PDC, lossis polycrystalline pob zeb diamond compact, cutters tau dhau los ua kev hloov pauv hauv kev lag luam drilling. Cov cuab yeej txiav no tau hloov cov tshuab drilling los ntawm kev ua kom zoo dua qub thiab txo cov nqi. Tab sis qhov twg PDC cutters tuaj ntawm, thiab ua li cas lawv thiaj li nrov?
Keeb kwm ntawm PDC cutters hnub rov qab mus rau xyoo 1950 thaum cov pob zeb hluavtaws tau tsim thawj zaug. Cov pob zeb diamond no tau tsim los ntawm kev siv graphite rau kev kub siab thiab kub, tsim cov khoom siv uas nyuaj dua li pob zeb diamond. Synthetic diamonds sai sai tau nrov nyob rau hauv kev lag luam daim ntaub ntawv, nrog rau drilling.
Txawm li cas los xij, kev siv cov pob zeb hluavtaws hluavtaws hauv qhov drilling yog qhov nyuaj. Cov pob zeb diamond feem ntau yuav tawg lossis tshem tawm ntawm lub cuab yeej, txo nws txoj kev ua haujlwm thiab yuav tsum tau hloov ntau zaus. Txhawm rau daws qhov teeb meem no, cov kws tshawb nrhiav tau pib sim nrog kev sib txuas cov pob zeb hluavtaws nrog lwm cov ntaub ntawv, xws li tungsten carbide, los tsim cov cuab yeej siv tau ntev dua thiab muaj txiaj ntsig zoo.
Hauv xyoo 1970, thawj PDC cutters tau tsim, muaj cov pob zeb diamond txheej sib txuas rau tungsten carbide substrate. Cov cutters no tau pib siv hauv kev lag luam mining, tab sis lawv cov txiaj ntsig sai sai tau pom meej hauv cov ntawv thov roj thiab roj. PDC cutters muab qhov nrawm dua thiab ua haujlwm zoo dua drilling, txo cov nqi thiab nce cov khoom tsim tau.
Raws li thev naus laus zis txhim kho, PDC cutters tau dhau los ua ntau dua, nrog cov qauv tshiab thiab cov ntaub ntawv ua kom lawv cov kav ntev thiab ntau yam. Niaj hnub no, PDC cutters yog siv nyob rau hauv ib tug ntau yam ntawm drilling daim ntaub ntawv, xws li geothermal drilling, mining, kev tsim kho, thiab lwm yam.
Kev siv cov PDC cutters kuj tau ua rau kev nce qib hauv cov txheej txheem drilling, xws li kab rov tav drilling thiab kev taw qhia drilling. Cov tswv yim no tau ua tiav los ntawm kev ua kom tau zoo thiab ua haujlwm ntev ntawm PDC cutters, tso cai rau kev ua kom zoo dua thiab tswj tau qhov drilling.
Hauv kev xaus, PDC cutters muaj keeb kwm nplua nuj hnub rov qab los ntawm kev tsim cov pob zeb hluavtaws hauv xyoo 1950. Lawv cov evolution thiab kev loj hlob tau ua rau muaj kev nce qib tseem ceeb hauv kev siv tshuab drilling, txhim kho kev ua tau zoo, txo cov nqi, thiab nthuav dav ntau yam kev siv. Raws li qhov kev thov kom nrawm dua thiab ua tau zoo dua drilling txuas ntxiv, nws yog qhov tseeb tias PDC cutters yuav tseem yog ib qho tseem ceeb ntawm kev lag luam drilling.
Post lub sij hawm: Mar-04-2023
