Nga paerewa hei whakamahi i nga kaituhi-a-roto me te kaiwhakarato Central-Welded Slip-on Centralizer

7. Ko te taputapu drill pereki kotahi-piko me te undersher Welded Slip-on Centralizer ka ahei te whakahaere i te ngoikoretanga i te wa e keri ana te puhui, whakanui i te roa o te waahanga keri whakahiato, whakaitihia te dogleg o te waahanga, me te whakarite kia maeneene te poka. . Ko te diameter o waho o te centralizer undersized te tikanga 5 ~ 8mm iti ake i te moka drill diameter o waho.