I-PDC Cutter yeDayimane yokuBela

Umzi-mveliso osebenza kwezona ndawo zinzima ehlabathini maxa wambi kufuneka ubize ezona mpahla zinzima ukuze zinxibe.

Ngena kwidayimani yeshishini, eyafunyanwa kwi-1950s. Iidayimani zokwenziwa ziyakwazi ukunyamezela i-abrasive, ubushushu obuphezulu, kunye neendawo ezinobungozi kwaye zime kwimithwalo ephezulu.

Ishishini le-oyile nerhasi kudala lamkela idayimani yoshishino yepolycrystalline diamond compact (PDC) drill bits, ezathi zaziswa ngeminyaka yoo-1970. Ayizizo zonke (PDC) idayimani efanayo. Inokubonakala ifana, imnyama phezulu kunye nesilivere ezantsi, kodwa ayisebenzi ngokufanayo. Yonke indawo yokomba inemingeni yayo ekhethekileyo. Yiyo loo nto iinjineli kufuneka zilungelelanise idayimani eyiyo kwiimeko ezifanelekileyo zokomba.

Idayimane ayisetyenziswa kakuhle njengesixhobo sobunjineli, kwaye ingasetyenziswa kwezinye izinto ezininzi, njengokunxiba iinxalenye ezinjengeevalvu kunye netywina kwiindawo ezirhabaxa.

Kule minyaka ingama-20 idluleyo, iinjineli ziye zafaka ezona zixhobo zinzima emhlabeni ukuze zikhusele iibheringi zezixhobo ezifana neenjini zodaka, iimpompo ezingaphantsi kombane (ESPs), iiinjini zomoya, kunye nezixhobo zokomba eziya ngqo.

I-Polycrystalline Diamond iibheringi zeradial, ekwabizwa ngokuba yi-PDC iibheringi, iqulethwe ngoluhlu lwabasiki be-PDC abadityanisiweyo (ngokuqhelekileyo ngokujongiwa) kumakhonkco okuthwala. Iseti ye-radial ye-PDC eqhelekileyo ibandakanya umsesane ojikelezayo kunye nomileyo. Ezi khonkco zimbini zichasene nomphezulu wePDC kwidayamitha yangaphakathi yeringi enye ngokudibana ngokuthe ngqo nomphezulu wePDC kwidayamitha yangaphandle yeringi yokukhwelana.

Ukusebenzisa iibheringi zedayimani kwiinkqubo ezijikelezayo ezijikelezayo kunokunyusa ubomi besixhobo, ukunciphisa ubungakanani besixhobo kunye nokunciphisa ubunzima ngokususa amatywina. Kwiimoto zodaka, kunciphisa ukugoba kwesixhobo kwaye kwandisa umthamo womthwalo.

Awukwazi ukulawula into esemanzini olwandle okanye udaka lokwemba, nokuba yintlabathi, ilitye, intlenga, ubumdaka, okanye ubumdaka, konke kuhamba kanye ngedayimani. Iibheringi zedayimani zinokuphatha "yonke into."

Ukuba itywina lesiqhelo liyaphuka, iasidi, amanzi olwandle, kunye nodaka lokwembiwa lunokungena, kwaye ukuthwala kuya kusilela. I-diamond-ephethe idayimani ijika ubuthathaka besiqhelo besiqhelo entloko. Iibheringi zedayimani kwimizi-mveliso zisebenzisa amanzi olwandle ukuwagcina epholile, ajike ubuthathaka bube sisisombululo.

Ukuba unomdla kwi PDC cutters kwaye ufuna ulwazi oluthe vetshe kunye neenkcukacha, UNGAQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.