Kukhalapo kwa madzi kumapitilira kwakukulu kwa mpweya wachilengedwe, kupangitsa mpweya kukhala wopanda tanthauzo, kuyenda pa mapaipi kapena ozizira kwambiri; Komanso amapanganso hydrocarbon hydrate kuti mutseke ndikutseka zida ndi mapaipi; Ndiosavuta kuchita ndi H2S ndi CO2 mu gasi lachilengedwe komanso zida zamapaipi. Kuzama kwambiri ndi kuyanika kwa mpweya wachilengedwe wokhala ndi siment ndi njira yogwiritsidwa ntchito kwambiri komanso yokhwima kwambiri.
H2S ndi CO2 mpweya wachilengedwe uzichita ndi madzi ndi zida zamapaipi kwambiri; Mafuta achilengedwe acid okhala ndi zochulukirapo zopitilira muyeso ziyenera kugwiritsidwa ntchito nthawi yayitali kudzera pakutsuka komanso kuyika. Sivel sheecular sive amagwiritsidwa ntchito kwambiri pochotsa zosayera monga H2S, CO2 mu mpweya
Zogulitsa:Jz-zng molecular sive