Welding in the oil and gas industry requires the highest quality of welded joints, clear organization of all work stages, strict compliance with welding procedures, safety and labour protection requirements.

The use of modern technologies and equipment for welding, as well as high qualification of Syrlasu LLP specialists ensure the performance of welding operations in accordance with international standards for pipelines up to 30″, wall thickness up to 64 mm and working pressure over 10 MPa.

For fabricating and repairing pipelines, the main welding processes are gas tungsten arc welding (GTAW) and shielded metal arc welding (SMAW), as well as a combination of these processes (GTAW+SMAW). For welding of critical metal structures GMAW (gas metal arc welding) and FCAW (flux cored arc welding) are used.

The company’s vast experience in welding of carbon, low-alloy, heat-resistant, stainless and nickel steels pipes allows us to constantly maintain the high qualification of welders and specialists, as well as to upgrade and use modern equipment of the leading world companies. Our company has an equipped production yard, where welders undergo regular trainings and practices using automatic welding recorders.

Since the concurrent heating and heat treatment are an integral part of welding of pipes, intended for a hydrogen sulfide service, the company uses high-precision multi-channel automatic equipment for local heat treatment using resistance electric heaters.

Syrlasu LLP staff consists of highly qualified specialists with vast experience in the pipelines construction and repair, who are able to provide high quality performance at all stages of welding and installation works. All specialists, performing welding and installation works, pass periodic training, skills improvement, and welders pass qualification at the special bench, simulating the main parameters of pipelines in operation and under high pressure.

Safety of personnel and facilities in the oil and gas industry is a priority objective; however, the construction plans and tasks dictate the need for hot works performance in high-risk conditions. To eliminate the occurrence of emergencies during hot works performance at brownfield, we use positive pressure welding habitats intended to isolate the area, where the sparks can occur, from the main process. Our company possesses twelve sets of positive pressure welding habitats (SAFEHOUSE), including all necessary equipment.

Installation works are also an integral part of construction works at oil and gas facilities. Our company has vast experience in installation works performance:

• fabrication and installation of service platforms;
• fabrication and installation of various complexity pipe racks;
• installation of process equipment.