Ngā mata keri poka hohonu IADC642 mō te keri toka mārō

Ingoa Waitohu:	Te Rawhiti Tawhiti
Tiwhikete:	API me te ISO
Tauira Tau:	IADC642
Te rahinga iti rawa o te ota:	1 wahi
Ngā Taipitopito mōkihi:	Pouaka Papariki
Wā Tukunga:	5-8 ngā rā mahi
Painga:	Te Mahi Tere Teitei
Te Wā Pūtāhui:	3-5 tau
Taupānga:	Te keri waro, te keri parahi, te rino, te koura.

Tukua mai he īmēra ki a mātou

Taipitopito Hua

Ataata e pā ana

Putumōhio

Whakaahuatanga Hua

Ngā mata keri kohatu tricone hokohoko rahi me te utu whakaheke mai i te wheketere Haina.
Whakaahuatanga Moka:
IADC:642 - Mata porotaka whāriki tuwhera paerewa TCI me te tiaki ine mō ngā hanganga pakeke waenga me te kaha pēhi teitei.
Kaha Whakapūmau:
100-150 MPA
14,500-23,000 PSI
Whakaahuatanga Whenua:
Ngā toka mārō, kua pai te whakapiripiri, pērā i: ngā kōhatu kōhatu mārō, ngā rārangi quarzite, ngā konganuku pyrite, ngā konganuku hematite, ngā konganuku magnetite, ngā konganuku chromium, ngā konganuku phosphorite, me ngā granite.
Ka taea e mātou te tuku atu i ngā mata keri mō te toka tricone i roto i ngā rahi rerekē me te nuinga o ngā waehere IADC.

Whakatakotoranga Hua

He pūnaha matatini te pūnaha whakaputa o te Ahumahi Maina, he maha ngā hononga.
I roto i te keri waro, ko ngā āhuatanga matatini o te whenua me te wai, te matotoru o te oneone o runga, te maha o ngā paparanga onepū, te nui o te rerenga mai o te wai, te whānui o te poka, te poka hohonu, me te maha o ngā mahi kukū, tae atu ki te pāmahana teitei, te pēhanga teitei me te ahotea hanganga teitei i roto i te poka hohonu, ka nui ake te kaha o te uauatanga o raro whenua me te uaua o te maimoatanga.
Me whakatau ētahi raruraru kia rite ki ngā āhuatanga o te keri waro:
1. Te raruraru o te whakanui ake i te tere o te keri.
2. Te ārai me te rongoā i te hinganga o te puna, te whakaiti i te diameter, te hinganga o te keri me ētahi atu aituā.
3. Hangarau ārai-peke.
4. Ātete pāmahana teitei.
5. Ngā raruraru o ngā taputapu tapahi i roto i te hanganga poka hohonu.
He mea tino nui te whiriwhiri i ngā mata keri kohatu tika i mua i te tīmatanga o te kaupapa.
Ka taea e te pakeke o ngā toka te ngohengohe, te pakeke waenga, te pakeke tino pakeke rānei, ka rerekē pea te pakeke o tētahi momo toka, hei tauira, kei roto i te kōhatu papatahi te kōhatu papatahi ngohengohe, te kōhatu papatahi waenga me te kōhatu papatahi pakeke, te kōhatu papatahi waenga me te kōhatu papatahi pakeke, me ētahi atu.
I roto i te kaupapa keri,Te Rawhiti Tawhitihe 15 tau te roa, ā, neke atu i te 30 whenua te wheako ratonga ki te whakarato i ngā mata keri me ngā wairua keri matatau mō ngā tono maha. Kei roto i te tonote keri waro, te keri parahi, te rino,koura kourame ērā atu anō. Ka taea te whakarite i ngā momo mata keri kia rite ki ngā hanganga toka rerekē nā te mea kei a mātou ā mātou akeAPI me te ISOwheketere whaimana o ngā mata keri. Ka taea e mātou te tuku i te otinga a tā mātou miihini ina taea e koe te whakarato i ngā tikanga motuhake, pēnei i tete pakeke o ngā toka, ngā momo taputapu keri, te tere hurihuri, te taumaha o te mata me te taipana.