Ukwelashwa kwe-cryogenic ye-PDC cutter

I-PDC cutter iyinhlanganisela yezinto ezinezici ezinhle kakhulu ezitholakala ngokufaka impushana yedayimane nge-substrate ye-carbide enosimende kusetshenziswa izinga lokushisa eliphezulu kanye nobuchwepheshe be-high pressure (HTHP).

Isisiki se-PDC sinokusebenza okuhle kwe-thermal, ubulukhuni obuphezulu kakhulu, nokumelana nokugqoka, kanye namandla aphezulu, ukuqina komthelela omkhulu, kanye nokushisela kalula.

Isendlalelo sedayimane se-polycrystalline sisekelwa i-substrate ye-carbide enosimende, engakwazi ukumunca umthelela omkhulu olayishwayo futhi igweme umonakalo omkhulu phakathi nomsebenzi. Ngakho-ke, i-PDC yayisetshenziswa kabanzi ukwenza amathuluzi okusika, igeological kanye ne-oyela kanye nezingcezu zokumba imithombo yegesi, namanye amathuluzi angagugi.

Emkhakheni wokumba uwoyela negesi, ngaphezu kwama-90% wesamba sokumba sevidiyo siqedwa yizicucu ze-PDC. Izingcezu ze-PDC zivame ukusetshenziselwa ukumba amatshe aqinile athambile ukuya kwamaphakathi. Uma kukhulunywa ngokubhoboza okujulile, kusenezinkinga zempilo emfushane kanye ne-ROP ephansi.

Ekubunjweni okujulile okuyinkimbinkimbi, izimo zokusebenza ze-PDC drill bit zinzima kakhulu. Izinhlobo eziyinhloko zokwehluleka kocezu oluyinhlanganisela zihlanganisa ukuphuka okukhulu okufana namazinyo aphukile kanye nokuqhekeka okubangelwa umthelela obangelwa ukubhoboza okuncane kokuthola umthwalo omkhulu womthelela, kanye nezinga lokushisa eliphansi lembobo elidala elidala izingcezu eziyinhlanganisela. Ukuncipha kokumelana nokugqokwa kweshidi kubangela ukuguga okushisayo kweshidi eliyinhlanganisela ye-PDC. Ukwehluleka okukhulunywe ngenhla kweshidi eliyinhlanganisela ye-PDC kuzothinta kakhulu impilo yayo yesevisi nokusebenza kahle kokumba.

Iyini I-Cryogenic Treatment?

Ukwelashwa kwe-Cryogenic kuyisandiso sokushisa okuvamile. Isebenzisa i-nitrogen ewuketshezi nezinye iziqandisi njengemidiya yokupholisa ukuze ipholise izinto ezingeni lokushisa elingaphansi kakhulu kwegumbi (-100~-196°C) ukuze kuthuthukiswe ukusebenza kwazo.

Ucwaningo oluningi olukhona lubonise ukuthi ukwelashwa kwe-cryogenic kungathuthukisa kakhulu izakhiwo zemishini yensimbi, i-aluminium alloys, nezinye izinto. Ngemuva kokwelashwa kwe-cryogenic, into yokuqinisa imvula ivela kulezi zinto. Ukwelashwa kwe-cryogenic kungathuthukisa amandla aguquguqukayo, ukumelana nokugqoka, nokusebenza okusika kwamathuluzi e-carbide enosimende, okuhambisana nokuthuthukiswa okuphumelelayo kwempilo. Ucwaningo olufanele luphinde lwabonisa ukuthi ukwelashwa kwe-cryogenic kungathuthukisa amandla okucindezela okumile ezinhlayiya zedayimane, isizathu esiyinhloko sokwanda kwamandla ukuguqulwa kwesimo sokucindezeleka okusala.

Kodwa, singakwazi yini ukuthuthukisa ukusebenza komsiki we-PDC ngokwelashwa kwe-cryogenic? Njengamanje zimbalwa izifundo ezifanele.

Indlela yokwelashwa kwe-cryogenic

Indlela yokwelapha ye-cryogenic yabasiki be-PDC, imisebenzi yile:

(1) Beka abasiki be-PDC endaweni yokushisa yasekamelweni esithandweni somlilo se-cryogenic;

(2) Vula isithando somlilo se-cryogenic, udlule ku-nitrogen ewuketshezi, futhi usebenzise ukulawula izinga lokushisa ukuze unciphise izinga lokushisa esithandweni sokushisa i-cryogenic libe -30℃ ngenani elingu -3℃/min; lapho izinga lokushisa lifinyelela ku--30 ℃, lizobe selincipha libe ngu--1℃/min. Yehlisa ku -120 ℃; ngemva kokuba izinga lokushisa lifinyelele -120℃, nciphisa izinga lokushisa libe -196℃ ngesivinini esingu--0.1℃/min;

(3) Yigcine amahora angu-24 ezingeni lokushisa elingu-196°C;

(4) Bese ukhuphula izinga lokushisa libe -120°C ngesilinganiso esingu-0.1°C/min, bese wehlisela ku--30°C ngesilinganiso esingu-1°C/min, futhi ekugcineni ulehlise libe ekamelweni lokushisa ngesilinganiso. kwe-3°C/min;

(5) Phinda ukuhlinzwa okungenhla kabili ukuze uqedele ukwelashwa kwe-cryogenic yabasiki be-PDC.

Isisiki se-PDC esiphathwe nge-cryogenically kanye nesisiki se-PDC esingalashiwe sihlolwe isilinganiso sokugqokwa kwesondo lokugaya. Imiphumela yokuhlolwa ibonise ukuthi izilinganiso zokugqoka zaziyi-3380000 kanye ne-4800000 ngokulandelanayo. Imiphumela yokuhlolwa ibonise ukuthi ngemva kokupholisa okujulile Isilinganiso sokugqoka se-CDC cutter esiphethwe amakhaza siphansi kakhulu kunesisiki se-PDC ngaphandle kokwelashwa kwe-cryogenic.

Ukwengeza, amashidi enhlanganisela ye-PDC aphathwe nge-cryogenically futhi angaphathwanga ashiselwa ku-matrix futhi abholwa ama-200m esigabeni esifanayo semithombo eseduze nemingcele efanayo yokumba. I-ROP yokubhoboza eyimishini ye-drill bit yenyuka ngo-27.8% kusetshenziswa i-PDC ephathwa nge-cryogenically uma kuqhathaniswa naleyo engasebenzisi isisiki se-PDC esilashwe nge-cryogenically.

Ucabangani ngokwelashwa kwe-cryogenic ye-PDC cutter? Siyakwamukela ukusishiyela imibono yakho.

Kwabasiki be-PDC, ungasifinyelela nge-imeyili [email protected].