Ixesha elidlulileyo nelangoku leCone bit

Ukususela ekuveleni kwe-cone bit yokuqala ngo-1909, i-cone bit iyeyona isetyenziswa kakhulu kwihlabathi liphela. I-Tricone bit yeyona drill bit ixhaphakileyo esetyenziswa kwimisebenzi yokubhola ejikelezayo. Olu hlobo lokubhola luneentlobo ezahlukeneyo zamazinyo kunye neentlobo ze-bearing junction, ngoko ke lunokulungiswa kwiintlobo ezahlukeneyo zokwakheka. Kwimisebenzi yokubhola, ulwakhiwo olufanelekileyo lwe-cone bit lunokukhethwa ngokuchanekileyo ngokweempawu zokwakheka okubholiweyo, kwaye isantya sokubhola esanelisayo kunye ne-bit footage zinokufunyanwa.

Umgaqo wokusebenza we-cone bit

Xa i-cone bit isebenza ezantsi komngxuma, yonke i-bit ijikeleza i-bit axis, ebizwa ngokuba yi-revolution, kwaye ii-cones ezintathu ziqengqeleka ezantsi komngxuma ngokwe-axis yazo, ebizwa ngokuba yi-rotation. Ubunzima kwi-bit esetyenziswa kwilitye ngamazinyo bubangela ukuba ilitye liqhekeke (lityumze). Kwinkqubo yokuqengqeleka, i-cone iqhagamshelana ngokutshintshana ezantsi komngxuma ngamazinyo angatshatanga namazinyo aphindwe kabini, kwaye indawo esembindini we-cone iphezulu kwaye iphantsi, nto leyo ebangela ukuba i-bit ivelise i-longitudinal vibration. Olu vibration olude lubangela ukuba i-drill string icinezele kwaye yoluleke rhoqo, kwaye i-drill string esezantsi iguqula olu deformation olujikelezayo lwe-elastic lube ngamandla okuchaphazela ukwakheka ngamazinyo ukuze kuphulwe ilitye. Olu vibration kunye nesenzo sokutyumza yindlela ephambili yokutyumza ilitye nge-cone bit.

Ngaphandle kokubetha nokutyumza ilitye ezantsi komngxuma, iqhekeza lekhoni likwavelisa isiphumo sokucheba kwilitye ezantsi komngxuma.

Uhlu kunye nokukhethwa kwe-cone bit

Kukho abavelisi abaninzi beebhithi zekhowuni, ababonelela ngeentlobo ngeentlobo kunye nolwakhiwo lweebhithi. Ukuze kube lula ukukhetha nokusebenzisa iibhithi zekhowuni, i-International Institute of Drilling Contractors (IADC) iphuhlise umgangatho odibeneyo wokwahlulahlula kunye nendlela yokubala iibhithi zekhowuni kwihlabathi liphela.