Nrog rau txoj kev loj hlob ntawm Tuam Tshoj txoj kev lag luam roj av, galvanized steel kav yog nce siv nyob rau hauv oilfields rau thauj cov roj crude. Yog li ntawd, cov zinc txheej tau dhau los ua ib qho kev txhim kho corrosion hauv cov roj crude uas muaj hydrogen sulfide thiab hauv aerated stratified dej uas muaj hydrogen sulfide. Yog li ntawd, qhov corrosion kuj ntawm galvanized steel kav nyob rau hauv cov roj ntau lawm tej yam kev mob yog heev txwv. Txawm li cas los xij, nws tseem tau tshaj tawm tias hauv cov dej hauv av uas muaj 240-400 mg / L ntawm hydrogen sulfide nyob ze cov roj qhov dej, lub neej ntawm cov kav dej galvanized yog 5 mus rau 6 npaug ntev dua li cov ungalvanized.
Yog hais tias galvanized steel kav yog annealed ntawm qhov kub ntawm 500 mus rau 550 degree rau kaum feeb, lub ntshiab zinc txheej yuav hloov mus rau hauv ib tug hlau-zinc alloy txheej. Qhov no alloyed galvanized steel yeeb nkab qhia tau zoo heev txhim kho corrosion kuj piv rau cov tsis-alloyed galvanized steel kav.
