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Information × Registration Number 0215U000640, 0114U000813 , R & D reports Title Scientific and technical rationale for the choice of materials for Christmas tree details designed for operation on wells with different content of hydrogen sulfide and carbon dioxide popup.stage_title Head Khoma Myroslav, Registration Date 20-03-2015 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 Purpose of work - the development of recommendations for using steels and alloys for production of Christmas tree details and pipe equipment, operated under the action of hydrogen sulfide and carbon dioxide. It has been shown that the presence of hydrogen sulfide at a partial pressure PH2S = 1 and 5 atm at t = 80°C increases the corrosion rate of 09Mn2Si steel in a simulated seawater in ~ 2.7 and 8.9 times, respectively, and virtually has no effect on the corrosion rate of 08Cr18Ni10T steel. Under these conditions, the total amount of absorbed hydrogen in 09Mn2Si steel is 7.4 ... 7.6, and in 08Cr18Ni10T steel - 3.7 ... 4.6 cm3/dm2. The number of diffusion-mobile hydrogen (СH200 ) is 3,8 ... 5,2 times less than of hydrogen with higher energy connection with the metal that is desorbed at 800°C (СH800). It is shown that at PH2S = 1 atm and 80°C carbon dioxide under partial pressure of 15 and 30 atm increases the corrosion rate of 09Mn2Si steel in ~ 2.2 and 3.8 times, and 08Cr18Ni10T steel - in ~ 2.3 times. By increasing the partial pressure of CO2 to 30 atm, the amount of hydrogen absorbed in 09Mn2Si steel evenly increases from 7.5 to 18.6 cm3/dm2, and in 08Cr18Ni10T steel decreases from 3.7 to 1.4 cm3/dm2. Product Description popup.authors Івашків Василь Романович Антощак Ігор Миколайович Дацко Богдан Миколайович Дячук Алла Іллівна Чумало Галина Василівна Чучман Марян Романович popup.nrat_date 2020-04-02 Close