Ixesha elidlulileyo nelikhoyo kwi-Cone bit

Ukusukela oko kwavela intwana yokuqala yecone ngo-1909, intwana yecone ibiyeyona isetyenziswa kakhulu kwihlabathi. Isuntswana le-Tricone yeyona nto ixhaphakileyo yokomba esetyenziswa kwimisebenzi yokomba ejikelezayo. Olu hlobo lwe-drill lunoyilo lwamazinyo ahlukeneyo kunye neentlobo ze-junction ethwele, ngoko ke inokulungelelaniswa kwiintlobo ezahlukeneyo zokubunjwa. Kwi-drilling operation, isakhiwo esifanelekileyo se-cone bit sinokukhethwa ngokuchanekileyo ngokweepropati ze-drilled formation, kunye nesantya esonelisayo sokugaya kunye ne-bit footage inokufumaneka.

Umgaqo wokusebenza wesuntswana lecone

Xa i-cone bit isebenza ezantsi komngxuma, isuntswana lonke lijikeleza kwi-bit axis, ebizwa ngokuba yi-revolution, kwaye iicones ezintathu ziqengqeleka ezantsi komngxuma ngokweaxis yazo, ebizwa ngokuba yi-rotation. Ubunzima bentwana obugalelwa ilitye ngamazinyo bubangela ukuba ilitye liqhekezeke. Kwinkqubo yokuqengqeleka, i-cone idibanisa ngokuthe kratya ezantsi komngxuma ngamazinyo mnye kunye namazinyo amabini, kwaye indawo yombindi we-cone iphezulu kwaye iphantsi, nto leyo eyenza ukuba i-bit ivelise i-longitudinal vibration. Le vibration longitudinal ibangela ukuba umtya we-drill ucinezele kwaye wolule ngokuqhubekayo, kwaye umtya we-drill osezantsi uguqula le cyclic elastic deformation ibe yimpembelelo yempembelelo ekubunjweni ngamazinyo ukuphula ilitye. Le mpembelelo kunye nesenzo sokutyumza yeyona ndlela ingundoqo yokutyunyuzwa kwamatye nge-cone bit.

Ngaphandle kokuphembelela nokutyumza ilitye ezantsi komngxuma, intwana yecone ikwavelisa isiphumo sokucheba elityeni ezantsi komngxuma.

Ukuhlelwa kunye nokukhethwa kwebit yecone

Kukho abavelisi abaninzi bee-cone bits, ezinikezela ngeentlobo ezahlukeneyo kunye nezakhiwo zeebhithi. Ukuze kube lula ukukhetha kunye nokusetyenziswa kwe-cone bits, i-International Institute of Drilling Contractors (IADC) iphuhlise umgangatho odibeneyo wokuhlelwa kunye nendlela yokwenza amanani kwiibhithi zekhowuni kwihlabathi jikelele.