and manufacturing oil/LPG tanks, etc.

Specific services include:

- Manufacturing, installing oil rig bases and other metal structures;

- Engineering, manufacturing petroleum/LPG, water, pressured storage tanks and technological pipe system;

- Producing mechanical products, anti-corrosion products, maintenance and repair of  oil rig base, ships and floating vehicles;

- Manufacturing pipe thread, producing couplers, connection joints and auxiliaries in petroleum drilling, production and industries;

- Surveying, maintaining, overhauling and repairing petroleum facilities (onshore and offshore), civil and industrial facilities;

- Construction investment in petroleum mechanical manufacturing factories; ship building workshops; transport of oil, gas, chemicals, oil rig building factories; cement plants and construction material producing factories;

- Installing, maintaining and repairing petroleum facilities (onshore and offshore), oil rig bases, metal structures, storage tanks (petroleum, LPG, water), pressured tanks and technological system, civil and industrial facilities;

- Building oil rigs onshore, offshore.