API 5 CTyog tus qauv kev qhia tshwj xeeb rau steel casing thiab tubing siv nyob rau hauv qhov dej hauv kev lag luam roj thiab roj.
Ntxiv nrog rau cov casing thiab tubing, nws kuj suav nrog cov pob qij txha, cov hlua txuas, cov khoom sib txuas thiab cov khoom siv ntxiv, thiab tsim cov kev cai rau peb cov khoom tshwj xeeb (PSL-1, PSL-2 thiab PSL{{2} }). Cov kev cai ntawm PSL-1 yog lub hauv paus ntawm tus qauv no.
Qib General
• J55/K55
• N80/N80Q/L80
• C90
• R95/T95
• P110/C110
• Q125
txuas
API 5CT yog tsim rau cov kev sib txuas hauv qab no raws li API SPEC 5B:
• SC: Lub tes tsho luv luv
• LC: oblong threaded tes tsho
• BC: Trapezoidal threaded casing
• NU: Cov yeeb nkab roj uas tsis yog tuab
• EU: Sab nraud thickened raj
• IJ: Integral yeeb nkab txuas
