E3S Web of Conferences (Jan 2021)

Increased operational reliability tubing from steel 25CrMnNb grade

  • Laev Konstantin,
  • Devyaterikova Nataya,
  • Aleksandrov Sergey,
  • Shcherbakov Igor,
  • Rogova Kseniya,
  • Oshurkov Georgiy,
  • Radionova Irina,
  • Pavlov Aleksandr,
  • Alekseeva Ekaterina,
  • Strekalovskaya Darya

DOI
https://doi.org/10.1051/e3sconf/202122503005
Journal volume & issue
Vol. 225
p. 03005

Abstract

Read online

The conventional tubing supplied to oilfields with low aggressive environments: with pCO2 up to 0.3 atm and pH2S up to 0.005 atm often shows signs of pitting carbon dioxide corrosion after operation. To solve the problem, a new sparingly alloyed steel of 25KhGB was developed for K steel grade tubing with increased set of performance characteristics obtained after thermomechanical treatment.