«Onshore and offshore oil and gas well construction»

The results of determining local overstresses for structural elements of marine stationary platforms in case of corrosion defects presence

UDC: 622.276.04
DOI: 10.33285/0130-3872-2021-12(348)-58-62

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russian Federation

Keywords: corrosion defects; marine stationary platforms; structural elements; security; stress concentration

Annotation:

The Russian Federation is actively operating offshore oil and gas facilities. During operation, these structures are exposed to significant corrosive effects from the surrounding marine environment. Corrosion, acting on the elements of offshore platforms, significantly affects their strength properties and can lead to the destruction of the entire platform. In places of corrosive damage, local overvoltage occurs, which can pose a great danger to the operation of offshore platforms. Evaluation of local overvoltage is carried out by determining the stress concentration factors. On the basis of the studies carried out, the authors of the article have developed a formula for calculating the values of the stress concentration factors for structural elements of marine stationary platforms(MSP) in case of corrosion defects presence in them.

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