Tubing ib txwm muaj txoj kab uas hla me dua li casing, tshwj tsis yog rau 4 1/2-inch diameter. Ib txoj kab uas hla sab nraud ntawm 114.3 hli (4 1/2 ntiv tes) raug suav hais tias yog qhov pib thiab tuaj yeem ua tau casing lossis tubing. Txhua yam me me hu ua tubing, txhua yam loj dua yog casing.
Lub hom phiaj: Casing feem ntau yog siv los txhawb thiab tiv thaiv lub qhov dej los ntawm kev tawg nyob rau hauv lub siab ntawm ib puag ncig formations. Nws ua kom muaj kev ncaj ncees ntawm lub qhov dej thiab tiv thaiv kev ua haujlwm tsis zoo. Tubing, ntawm qhov tod tes, yog tsim los thauj cov kua xws li roj thiab roj los ntawm lub reservoir mus rau saum npoo.
Loj: Casing feem ntau muaj txoj kab uas hla loj dua piv rau tubing. Casing qhov ntau thiab tsawg feem ntau yog nyob ntawm 4 1/2 ntiv tes mus rau 20 ntiv tes hauv txoj kab uas hla, hos tubing feem ntau yog nyob nruab nrab ntawm 1 1/2 ntiv tes thiab 4 1/2 ntiv tes inch.
Ntev: Casing nyhav ntev dua tubing, feem ntau ncav cuag ntev txog 40 ko taw lossis ntau dua. Tubing, txawm li cas los xij, feem ntau luv dua, feem ntau ntawm 25 thiab 30 ko taw ntev.
Thickness: Casing yog tsim nrog cov phab ntsa tuab dua piv rau tubing. Qhov ntxiv tuab no yog tsim nyog los tiv thaiv qhov hnyav ntawm cov pob zeb uas nyob ib puag ncig thiab lub siab ntawm cov kua dej hauv qhov dej. Lub thickness ntawm casing tuaj yeem sib txawv nyob ntawm qhov tob thiab siab ntawm lub qhov dej, feem ntau yog li ntawm {{0}}.25 mus rau 1 nti. Tubing, feem ntau yog cov kav dej rau cov kua dej, muaj cov phab ntsa nyias, feem ntau yog li ntawm 0.10 mus rau 0.25 nti.
Khoom siv: Casing feem ntau yog ua los ntawm steel, xaiv rau nws lub zog thiab durability nyob rau hauv ntau yam zoo. Qib thiab hom steel siv rau casing yog xaiv raws li qhov zoo ntawm qhov tob, siab, thiab corrosive ib puag ncig. Tubing, txawm li cas los xij, tuaj yeem tsim los ntawm ntau yam khoom siv xws li hlau, yas, lossis cov khoom sib xyaw, nyob ntawm seb cov kev xav tau tshwj xeeb ntawm lub qhov dej thiab cov kua dej thauj.
Tubing thiab casing los ntawm Vigor yog tag nrho cov tsim raws li API 5CT thiab 5B cov qauv, thiab tag nrho cov tubing thiab casing tuaj yeem kho raws li koj xav tau. Yog tias koj txaus siab rau Vigor cov khoom, thov tsis txhob yig tiv tauj peb.
