Analysis of Structural Reliability of Main Gas Pipelines

The possibility of future operation of pipelines that are under exploitation is one of the most important issues of the oil and gas industry. Therefore, it is necessary to periodically check (diagnose) the technical condition of pipelines. Taking into account the operating conditions, the thickness losses may occur during the operation period.

The paper investigates the residual operating resources of various elements of the pipeline as a result of diagnostic work, as well as the calculation of the wall thickness of the main gas pipeline with methods based on modern technologies. Both analytical methods and modern software were used during the calculations. A three-dimensional spatial model of the pipeline was created via the software, and the strength and stability of the pipeline under the influence of various forces were calculated. Subsequently, following technical diagnostics of the pipeline, the possibility of further operation of the pipe element was determined.