Yintoni umahluko phakathi komzimba wentsimbi kunye nomzimba we-matrix PDC bit

I-PDC drill bit yenziwa kakhulu ngabasiki bePDC kunye nentsimbi, nto leyo edibanisa ukuqina kwentsimbi kunye nokungagugi kwe-polycrystalline diamond compact kwenza i-PDC bit ibe ne-footage ekhawulezayo kwinkqubo yokugrumba. I-PDC body body inesantya esikhawulezayo xa ithambile ngelixa i-PDC body matrix ichasene nokugugika, i-matrix body bit inokugrumba i-formage eqinileyo xa ithelekiswa ne-PDC body bit ngenxa yomzimba wayo we-tungsten carbide matrix, kodwa i-footage yayo icotha xa ithelekiswa ne-PDC body drill bit. Ukuba unomdla kuyo nayiphi na i-PDC bits, nceda unxibelelane neFar Eastern Drilling.

Iibhithi ze-PDC zeMatrix Body vs. Iibhithi ze-PDC zeMzimba zeNtsimbi

Ukuba usebenze ekugrumbeni ixesha elide, mhlawumbi ukhe weva ngee-PDC bits. I-PDC imele "i-polycrystalline diamond compact," echaza i-compound yezinto ezenza umphezulu wokusika kwezi bits. Zombini iMatrix Body PDC kunye ne-Steel Body PDC zenziwe ngale compound.

Ezi ziqwenga zinamagama amaninzi. Zidla ngokubizwa ngokuba:

• Iibhithi zePDC
• Iibhithi zedayimani ezixineneyo zePolycrystalline
• Iziqwenga zamazinyo ze-chip ezidityanisiweyo
• Iibhloko zokusika iidayimani zePolycrystalline

Iibhithi zePDC zihlala zisetyenziselwa ukubhola ioyile - kodwa zithandwa nakwamanye amashishini. Zadalwa ngo-1976 kwaye zithandwa nangoku njengakwixesha langoku.iibhithi ze-roller-cone(uhlobo lweqhekeza elinamacandelo ajikelezayo). Nangona iibhithi zePDC zinembali ende yempumelelo, ziyaqhubeka nokuguquka kwaye zihlala ziphucuka ngokusebenzisa ii-engile ezintsha nezintsha zokusika, amalungiselelo, kunye nezixhobo. Ezi bhithi zisebenza kakuhle kakhulu njengoko zisebenza ekususeni ukwakheka kwamatye endaweni yokuwatyumza. Unyaka ngamnye, inkqubela phambili entsha kwitekhnoloji iphucula ukusebenza kakuhle kweebhithi zePDC kwaye iphucula isantya sokugrumba.

Ezi bhithi zaziwa njengeebhithi “ezisuka empumlweni ziye ekugayweni” kwishishini lokugrumba – ziyawenza umsebenzi kwaye zinokuba luncedo kakhulu kwiinkonzo ezahlukeneyo kunye neentlobo zokwakheka—akukho zixhobo zishukumayo eziza kuxinana, akukho ngxaki, kukugrumba okusebenzayo kuzo zonke iimfuno zakho.

Zithini iiPDC Bits?

Kukho iindlela ezimbini eziphambili zeIibhithi zokubhola zePDC– iibhithi zePDC zomzimba we-matrix kunye neebhithi zePDC zomzimba wentsimbi. Zombini zibhithi ezingqukuva ezimile ngendlela efanayo ezinezakhiwo zokusika ezine ukuya kwezisibhozo, okanye iiblade, eziphuma embindini. Iblade nganye emva koko igqunywe ngee-cutters eziphakathi kweshumi ukuya kwamashumi amathathu. Ezi bithi zinemijelo yamanzi esasazekileyo ukuze iphole, kwaye kukho umlomo kwincopho yebhithi. Ukuba uzama ukucinga ngale bhithi, ibukeka ngathi sisithsaba esinokunxitywa yinkosi.

Iibhithi ze-PDC zisetyenziselwa ukubhola ioyile negesi, ukubhola i-geothermal, ukubhola imithombo yamanzi, ukubhola ulwakhiwo, ukwemba imigodi kunye nokubhola kwicala elithe tye.

Isayensi Engasemva Kwee-PDC Bits

Usenokuba ufundile esikolweni ukuba idayimani yeyona nto inzima kakhulu eyaziwayo ngumntu. Injalo! Kwaye ifanelekile ekusikeni ezinye izinto ezifana nokwakheka kwamatye okugrumba.

Iibhithi zePDC zisebenzisa iidayimani ezincinci, ezingabizi kakhulu, ezenziwe ngumntu kwizakhiwo zazo zokusika. Inkqubo yokwenza iidayimani kwezi bhithi iyinkimbinkimbi. Kulula, nantsi inkqubo yokwenza iibhithi zokubhola iidayimani:

• Iidayimani ezincinci ezenziweyo zenziwa
• Emva koko iidayimani zihlanganiswa zibe ziikristale ezinkulu
• Emva koko iikristale zibunjwa zibe ziitafile zedayimani
• Iitafile zedayimani emva koko zibotshelelwa kwisinyithi, ngokuqhelekileyo i-tungsten carbide, kunye ne-metallic binder
• Oku kuba yinxalenye yokusika ye-bit - kukho i-cutters ezininzi kwi-blade nganye ye-bit
• Emva koko izicuthi zincamathiselwa kwiiblade, ezincamathiselwa kumzimba wentonga.

Xa zizonke, izicucu kunye neeblade ezikwincam ye-PDC bit zisetyenziselwa ukusika iintlobo ngeentlobo zamatye.

Iidayimani zokwenziwa kwiibhithi zokubhola

Njengoko ubona, iidayimani zokwenziwa zezona zinto zibalulekileyo kwiibhiti zePDC. Ekwenzeni ezi biti, kwenziwa iinkozo ezincinci kakhulu zedayimani (ezibizwa ngokuba yi-diamond grit). Le grit ihlala ixesha elide kodwa ayizinzi kangako kwinqanaba leemolekyuli xa ishushu. Ngoko ke, ibhiti yakho yePDC isenokungasebenzi kakuhle ukuba ayipholiswanga ngokwaneleyo xa isetyenziswa.

Nangona kunjalo, iidayimani ezenziweyo azigugi kakhulu; zezona zinto zifanelekileyo zokugcina ixesha elide nokuqina. Uhlobo lwesinyithi luyatshintsha ukuba ukhetha i-matrix okanye i-steel body bit - kodwa idayimani ibalulekile. Ii-PDC bits zinokuhlala ixesha elide logama nje zipholile ngokwaneleyo.

Iibhithi zePDC zeMatrix Body