Hlamba ngaphezulu kwesihlangu
Uyilo lwe-ROP ephezulu xa kusombiwa ubunzulu kunye nobunzima, i-PDC yokomba isoloko iqhelana ukusuka emhlabeni ukuya ezantsi ngokuthe ngqo nangaphantsi okanye kwinto enye, ukugcina ixesha kunye neendleko.
Umahluko kwi-tricone bit, i-PDC drill bit ibaleka nge-WOB esezantsi kodwa i-RPM ePhakamileyo, ke ihlala isebenza ngeemoto ezantsi ukuya kwisantya esijikelezayo.
Ukusebenza kwe-PDC drill bit kuxhomekeke kakhulu kubasiki be-PDC, sinika isisombululo esikhethekileyo kwiimfuno ezithile kulwakhiwo olwahlukeneyo.
Isixhobo sokuloba esincedisayo esisetyenziselwa ukugaya umbhobho wokugrumba ongaqhelekanga, istili, okanye into ewela ezantsi equleni. Isihlangu esimilise okwipere okanye isikhululo sokugaya sisetyenziselwa ukulungisa istili esicaba okanye ukubhola. Intonga. Izicathulo zokuguba zingasetyenziselwa ukuthambisa ukwakheka kwenxalenye yokombiwa komtya wokugrumba kwemisebenzi yokuhlangula.
Izihlangu zedayimane eziveliswa zizihlangu zentsimbi yedayimane zicocekile kwaye zifuna i-torque encinci yokuhlamba.
Ngenxa yokuba udoti incinci kakhulu, kufuneka isantya sokubuyisa esisezantsi kuphela ukucoca i-wellbore.
Inobomi obude benkonzo kwaye inokunciphisa inani lohambo.
Isuntswana sokutsala sinendawo esembindini, ubuncinci ezintathu, kodwa ubuninzi kangangesibhozo, imiphezulu yokusika engunxantathu. Imiphetho yokusika yayo yonke okanye ubuncinci isiqingatha senani lilonke lamazinyo esuntswana ajongane nesiphelo sangaphambi kwebhit. Nayiphi na eminye imiphetho yokusika ijongane nomtya wokugrumba, ukuze isetyenziselwe ukusetyenziswa xa usiya nakweliphi icala.
Yenzelwe ukusetyenziswa kwimixube ethambileyo enjengentlabathi, udongwe okanye ezinye iintlobo zelitye elithambileyo. Kwaye ukutsala iibits ezenziwe ngamazinyo e-tungsten carbide kunokuphucula ukusebenza ngokwenziwa kwamatye alukhuni.
