Vili Reamer
Fuafua mo maualuga ROP i viliina loloto ma faigata faʻapipiʻiga, PDC vili siʻu taimi uma drills mai le eleele i lalo lalo saʻo ma le laʻititi poʻo se tasi tamoʻe, sefe tele aofaʻi o viliina taimi ma tau.
Eseese mai le tili, o le PDC drill bit e tamoʻe ma maualalo le WOB ae o le Higher RPM, o lea e masani ona galue ma downhole afi e piki ai le saoasaoa o le saoasaoa.
O le faʻatinoina o le PDC drill bit e faʻalagolago tele ile tipiina o le PDC, matou te saunia ni fofo tulaga ese i ni manaʻoga faʻapitoa i ituaiga fesuiaʻiga.
O le PDC reamer o se aoga mea faigaluega mo le viliina malu-auala faigata faʻavaeina. O le ata ma tuʻufaʻatasia ulu faʻatonutonu e faʻafaigofie ai le faʻagaioiga o le toe faʻaola.
PDC reamer ua fuafuaina mo vaivai ele, shale, medium-hard shale ma papaʻamu, ma e faapitoa aoga i cohesive formations e fetaiaʻi spalling faʻafitauli. O le sui suia e mafai ona faʻaauau pea ona fufulu le tipiina fausaga o reamer, lea e mafai foi ona faʻamamaina tipi i le vaieli i le taimi, lelei faʻaleleia le ROP ma ata.
O lona PDC tipiina fausaga e talafeagai mo faʻavae eseese. O le tele o le reamer e lautele. E talafeagai mo eseese eseese o borehole reaming gaioiga. O le maualuga-malosi tino mamanu mafai lelei faʻaleleia faʻaaoga olaga ma ata puʻeina.
I faʻalaʻau faʻagaoioi viliina faʻagaioiga, o le faʻapitoa faʻavae o le reamer faia le borehole faʻalelei ma sili atu mautu. O le tulaga ese malamala flute mamanu mafai ona vave faʻamamaina le tipi ma vili vave i lalo o itiiti torque ma le mamafa.
Tagata faʻatau mafai ona filifili le talafeagai fetaui vavaeina e tusa ai ma ituaiga eseese.
