Hurihia ki runga i te Rig Drilling hei whakawhiti i te wai drill ki roto i te aho drill
Ko te keri hurihuri te taputapu matua mō te hurihanga hurihuri o te mahi raro whenua. Koinei te hononga i waenga i te pūnaha hiki me te taputapu keri, me te wāhanga hononga i waenga i te pūnaha hurihanga me te pūnaha hurihuri. Ko te wāhanga o runga o te keri hurihuri e iri ana ki te poraka matau mā te hononga ararewa, ā, e hono ana ki te ngongo keri mā te ngongo kaki kūtai. Ko te wāhanga o raro e hono ana ki te paipa keri me te taputapu keri raro poka, ā, ka taea te whakahaere i te katoa ki runga, ki raro hoki mā te poraka haere.
Tuatahi, ko ngā whakaritenga mō te keri i ngā taputapu mō ngā mahi o raro whenua
1. Te mahi a ngā pūwero keri
(1) Ngā taputapu keri whakatārewatanga hei tu atu i te taumaha katoa o ngā taputapu keri raro-poka.
(2) Kia tika te hurihuri o te wiri o raro, ā, kia kore ai te hononga o runga o te kelly e piko.
(3) Kua honoa ki te pūwero keri hei pupuhi i te wai pēhanga teitei ki roto i te paipa keri hurihuri hei whakatutuki i te keri hurihuri.
Ka kitea ka taea e te taputapu keri te whakatutuki i ngā mahi e toru o te hiki, te hurihanga me te tohanga, ā, he wāhanga nui o te hurihanga.
2. Ngā whakaritenga mō te keri i ngā taputapu i roto i ngā mahi poka raro
(1) Me nui te kaha o ngā wāhanga matua o te pūwero keri, pērā i te mowhiti hiki, te paipa pokapū, te kawenga, me ētahi atu.
(2) Me whai āhuatanga pēhanga teitei, ātete kakahu me te ātete waikura te pūnaha hiri huihuinga horoi, ā, me watea hoki te whakakapi i ngā wāhanga pakaru.
(3) Me hiri pai te pūnaha hiri hinu pēhanga-iti, me ātete ki te waikura, ā, me roa te ora mahi.
(4) Me maeneene, me koki hoki te āhua me te hanganga o te taputapu keri, ā, me watea te koki o te mowhiti hiki mō ngā matau whakairi.
Ngā Āhuatanga Hangarau:
• Me te rino whakarewa koranu takirua whiriwhiri.
• He pouaka ngā hanganga whakauru o te paipa horoi me te taputapu tākai, ā, he ngāwari ki te whakakapi.
• Ka honoa te kaki kūtai me te ngongo hurihuri mā ngā hononga, mā te API 4LP rānei.
Ngā Tawhā Hangarau:
| Tauira | SL135 | SL170 | SL225 | SL450 | SL675 | |
|
Te kaha kawenga pūmau mōrahi, kN(kips) | 1350(303.5) | 1700(382.2) | 2250(505.8) | 4500(1011.6) | 6750(1517.5) | |
| Tere mōrahi, r/min | 300 | 300 | 300 | 300 | 300 | |
| Te pēhanga mahi mōrahi, MPa(ksi) | 35(5) | 35(5) | 35(5) | 35(5) | 52(8) | |
| Te whānui o te kakau, mm(inihi) | 64(2.5) | 64(2.5) | 75(3.0) | 75(3.0) | 102(4.0) | |
| Miro hononga | Hei pūtake | 4 1/2" REG, LH | 4 1/2" REG, LH | 6 5/8" REG, LH | 7 5/8" REG, LH | 8 5/8" REG, LH |
| Ki a Kelly | 6 5/8" REG, LH | 6 5/8" REG, LH | 6 5/8" REG, LH | 6 5/8" REG, LH | 6 5/8" REG, LH | |
| Te rahinga whānui, mm(inihi) (R×W×H) | 2505×758×840 (98.6×29.8×33.1) | 2786×706×791 (109.7×27.8×31.1) | 2880×1010×1110 (113.4×39.8×43.7) | 3035×1096×1110 (119.5×43.1×43.7) | 3775×1406×1240 (148.6×55.4×48.8) | |
| Taumaha, kg(lbs) | 1341(2956) | 1834(4043) | 2815(6206) | 3060(6746) | 6880(15168) | |
| Kia mōhio: He takahurihuri (rua ngā mahi) kei ngā takahurihuri kua whakahuatia ake nei, kāore he takahurihuri. | ||||||
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