pū kaiwhakatū me ngā pū kaiwhakaawe
Nā ngā pūtē DTH me ngā rautaki kōwhai e whakawhiti i ngā whakamahinga matua mō ngā mahi whakanui, e whakapakari ana i te hanganga tūao hoki i runga i te haere pai. Kua hanga ēnei rautaki hei whakamahi i ngā taumata whakanui down-the-hole, whakamahia ai ngā ratonga whakanui nui me te tūponotanga pai ki waho atu i ngā āhuatanga whenua rerekē. E mahi ana te pūtē DTH ki runga i te hāwhe ika, tuku atu i te pūkorero huinga ki te tahuhu kō whatitoka, nō reira ka tahuri ngā rautaki kōwhai, e āhatia ana e ngā putiputi tungsten carbide i whakaritea i ngā raupapa pai, hei whakakore raweke me te whakakore kōwhatitoka. Ko te raraunga ka whai painga i ngā mahi whakanui pūnaha me ngā mahi whakanui tuatahi, he pai tēnei mō ngā whakamahinga pērā i te whakanui pūnui, te whakamahi whenua, te hanga, me ngā kaupapa geothermal. Kei roto i te hanga o tēnei tekoteko, ko ngā rauemi tūmatanui hou me ngā toharite haere pai, hei whakaū i te kawe take whiu tūmomo nui me te wehewehe i ngā pūtake haere i te mahi. Nā ngā hanga hou a ngā pūtē DTH me ngā rautaki kōwhai ka whakapai i te kaiwhakamahi hāwhe, ka heke i ngā huringa tirotiro, ka whakapai hoki i te haere whakanui katoa. Ki runga tonu i ngā kaupapa whakanui nui, kei roto i ngā rautaki nei, ko ngā momo whakamahana huringa me te mātauranga matū hou e whai ana ki te whakapai i te wā kawe noa, ahakoa i ngā āhuatanga whakanui nui rawa. He iti noa iho ngā rautaki nei i ngā momo me ngā whakatakotoranga, kia whakaae ai ki ngā huatau rāngai rerekē me ngā āhuatanga whenua, whakawhiti i te whakapai ki runga i ngā whakamahinga rerekē, ā, ka mau tonu i ngā paerewa haere.
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