Published February 2022, Pg. 43-46

Section: Оffshore hidrotechnical facilities

UOT: 622.24.05 : 620.193/.197

DOI: 10.37474/0365-8554/ 2022-02-43-46

On making serviceable and lifting the jacket with serious defects in welding joints

F.G. Hasanov PhD in Tech. Sc. - “Oil-Gas Scientific Research Project” Institute

The paper reviews the issues of evaluation of cover degree of corrosion in steel parts of the jacket in production area being incomplete over twenty years and designed for using in construction of deepwater offshore platform No 7 in Guneshli field, as well as the resistance of structural steel to the deterioration in the stages of occurrence and increase of cracks in welding joints. Despite the appearance of numerous cracks in welding joints of structural steel of the jacket being on shore in the active corrosion medium over the years and the necessity of structural changes, corresponding calculations using traditional methods and state-of-the-art calculation models have been carried out, the jacket made serviceable for operation and its usage as a major facility in construction of No 7 deepwater offshore platform in Guneshli field recommended as well.

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