Eseese foliga o tipi PDC

O le viliina o se galuega taua i le gaosiga o suauu ma kesi. PDC bits (fa'aigoa foi Polycrystalline Diamond Compact bit) e masani ona faʻaaogaina i le faʻagasologa o le viliina. O le pusi PDC o se ituaiga o pusi e aofia ai le tele o mea tipi Polycrystalline Diamond (PCD) o loʻo faʻapipiʻi i le tino uʻamea ma tipi i totonu o maʻa e ala i le sele i le va o tipi ma le maʻa.

O le tipi o le PDC o se vaega taua tele o le vili vili, fa'apea fo'i ma se solofanua galue o le viliina. Eseese foliga o le PDC cutter e faʻamoemoe e faʻafetaui tulaga eseese o galuega. O le filifilia o foliga saʻo e taua tele, lea e mafai ona faʻaleleia atili ai lau galuega ma faʻaitiitia le tau o le viliina.

E masani lava, matou te vaevaeina le PDC cutter e pei o lalo:

1． PDC mafolafola tipi

2． PDC faamau

O tipi mafolafola PDC e masani ona faʻaaogaina mo le viliina o fasi i totonu o fanua eliina ma suauʻu. E mafai foʻi ona faʻaaogaina i le taimane autu ma le PDC.

Autu Autu mo tipi PDC:

• Maualuluga (maualalo porosity)

• Tulaga maualuga fa'atasi & fa'atulagaina

• La'ei maualuga ma fa'a'a'ai

• Mausalī maualuga vevela

• Fa'atinoga sili ona lelei o lo'o maua ile maketi

PDC mafolafola tipi tipi laina mai le 8 i le 19mm::

O faʻamatalaga o loʻo i luga e mo tagata faʻaoga e filifili mai ai. I le taimi lava e tasi, o faʻamatalaga eseese o oloa e mafai ona gaosia ma faʻatautaia e tusa ai ma manaʻoga o tagata faʻaoga.

I le tulaga lautele, o tipi tetele (19mm i le 25mm) e sili atu le malosi nai lo tama'i tipi. Ae ui i lea, e mafai ona latou faʻatuputeleina le fesuisuiai o le malosi.

O tipi laiti (8mm, 10mm, 13mm ma le 16mm) ua faʻaalia e vili i le maualuga maualuga o le faʻaogaina (ROP) nai lo tipi tetele i nisi faʻaoga. O se tasi o ia fa'aoga o le limestone mo se fa'ata'ita'iga. O fasi ua mamanuina ma ni tipi laiti ae o le tele o ia mea e mafai ona tatalia le maualuga o aafiaga o uta.

E le gata i lea, o tipi laiti e maua ai ni tipi laiti ae o tipi tetele e maua ai ni tipi tetele. O tipi tetele e ono mafua ai faʻafitauli ile faʻamamaina o le pu pe afai e le mafai e le sua viliina ona ave i luga le tipi.

PDC amo

O le PDC e faʻaaogaina e avea o se antifriction bearing mo downhole motor, lea e masani ona faʻaaogaina i kamupani suauʻu auaunaga ma fale afi afi lalo-pu. PDC e iai ituaiga eseese e aofia ai le PDC radial bearing, PDC thrust bearing.

PDC bearings e matua tete'e i le ofuina. Pe a faatusatusa i le tungsten carbide masani poʻo isi paʻu uʻamea malo, o le ola o taimane e 4 i le 10 taimi le umi, ma e mafai ona latou faʻaogaina i le maualuga o le vevela (o le taimi nei o le maualuga o le vevela o le 233 ° C). O le PDC faʻapipiʻiina e mafai ona faʻafefeina le mamafa tele mo se taimi umi, ma o le maualalo o le gau i totonu o le faʻapotopotoga faʻapipiʻi e faʻateleina ai le mana faʻainisinia.

O faamau PDC e masani ona faʻaaogaina mo le DTH drill bit, cone bit, ma taimane piki.

O piki taimane e masani lava ona faʻaaogaina mo masini eli, e pei o le faʻaauau pea o paʻu, Longwall shearer drums, tunnel boring machines (talita masini faʻavae, rotary vili rig, tunneling, trenching machine drums, ma isi)

O fa'amau PDC e masani ona aofia ai:

(1) PDC domed buttons: e masani ona faʻaaogaina mo le DTH drill bit.

(2) PDC conical buttons: e masani ona faʻaaogaina mo le cone bit.

(3) PDC parabolic buttons: e masani ona faʻaaogaina mo le tipiina fesoasoani.

Pe a faatusatusa i faamau tungsten carbide, PDC faamau e mafai ona faaleleia abrasive tetee sili atu i le 10 taimi.

PDC fa'amau fa'amau

PDC tipi conical

PDC parabolic buttons

Vagana mo lapopoa masani, e mafai foi ona matou gaosia mo lau ata tusi.

Faʻafeiloaʻi e suʻe zzbetter PDC cutters, faʻatinoga lelei, lelei faifaipea, ma tau mataʻina.