Overhaul

The operating stability of gas transportation facilities is secured by the implementation of a diagnostics, reconstruction and overhaul program.

ThIS AREA OF bUSINESS OF ThE SGM GROUP IS GROwING RAPIdly:
 Scope and range of GTS facility overhaul operations have grown
 New areas have emerged: diagnostic survey, maintenance and routine repair

SCOPE OF OPERATIONS INkEy TyPES OF OvERhAUl hASSUb STANTIAlly ExPANdEd:
 Pipeline linear part overhaul – twofold
 Gas compressor station overhaul – twelvefold
 Gas compressor  Gas pipeline route cleaning and grubbing – twofoloverhaul – twelvefold

STARTING FROM 2012 ThE SGM GROUP OF COMPANIES hAS bEEN PERFORMING ThE FOllOwING:
 Underground crossing overhaul (27 gas pipeline strings
 Process pipeline overhaul (52 facilities)

Diagnostic study includes:

 Intra-pipe defect detection applied to more than 7,000 km of trunk gas pipelines

Diagnostics of equipment and process pipelines for compressor stations at more than 1,000 facilities

 Examination of underground crossings for 439 gas pipeline string

 Corrosion detection of the linear part for more than 7,100 km of trunk gas pipeline

Maintenance and routine repairs are performed at more than 8,500 facilities of power-generating equipment; electrochemical protection; facilities of heat and water supply systems; automatic process control systems and those of communications and metrology