Izinhlobo Ezihlukene Zezimayini kanye Nezinsimbi Zokubhoboza Kahle

Izinhlobo Ezihlukene Zezimayini kanye Nezinsimbi Zokubhoboza Kahle

Izingcezu zezimayini nezimbiwa kahle ziyizimbotshana ezibhokayo ezibhoboza futhi zingene ezintweni zamatshe athambile neziqinile. Asetshenziswa ezimayini, ukumba imithombo, ukumba izinkwali, umhubhe, ukwakhiwa, ukuhlola i-geological, kanye nezicelo zokuqhumisa.

Izingcezu zezimayini nezimbiwa zemithombo ngokuvamile zifaka uxhumo olunentambo ukuze kunamathiselwe intambo yokubhoboza kanye nomzimba ongenalutho lapho uketshezi lwe-drill lusakazwa khona. Uketshezi lokubhoboza luyadingeka ukuze kususwe okusikiwe kokubhoboza, ukupholisa kancane, nokusimamisa udonga lwemigodi. Izinhlobo zezingcezu zokumba imithombo zihlanganisa okulandelayo:

Izingcezu ze-Tricone noma i-rolleriqukethe amakhoni amathathu anamazinyo, ngayinye ine-engeli yejenali ephonswe ngase-axis eyinhloko yebhithi. I-engeli yejenali iguqulwa ngokuya ngobulukhuni bokubunjwa. Amazinyo esigaxa ngasinye ahlangana kwelinye ukuze abhoboze inhlabathi eqinile. Ibhithi ishayelwa i-weight-on-bit (WOB) ngenkathi idonswa isenzo esijikelezayo sekhanda le-drill bit.

Izingcezu zesando ezingaphansi komhlaba (DTH).asetshenziswa nezando ze-Down-the-hole zokubhoboza izimbobo ngokusebenzisa uhla olubanzi lwezinhlobo zamadwala. Ngokuhlangana nezando ze-DTH, izingcezu zesando zokubhoboza zidizayinelwe ngedrayivu ehlukanisiwe yokuzungezisa kancane emhlabathini. Amabhithi e-DTH angamabhithi anekhanda eligxilile anokufakwa kwe-conical noma i-chisel bit aqondaniswe ku-matrix mayelana nekhanda lebhithi yokubhoboza. Ukucushwa kwekhanda lebhithi kungase kube yi-convex, concave, noma flat.

Idatha ye-PDCngokufakwa kwe-polycrystalline diamond compact (PDC) kungase kubizwe ngokuthi amabhithi e-PDC. Ngokungafani nezingcezu ze-tricone, izingcezu zokubhoboza ze-PDC ziwucezu olulodwa lwemizimba engenazo izingxenye ezihambayo futhi zenzelwe ukuthi zihlale; yonke ingxenye yakhelwe ngaphakathi endlini ukuze isebenze, ingaguquguquki nokwethembeka. Khetha i-Matrix noma insimbi enamandla amakhulu ukuze ivumelane nezinhlelo zokumba ezihlukene.

Izinkinobhoziyafana namabhithi e-DTH amabhithi ekhanda agxilile anokufakwa kwe-conical noma i-chisel bit aqondaniswe ku-matrix mayelana nekhanda lebhithi yokubhoboza. Ukucushwa kwekhanda lebhithi kungase kube yi-convex, concave, noma flat. I-Button bit iyindilinga eyindilinga elungele iningi le-hard rock, izinhlelo zokusebenza zokumba isando esiphezulu.

Izingcezu ze-cross nama-chisel bitsama-head bits anensimbi eqinile noma izindwani ze-carbide. Ama-chisel bits achazwa ngeblade eyodwa kuyilapho ama-cross bits equkethe ama-blade amabili noma ngaphezulu awela phakathi nendawo  yebhithi. Ama-blades ngokuvamile ancipha abheke endaweni yokusika.