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Information × Registration Number 0221U101012, (0120U100777) , R & D reports Title Establishing patterns of flooding and corrosion-mechanical destruction of low-alloy pipe steels in the environment of highly mineralized reservoirs containing carbon dioxide and hydrogen sulfide popup.stage_title Дослідження корозійних та корозійно-механічних властивостей сталей P-110, Q-125 та V-150 у модельній пластовій воді за підвищеної температури та підвищеного тиску вуглекислого газу. Head Khoma Myroslav S., Доктор технічних наук Registration Date 12-01-2021 Organization Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine popup.description1 To establish regularities of influence of concentration of carbon dioxide and hydrogen sulfide in formation waters on corrosion-mechanical destruction of pipe steels (P-110, Q-125 and V-150) in relation to their corrosion rate and flooding. popup.description2  It is established that in the environment of model formation water at t = 25 ° С saturated with carbon dioxide the corrosion rate of steels V-150, P-110, Q-125 is in the range of 0.296… 0.315 g / (m2 ∙ h). The corrosion rate of these steels in MFW at t = 60 ° С and Р (СО2) = 6 MPa is on ~ 8.3; 6.7 and 7.8 times higher, which is associated with an increase in the speed of electrode processes with increasing temperature. Electrochemical studies have shown that at the beginning of exposure in MFW corrosion occurs under cathodic control with hydrogen depolarization and a rate of 0.010… 0.014 mA/cm2. It was found that the ultimate yield strength and ultimate strength of steels P110, V150, and Q125 in air and in model reservoir water at PCO2 = 1 atm differ slightly. In MFW, the relative elongations and narrowings change significantly: for steels V -150, Q125 decreases by 4.8… 5.9 and 4.4… 4.8 times. For P-110 steel, the corrosive environment has the least effect on the plastic properties: ψ decreases by ~ 1.7 times, and δ changes slightly. For P-110 steel, the corrosive environment has the least effect on the plastic properties: ψ decreases by ~ 1.7 times, and δ changes slightly. The results of the research work will be used by DTEK OIL&GAS to select casing pipes made of V150, P110, Q125 steels depending on their operating conditions. Product Description popup.authors Ivashkiv Vasyl R. Bilyi Levko M. Vasyliv Khrystyna B. Vynar Vasyl A. Halaichak Svitlana A. Holovchuk Myron Ya. Danyliak Olena-Mariia M. Datsko Bohdan M. Diachuk Alla I. Zin Ivan M. Kornii Serhii A. Kupovych Romana B. Mahlatiuk Liudmyla A. Mardarevych Roman S. Pokhmurskyi Vasyl I. Rizun Yuliia Ya. Ratska Nadiia B. Rudkovskyy Yevhen M. Semenyna Ivan Yo. Slobodjan Zvenomyra V. Tymus Mariana B. Khlopyk Olha P. Khoma Myroslav S. Khudyk Petro M. Chuchman Marian R. popup.nrat_date 2021-01-12 Close

Information × Registration Number 0221U101012, (0120U100777) , R & D reports Title Establishing patterns of flooding and corrosion-mechanical destruction of low-alloy pipe steels in the environment of highly mineralized reservoirs containing carbon dioxide and hydrogen sulfide popup.stage_title Дослідження корозійних та корозійно-механічних властивостей сталей P-110, Q-125 та V-150 у модельній пластовій воді за підвищеної температури та підвищеного тиску вуглекислого газу. Head Khoma Myroslav S., Доктор технічних наук Registration Date 12-01-2021 Organization Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine popup.description1 To establish regularities of influence of concentration of carbon dioxide and hydrogen sulfide in formation waters on corrosion-mechanical destruction of pipe steels (P-110, Q-125 and V-150) in relation to their corrosion rate and flooding. popup.description2  It is established that in the environment of model formation water at t = 25 ° С saturated with carbon dioxide the corrosion rate of steels V-150, P-110, Q-125 is in the range of 0.296… 0.315 g / (m2 ∙ h). The corrosion rate of these steels in MFW at t = 60 ° С and Р (СО2) = 6 MPa is on ~ 8.3; 6.7 and 7.8 times higher, which is associated with an increase in the speed of electrode processes with increasing temperature. Electrochemical studies have shown that at the beginning of exposure in MFW corrosion occurs under cathodic control with hydrogen depolarization and a rate of 0.010… 0.014 mA/cm2. It was found that the ultimate yield strength and ultimate strength of steels P110, V150, and Q125 in air and in model reservoir water at PCO2 = 1 atm differ slightly. In MFW, the relative elongations and narrowings change significantly: for steels V -150, Q125 decreases by 4.8… 5.9 and 4.4… 4.8 times. For P-110 steel, the corrosive environment has the least effect on the plastic properties: ψ decreases by ~ 1.7 times, and δ changes slightly. For P-110 steel, the corrosive environment has the least effect on the plastic properties: ψ decreases by ~ 1.7 times, and δ changes slightly. The results of the research work will be used by DTEK OIL&GAS to select casing pipes made of V150, P110, Q125 steels depending on their operating conditions. Product Description popup.authors Ivashkiv Vasyl R. Bilyi Levko M. Vasyliv Khrystyna B. Vynar Vasyl A. Halaichak Svitlana A. Holovchuk Myron Ya. Danyliak Olena-Mariia M. Datsko Bohdan M. Diachuk Alla I. Zin Ivan M. Kornii Serhii A. Kupovych Romana B. Mahlatiuk Liudmyla A. Mardarevych Roman S. Pokhmurskyi Vasyl I. Rizun Yuliia Ya. Ratska Nadiia B. Rudkovskyy Yevhen M. Semenyna Ivan Yo. Slobodjan Zvenomyra V. Tymus Mariana B. Khlopyk Olha P. Khoma Myroslav S. Khudyk Petro M. Chuchman Marian R. popup.nrat_date 2021-01-12 Close