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Registration Number

0222U001600, 0121U110375 , R & D reports

Title

Extension of service life of flexible pipes of coltubing installations and pump rods taking into account operational degradation of materials and action of operational factors

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Head

Zvirko Olha I., д.т.н.

Registration Date

28-01-2022

Organization

Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine

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 The database of damages of flexible coiled tubes has been created and their operational damages have been classified. The conditions of operational defects appearance in flexible tubes have been analyzed and the main contributing factors have been identified, in particular: chemical composition of aggressive working environments, as well as specifics of static and cyclic loading arising during operation of coiled tubing installation. The damages of sucker rods of oil and gas equipment have been analyzed, their typical operational damages have been defined, and the main operational, mechanical and corrosion factors and mechanisms of their fracture have been determined. The decisive role of corrosive-hydrogenating influence of formation waters and working environments have been defined, as well as the mechanisms depending on the chemical composition of the environment and the type of operational loading on damages of flexible tubes of coiled tubing installation and sucker rods of oil and gas equipment. A methodology for estimating the initial stages of damaging and surface cracking of inner and outer surfaces of flexible pipe elements under conditions simulating operational one has been developed. Research equipment has been modified and tested, and a specimen for strength and durability testing of flexible pipe elements under static and cyclic bending in aggressive working environments has been designed.

Product Description

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Barna Roman A.
Vovk Roman I.
Hredilʹ Myroslava I.
Zvirko Olʹha Ivanivna
Kret Nataliya V.
Kurnat Ivan M.
Leshchak Rostyslav L.
Nykyforchyn Hryhoriy Mykolayovych
Syrotyuk Andriy M
Student Oleksandra Z.
Tsyrulnyk Oleksandr T

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2022-03-09