Polycrystalline diamond compact (PDC) le PDC drill bits li 'nile tsa hlahisoa' marakeng ka lilemo tse mashome a 'maloa.Nakong ena e telele ea PDC cutter le PDC drill bit ba bile le litšitiso tse ngata methating ea bona ea pele, hape ba bile le nts'etsopele e kholo.Butle-butle empa qetellong, likotoana tsa PDC butle-butle li ile tsa nkela likotoana tsa cone sebaka ka lintlafatso tse tsoelang pele ho sekheo sa PDC, botsitso ba hanyane, le sebopeho sa hydraulic.Li-bits tsa PDC joale li nka karolo e fetang 90% ea litšoantšo tsohle tsa ho cheka lefatšeng.
PDC Cutter e qapiloe pele ke General Electric (GE) ka 1971. PDC Cutters ea pele bakeng sa indasteri ea oli le khase e entsoe ka 1973 'me ka lilemo tse 3 tsa liteko le liteko tsa masimo, e hlahisoa khoebong ka 1976 ka mor'a hore e pakoe haholoanyane. e sebetsang hantle hofeta diketso tsa ho pshatla dikonopo tsa carbide.
Mehleng ea pele, sebopeho sa sehahi sa PDC se tšoana le sena: ntlha e chitja ea carbide, (bophara ba 8.38mm, botenya ba 2.8mm), le lera la daemane (botenya ba 0.5mm ntle le chamfer holim'a metsi).Ka nako eo, ho ne ho boetse ho e-na le Compax "slug system" PDC cutter.Sebopeho sa seha sena se ne se le tjena: PDC compax weld to the cemented carbide slug e le hore ho ka ba bonolo ho e kenya holim'a tšepe ea 'mele ea ho cheka, kahoo e tlisa boiketlo bo boholo ho moqapi oa li-drill.
Ka 1973, GE e ile ea leka PDC ea eona ea pele selibeng sebakeng sa King Ranch se karolong e ka boroa ea Texas.Nakong ea ts'ebetso ea ho phunya teko, bothata ba ho hloekisa hanyenyane bo ne bo nkoa bo le teng.Meno a mararo a ile a robeha lenonyeletsong la brazed, 'me meno a mang a mabeli a robeha hammoho le karolo ea tungsten carbide.Hamorao, k'hamphani e ile ea leka boro ea bobeli sebakeng sa Hudson, Colorado.Karolo ena ea boro e ntlafalitse sebopeho sa haeteroliki bakeng sa bothata ba ho hloekisa.Bit e fihletse ts'ebetso e ntlafetseng ho libopeho tsa sandstone-shale ka lebelo la ho cheka ka potlako.Empa ho na le liphapang tse 'maloa ho tloha mokolokong o reriloeng oa borehole nakong ea ho cheka, mme tahlehelo e nyane ea li-cutters tsa PDC e ntse e etsahala ka lebaka la khokahano ea brazing.
Ka April 1974, ho ile ha lekoa boro ea boraro sebakeng sa San Juan, Utah, USA.Karolo ena e ntlafalitse sebopeho sa leino le sebopeho sa leino.Biti e ile ea nkela likotoana tsa tšepe sebakeng sa seliba se haufi, empa molomo o ile oa theoha 'me karoloana ea senyeha.Ka nako eo, ho ne ho nkoa hore ho etsahala haufi le qetellong ea ho cheka bakeng sa sebopeho se thata, kapa bothata bo bakoang ke ho oela ha molomo.
Ho tloha ka 1974 ho isa ho 1976, lik'hamphani tse fapaneng tsa ho cheka le bo-rakhoebo ba ile ba lekola lintlafatso tse fapaneng ho PDC cutter.Mathata a mangata a neng a le teng a ne a lebisitsoe ho lipatlisiso.Liphetho tse joalo tsa lipatlisiso li ne li kopantsoe ka har'a meno a Stratapax PDC, a qalileng ke GE ka December 1976.
Phetoho ea lebitso ho tloha Compax ho ea Stratapax e thusitse ho felisa pherekano indastering e nyane lipakeng tsa likotoana tse nang le li-tungsten carbide compacts, le diamond Compax.
Bohareng ba lilemo tsa bo-90, batho ba ile ba qala ho sebelisa theknoloji ea chamfering haholo ho PDC ho itšeha meno, theknoloji ea multichamfer e ile ea amoheloa ka mokhoa oa patent ka 1995. Haeba theknoloji ea chamfering e sebelisoa ka nepo, ho hanyetsa ho robeha ha PDC ho itšeha meno. e ka eketsoa ka 100%.
Lilemong tsa bo-1980, bobeli ba GE Company (USA) le Sumitomo Company (Japan) ba ile ba ithuta ho tlosoa ha cobalt mosebetsing oa meno a PDC ho ntlafatsa ts'ebetso ea meno.Empa ha baa ka ba finyella katleho ea khoebo.Theknoloji hamorao e ile ea ntlafatsoa hape 'me ea fuoa tokelo ea molao ke Hycalog (USA).Ho ile ha pakoa hore haeba lisebelisoa tsa tšepe li ka tlosoa lekhalong la lijo-thollo, botsitso ba mocheso oa meno a PDC bo tla ntlafatsoa haholo e le hore sekoti se ka phunya hantle ka mekhoa e thata le e thata haholoanyane.Theknoloji ena ea ho tlosa cobalt e ntlafatsa ho hanyetsa ha meno a PDC mekhoeng ea majoe a thata a abrasive haholo le ho atolosa le ho feta mefuta e mengata ea ts'ebeliso ea likotoana tsa PDC.
Ho qala ka 2000, ts'ebeliso ea likotoana tsa PDC e eketsehile ka potlako.Meetso e neng e sa khone ho chekoa ka likotoana tsa PDC butle-butle e se e khona ho chekoa ka moruo le ka ts'epahalo ka li-drill tsa PDC.
Ho tloha ka 2004, indastering ea li-drill bits, chelete ea 'maraka ea PDC drill bits e nkile karolo ea 50%,' me sebaka sa ho cheka se fihlile hoo e ka bang 60%.Khōlo ena e ntse e tsoela pele ho fihlela kajeno.Hoo e ka bang tsohle tse sebelisoang hona joale lits'ebetsong tsa ho cheka Amerika Leboea ke likotoana tsa PDC.
Ka bokhuts'oane, ho tloha ha e ne e thakholoa ka bo-70s 'me e bile le kholo ea eona ea pele butle, li-cutters tsa PDC butle-butle li khothalelitse nts'etsopele e tsoelang pele ea indasteri ea li-drill bakeng sa lipatlisiso le ho cheka oli le khase.Tšusumetso ea theknoloji ea PDC indastering ea ho cheka e kholo.
Batho ba bacha 'marakeng oa meno a boleng bo phahameng ba PDC, hammoho le lik'hamphani tse kholo tsa ho cheka, ba tsoela pele ho etella pele phetoho le mekhoa e mecha ea lisebelisoa tse ncha le mekhoa ea tlhahiso e le hore ts'ebetso ea PDC ea ho itšeha meno le likotoana tsa ho phunya PDC li ka ntlafatsoa ka ho tsoelang pele.
Nako ea poso: Apr-07-2023