Kev ua haujlwm thiab kev faib tawm ntawm hydraulic cement retainers

Cov cement retainer feem ntau yog siv rau kev sib khi ib ntus lossis ruaj khov los yog cov cementing txuas ntxiv ntawm cov roj, roj, thiab dej txheej.Cov cement slurry yog squeezed los ntawm cov retainer rau hauv qhov dej seem ntawm lub annulus uas yuav tsum tau muab kaw los yog mus rau hauv cov kab nrib pleb nyob rau hauv tsim, pores kom tiav lub hom phiaj ntawm sealing thiab xau kho.Cov cement retainer muaj ib tug compact qauv, me me txheej kab. thiab yog ib qho yooj yim rau tho tawm.Haum rau ntau yam specifications ntawm casing.Raws li ib tug loj tus naj npawb ntawm cov roj thiab roj teb nkag mus rau theem siab heev ntawm txoj kev loj hlob, cov kev tsim kho tau dhau los ua ntau thiab ntau zaus, thiab qee qhov chaw roj txawm xav tau ntau txhiab lub qhov dej los tsim txhua xyoo.

Cov pa cement retainers tau muab faib ua ob hom, uas yog mechanical thiab hydraulic.Kev teeb tsa tshuab siv kev sib hloov thiab nqa los teeb tsa cov cement retainer rau hauv qab.Hauv kev siv cov tswv yim, qhov no tso cov kev xav tau siab dua ntawm tus neeg teb xov tooj kev sib dhos ua tau zoo thiab qhov kev paub ntawm qhov chaw, thiab hauv cov qhov dej nrog cov kev xav loj, vim qhov tsis muaj peev xwm xa cov torque, cov neeg kho tshuab cement retainers feem ntau tsis pom zoo.Hom hydraulic tuaj yeem kov yeej cov kev tsis txaus no.Lub hydraulic retainer yog yooj yim siv thiab tuaj yeem siv rau hauv qhov dej inclined.

Nyob rau hauv cov cuab yeej siv uas twb muaj lawm, cov cuab yeej siv cov cement retainer tuaj yeem ua tiav cov txheej txheem ntawm kev teeb tsa, kev teeb tsa, kev sib khi, nyem thiab tso tawm hauv ib qho kev mus txawv tebchaws;thaum uas twb muaj lawm hydraulic cement retainer yuav tsum tau ob drilling mus ncig teb chaws.Txhawm rau ua kom tiav kev tsim kho, qhov no ua rau cov txheej txheem ua haujlwm ntawm cov cement retainer tsis tshua muaj siab thiab nyuaj, thiab cov nqi tsim kho thiab cov nqi kuj tseem ceeb, uas cuam tshuam rau kev ua haujlwm ntawm kev ua haujlwm.