Construction, overhaul of oil and gas pipelines

• Geodetic works, breakdown of the pipeline axis
• Excavation, trench development, ground cutting
• Pile works performed in frozen and permafrost soils
• Arrangement of grillages
• The device of driving and boring piles
• Thermal strengthening of soils
• Construction of concrete and reinforced concrete monolithic structures
• Installation of precast concrete and reinforced concrete structures
• Drilling and blasting during construction
• Installation of metal structures
• Installation of main and field underground and surface pipelines
• Replacement of the insulation coating of pipelines
• Repair of pipeline sections
• Re-laying of pipeline sections
• Overhaul of gas distribution stations and connecting loops
• Works on the construction of crossings by the method of directional drilling
• The device of electrochemical protection of pipelines
• Technical and biological land reclamation
• Hydraulic and pneumatic testing of main pipelines for strength and leakproofness in several stages:
  1. The first stage is after welding on the site with separate lashes
  2. The second stage is after laying
  3. The third stage - simultaneously with the entire pipeline