Mata keri toka API IADC537 5 1/2” (139.7 mm) mō te poka mārō
Whakaahuatanga Hua
Ko ngā moka roera hiri API TCI rarawe i roto i te taonga mai i te wheketere Haina hei whakamahi mā ngā mīhini keri.
Te tikanga whakamātautau tino pai mō ngā tawhā keri:
1. Wirihia mō te 5 meneti me te WOB tika me te RPM taurite kua tohua i te tīmatanga, kātahi ka tuhia te ROP (e whakaaturia ana i te ripanga i raro nei).
2. Whakanuia te WOB kia paku noa, kia mau tonu te RPM kotahi, ka keri i raro i tēnei WOB mō te 5 meneti, ka tuhi anō i te ROP (e whakaaturia ana i te ripanga i raro nei).
3. Whakaitihia te WOB ki te whānuitanga kotahi, ka pēhi i te taahiraa 2.
4. Kimihia te WOB i roto i ngā rōpū tō o te whakamātautau ka taea te whakaputa i te ROP teitei rawa.
5. Hurihia te RPM kia tika i raro i te WOB tino pai, ā, tuhia te ROP (e whakaaturia ana i te ripanga i raro nei).
6. Tīpakohia te RPM i te ROP teitei rawa.
7. Whakatakotoria te tawhā keri ki te huinga pai rawa atu
Whakatakotoranga Hua
| Whakatakotoranga Taketake | |
| Rahi o te Mata Toka | 5 1/2 inihi |
| 140mm | |
| Momo Moka | TCI Tricone Bit |
| Hononga Miro | 3 1/2 API REG PIN |
| Waehere IADC | IADC 537G |
| Momo Peera | Peera Hiri-Hautaka me te Tiakitanga Ine |
| Hiri Whero | Elastomer, Rapa/Metara rānei |
| Te Tiaki Rekereke | Kei te wātea |
| Te Tiaki i te Hiku o te Hāte | Kei te wātea |
| Momo Whakawhitiwhiti | Te Tohanga o te Paru |
| Āhua o te Keri | Keri hurihuri, keri pāmahana teitei, keri hohonu, keri motuka |
| Ngā pūwero | Ngā Pūwero e Toru |
| Ngā Tawhā Whakahaere | |
| WOB (Taumaha i runga i te Momo) | 14,156-31,458 pauna |
| 63-140KN | |
| RPM(r/min) | 50~120 |
| Te hanganga | He hanganga waenga me te kaha pēhi iti, pērā i te kirikiri waenga, te kirikiri ngohengohe, te kōhatu pāpaku waenga ngawari, te kōhatu pāpaku waenga ngawari, te kōhatu onepū waenga ngawari, te hanganga waenga me ngā paparanga mārō me te koi, me ētahi atu. |
He tohunga a Far Eastern ki ngā mata wiri, pērā i ngā mata tricone, ngā mata PDC, te whakapuare kōhao HDD, me ngā tapahi roera turanga mō ngā momo mahi rerekē.
Hei wheketere mata keri matua i Haina, ko te whakanui ake i te roa o te mahi a te mata keri ko tā mātou whāinga. E ngana tonu ana mātou ki te whakapai ake i ngā mata me te tere uru teitei. Ko tā mātou whāinga he hoko i te kounga teitei me te utu iti rawa.
