The structural strength was evaluated according to the results of pipeline inline inspection (using internal diagnostic scratchier) using “StrengthPro” software and “PressureMaster” on the base of requirements of the following standards: DSTU-N B V.2.3-21:2008 “Determination of residual strength of pipelines with defects” or API 579 “Recommended Practice for Fitness-for-Service".

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    Following pipelines were analyzed:

• main oil pipeline "Kremenchug- Kherson" (230 km);

• main oil pipeline "Odessa-Snigurivka" (230 km);

• main oil pipeline "Lisicansk-Tihoretsk" (20 km);

• main oil pipeline "Brody-Karpaty" (400 km);

• main gas pipeline "Dolyna (The Valley)-Rossosh" (100 km);

• main product pipelines DP "PrikarpatZahidtrans" (300 km, diesel oil);

• main gas pipeline "UPU (Urengoy-Pomary-Uzhgorod)" and "Progress" (1000 km).

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    According to the results of the analysis, the degree of danger of each defect is established, recommendations to pipeline operators regarding the necessity and priority of repair work in the appropriate time ranges are given.