1. ** Hom yeeb nkab siv tau zoo li cas? **
* ** Thawj cov yeeb nkab steel hlau ** (tshwj xeeb yog 4 carbon steel **). Nws yog feem ntau tsim mus rau ** cov kev qhia API ** (piv txwv li, API 5CT) rau lub zog, durability, thiab xov siv tau. ** PVC ** lossis **
2. ** Qhov twg them rau? **
* Casing yog siv ** sab hauv driller qhov dej ** ntawm ** Roj kom zoo, roj zoo, dej ua haujlwm zoo, thiab saib xyuas cov dej num ib puag ncig **. Nws kab lub borehole los ntawm sab saum npoo mus rau lub hom phiaj qhov tob lossis ntawm cov chaw muaj geological.
3. ** Dab tsi yog cov yeeb nkab twg siv rau? **
* Casing yeeb nkab siv rau:
* ** Tiv thaiv kev khaus ntawm kev sib tsoo. **
* ** Cais tawm cov qauv sib txawv sib txawv ** (piv txwv li, ua kom dej txia dej cais cais tawm ntawm cov thaj chaw saline lossis roj \/ roj ntawm cov roj).
* ** Muaj cov ntawv tshaj tawm ua lag luam ** thiab tiv thaiv kev tsiv teb tsaws ntawm thaj chaw.
* ** Muab cov conduit ruaj khov ** rau cov cuab yeej drill, ntau lawm tubing, thiab ua tiav cov khoom siv ua tiav.
* ** Kev tiv thaiv hauv av ** los ntawm kev paug los ntawm cov kua dej saum npoo av lossis tob dua, tsim cov kua tsis xav tau.
* ** Muab cov txheej txheem kev ncaj ncees ** Rau Wellhead thiab cov cuab yeej tiv thaiv tshuab.
4. ** Dab tsi yog ib qho piv txwv ntawm casing? **
* ** Ib qho roj zoo: ** Ib qho roj zoo yuav siv ntau cov hlua ntawm cov txheej pob zeb: thiab thaum kawg **
5. ** Vim li cas thiaj tseem ceeb? **
* Casing yog qhov tseem ceeb heev vim tias nws:
* ** Ua kom paub txoj kev tswj tau: ** Tiv thaiv kev tswj hwm kev tsis tuaj yeem tsim cov kua (roj, dej) rau saum npoo av (tshuab hluav taws xob), uas yog qhov kev phom sij kev nyab xeeb.
* ** Kev tiv thaiv hauv av: ** Txheeb cais los ntawm cov dej tsis huv, dej haus dej tsis huv, lossis dej qab ntsev.
* ** RAWS LI BOREHOLE STABTIONS: ** Tiv thaiv kev vau ntawm lub qhov drument, tso cai drilling kom ncav cuag cov phiaj xwm tob thiab ua kom muaj kev ua haujlwm zoo.
* ** Tiv thaiv kev sib txuas lus ntawm qhov chaw sib txuas lus: ** Tiv thaiv kev sib txuas lus ntawm cov khaubncaws sab nraud ntawm geological sib txawv (piv txwv li, nres cov dej cuam tshuam rau hauv cov roj-chaw tsim khoom).
* ** Tsim txoj kev nyab xeeb: ** Muab cov conduit ruaj khov, mus tas mus li rau cov khoom siv tsim khoom thiab kua.
* ** Cov ntawv Foundation rau Wellhead: ** Anchet lub chaw ua haujlwm tseem ceeb thiab tiv thaiv kev tiv thaiv (BOP).
