Cov duab sib txawv ntawm PDC cutters

Drilling yog ib qho haujlwm tseem ceeb hauv kev lag luam roj thiab roj. PDC cov khoom (tseem hu ua Polycrystalline Pob Zeb Diamond Compact me ntsis) feem ntau siv rau hauv cov txheej txheem drilling. PDC me ntsis yog ib hom me me uas muaj ntau yam Polycrystalline Pob Zeb Diamond (PCD) cutters txuas rau lub cev me ntsis thiab txiav los ntawm pob zeb los ntawm kev txiav txiav ntawm cov txiav thiab pob zeb.

PDC cutter yog ib qho tseem ceeb heev ntawm kev xyaum me ntsis, kuj yog ib tug workhorse ntawm drilling. Cov duab sib txawv ntawm PDC cutter yog txhawm rau ua kom tau raws li cov haujlwm sib txawv. Kev xaiv cov duab zoo yog qhov tseem ceeb heev, uas tuaj yeem txhim kho koj txoj haujlwm ua haujlwm thiab txo tus nqi drilling.

Feem ntau, peb faib PDC cutter raws li hauv qab no:

1． PDC flat cutters

2． PDC nyees khawm

PDC ca cutters feem ntau yog siv rau drilling cov khoom hauv mining thiab roj drilling teb. Nws kuj tuaj yeem siv rau hauv pob zeb diamond core ntsis thiab PDC bearing.

Qhov zoo tshaj plaws rau PDC cutters:

• High ceev (tsawg porosity)

• High compositional & structural homogeneity

• Siab hnav thiab cuam tshuam

• Siab thermal stability

• Kev ua tau zoo tag nrho muaj nyob hauv khw

PDC ca cutter txoj kab uas hla ntawm 8 mus rau 19mm::

Cov specifications saum toj no yog rau cov neeg siv xaiv los ntawm. Nyob rau tib lub sijhawm, cov khoom sib txawv ntawm cov khoom tuaj yeem tsim thiab ua tiav raws li cov neeg siv khoom xav tau.

Raws li txoj cai dav dav, cov cutters loj (19mm txog 25mm) yog nruj dua li cov cutters me. Txawm li cas los xij, lawv tuaj yeem ua rau muaj kev hloov pauv torque.

Cov cutters me me (8mm, 10mm, 13mm thiab 16mm) tau pom tias tho qhov siab dua ntawm qhov nkag (ROP) dua li cov cutters loj hauv qee yam kev siv. Ib daim ntawv thov no yog limestone piv txwv. Cov khoom yog tsim los nrog cov cutters me me tab sis ntau ntawm lawv tuaj yeem tiv taus kev thauj khoom ntau dua.

Tsis tas li ntawd, cov txiav me me tsim cov txiav me me thaum cov cutters loj tsim cov txiav loj. Kev txiav loj tuaj yeem ua rau muaj teeb meem nrog kev tu lub qhov yog tias cov kua dej drilling tsis tuaj yeem nqa cov txiav.

PDC cov kabmob

PDC bearing yog siv los ua cov kabmob tiv thaiv kev tiv thaiv rau lub cev muaj zog downhole, uas yog siv dav hauv cov tuam txhab kev pabcuam roj thiab cov chaw ua haujlwm hauv lub qhov. PDC bearing muaj ntau hom xws li PDC radial bearing, PDC thrust bearing.

PDC bearings tiv taus hnav heev. Piv nrog rau cov tsoos tungsten carbide los yog lwm yam nyuaj alloy bearings, lub neej ntawm pob zeb diamond bearings yog 4 mus rau 10 lub sij hawm ntev dua, thiab lawv muaj peev xwm ua hauj lwm ntawm kub kub (tam sim no lub siab tshaj plaws kub yog 233 ° C). PDC cov kabmob muaj peev xwm nqus tau ntau dhau rau lub sijhawm ntev, thiab kev sib txhuam tsis tshua muaj nyob hauv cov kabmob sib dhos ntxiv ua rau lub zog xa hluav taws xob.

PDC nyees khawm feem ntau yog siv rau DTH laum me ntsis, cone ntsis, thiab pob zeb diamond de.

Pob zeb diamond xaiv yog siv rau cov tshuab mining, xws li nruam miner nruas, Longwall shearer nruas, qhov tho txawv tshuab (shield tshuab foundation, teb drilling rig, tunneling, trenching tshuab nruas, thiab lwm yam)

PDC nyees khawm feem ntau suav nrog:

(1) PDC domed nyees khawm: feem ntau yog siv rau DTH xyaum me ntsis.

(2) PDC conical nyees khawm: feem ntau yog siv rau lub khob me ntsis.

(3) PDC parabolic nyees khawm: feem ntau yog siv rau kev pab txiav.

Piv nrog rau cov nyees khawm tungsten carbide, PDC nyees khawm tuaj yeem txhim kho abrasive tsis kam ntau dua 10 zaug.

PDC domed nyees khawm

PDC conical cutters

PDC parabolic nyees khawm

Tsuas yog rau qhov ntau thiab tsawg, peb tuaj yeem tsim ib qho koj daim duab.

Txais tos kom pom zzbetter PDC cutters, kev ua tau zoo heev, zoo ib yam, thiab tus nqi zoo heev.