Q1: Cov kauj ruam tseem ceeb hauv qhov hluav taws xob rau pipeline li cas?
A1:Cov kauj ruam suav nrog kev tshawb fawb, trenching, yeeb nkab stringing, kho tshuab vuam, kev npaj kho dua tshiab, txo qis-hauv qab, thiab hydrotesting. Welds yog soj ntsuam los ntawm NDT (piv txwv li, xoo hluav taws xob). Tsim kom yog khoov kev zam kev ntxhov siab ntau. Cov kav dej tawm ntawm ntug dej yuav siv S-Lay lossis J-Lay Txoj Kev. Ua raws li cov kev cai ib puag ncig yog qhov tseem ceeb.
Q2: Npaum li cas line kav dej welded hauv daim teb?
A2:Teb vuam siv cov plaub hau hlau arc vuam (smaw) lossis cov txheej txheem siv tshuab. Preheat thiab tom qab weld kev kho cua sov (duab) tiv thaiv kev tawg. Welders yuav tsum muaj ntawv tso cai rau API 1104 tus qauv. Soj ntsuam suav nrog kev pom, siv, thiab RT. Cov welds phem tuaj yeem ua rau muaj kev lom zem lossis ua tsis tiav.
Q3: Dab tsi yog pipeline npua?
A3:Pigging cuam tshuam nrog xa cov khoom siv (npua) los ntawm cov kav dej kom tu, tshuaj xyuas, lossis sib cais. Ntse npua siv cov sensors los kuaj corrosion lossis dents. Tu cov npua tshem tawm cov khib nyiab kom tswj cov dej txaus. Pigging yog ua tiav thaum lub sijhawm ua haujlwm, txij nkawm, lossis decommissioning.
Q4: Yuav ua li cas raj txwv kav dej Nrhiav?
A4:Cov hau kev suav nrog kev tshuaj xyuas siab, acousticectors, Fiber Optics, thiab Scada. Tus npua ntse nrog sib nqus flux so (MFL) lossis ultrasonic sensors pinpoint tej yam tsis xws luag. Drones thiab Tratellation soj ntsuam cov chaw taws teeb. Cov kev pom ntxov los tiv thaiv ib puag ncig kev puas tsuaj.
Q5: Dab tsi yog kev ntxhov siab corrosion cracking (SCC), thiab nws yuav tiv thaiv li cas?
A5:SCC tshwm sim hauv qab tensile muaj kev ntxhov siab hauv kev xeb ib puag ncig. Kev tiv thaiv muaj kev xaiv kom tsim nyog (piv txwv li, x65 hlau), tsho loj, thiab kev ntxhov siab-txhawb kev kho mob kub. Kev tshawb xyuas ib txwm thiab pH tswj cov dej thauj mus los txo cov kev pheej hmoo.
