The article presents defined scientific basis for planning repair-recovery works on trunk oil and gas pipelines, based on obtaining data about technical condition of pipelines and joined analysis of reliability indicators, safety and risk indicators with regards to material and technical opportunities of operating company and strategic characteristics of facilities. The article contains consolidated scientific opinion about the methods for planning repair-recovery activities on pipelines of Russia, USA and Europe. It is noted, that the approaches, implemented in real life, can differ from scientific basis due to a variety of causes. On the basis of the outlined concept, the analysis of practical approaches, applied for planning of overhauls of trunk gas and oil pipelines in Russia, was performed. The specialists use high technology analytical system to initiate remedial measures, focusing on reliability parameters and considering economic feasibility. However, what we consider promising is the extension of organizational and technical basis with the purpose of obtaining volume of statistic and actual source data, necessary for expert assessment. The planning of replacement of trunk pipeline sections is based on the results of continuous monitoring of the technical condition of the pipes by smart pigging and the involving into calculation both actual parameters of facilities operation and actual mechanical characteristics of pipe metals and welded connections, considering overall influence of specific production technology, steel work quality and service life length. With the purpose of further developing this approach, it is practical to extend the list of considered defect parameters and the use of the whole system of the pipeline technical condition data by adding the quantity of hours in service up to the failure in a probable scenario. The author stated the primary directions of developing methodical approaches to arranging the technical maintenance and repair of oil and gas pipeline for long-term operation.
Risk management of oil and gas transportation facilities based on reliability indicators monitoring
