Milled tooth Tricone Rock Drill Bits:
Kubowola kwa dzino lophwanyidwa (chitsulo) kumapanga ma tricone bits kuti apange miyala yofewa kapena yapakati.
Mapangidwe ofewa a milled tricone bits amagwiritsidwa ntchito kubowola mphamvu zochepa zopondereza, mapangidwe ofewa.Mano otalikirapo amatalika amagwiritsidwa ntchito pama cones okwera kwambiri kuti apereke mitengo yayikulu kwambiri yolowera.Kuvala kukana mwamphamvu kuyang'ana kumagwiritsidwa ntchito kuwongolera kuwonongeka kwa mano.Pa mitundu yofewa kwambiri, choyang'ana cholimbacho chimakwiriratu mano.
The medium formation milled tooth tricone bits amagwiritsidwa ntchito kuboola mphamvu yopondereza kwambiri, kupanga miyala yapakatikati.Mano a kuwombera omwe ali ndi kutalika kocheperako amagwiritsidwa ntchito pamapangidwe awa.Chokhazikika choyang'ana cholimba chimagwiritsidwa ntchito kuti muchepetse kuwonongeka kwa mano.
Table of classification of hardness and bit select
| Mtundu wa cone | IADC kodi diamondi bit | Kufotokozera za mapangidwe | Mtundu wa Rock | Compressive mphamvu (Mpa) | ROP(m/h) |
| IADC kodi | |||||
| 111/124 | M/S112~M/S223 | Zofewa kwambiri: zomata zofewa zokhala ndi mphamvu zochepa. | Dongo Siltstone mwala wa mchenga | <25 | >20 |
| 116/137 | M/S222~M/S323 | Zofewa: zofewa zokhala ndi mphamvu zochepa zopondereza komanso kubowoleza kwambiri. | Mwala wadongo Marl Lignite mwala wa mchenga | 25-50 | 10-20 |
| 417/527 | M/S323~M/S433 | Zofewa zapakatikati: zofewa mpaka zapakatikati zokhala ndi mphamvu zochepa zopondereza komanso nyama yanyama. | Mwala wadongo Marl Lignite Mwala wa mchenga Siltstone Anhydrite Tuff | 50-75 | 5-15 |
| 517/537 | M322~M443 | Yapakatikati: yapakatikati mpaka yolimba yokhala ndi mphamvu zopondereza kwambiri komanso mikwingwirima yopyapyala. | Mwala wamatope Mwala wakuda shale | 75-100 | 2~6 pa |
| 537/617 | M422~M444 | Zolimba zapakatikati: mawonekedwe olimba komanso owundana okhala ndi mphamvu zopondereza kwambiri komanso abrasiveness yapakatikati. | Mwala wakuda Shale yovuta Anhydrite Mwala wa mchenga Dolomite | 100-200 | 1.5-3 |
Kukula kwa Zitsulo za Zitsulo za Tricone
| Makulidwe Okhazikika | Nthawi zonse IADC | API Reg Pin | Make-up Torque (Nm) |
| 3 7/8"(98.4mm) | 126/216/637 | 2 3/8 | 4100 ~ 4700 |
| 4 5/8"(117.4mm) | 126/216/517/537/637 | 2 7/8 | 6100 ~ 7500 |
| 5 1/4"(133.3mm) | 126/216/517/537/637 | 3 1/2 | 9500 ~ 12200 |
| 5 5/8"(142.8mm) | 126/216/517/537/637 | 3 1/2 | 9500 ~ 12200 |
| 5 7/8"(149.2mm) | 126/216/517/537/637 | 3 1/2 | 9500 ~ 12200 |
| 6"(152.4mm) | 126/127/216/517/537/617/637 | 3 1/2 | 9500 ~ 12200 |
| 6 1/4"(158.7mm) | 126/127/216/517/537/617/637 | 3 1/2 | 9500 ~ 12200 |
| 6 1/2"(165mm) | 126/127/216/517/537/617/637 | 3 1/2 | 9500 ~ 12200 |
| 7 1/2" (190mm) | 126/216/517/537 | 4 1/2 | 16300 ~ 21700 |
| 7 5/8" (193mm) | 126/216/517/537 | 4 1/2 | 16300 ~ 21700 |
| 7 7/8" (200mm) | 126/216/517/537 | 4 1/2 | 16300 ~ 21700 |
| 8 1/2"(215.9mm) | 117/127/217/437/517/537/617/637 | 4 1/2 | 16300 ~ 21700 |
| 9 1/2" (241.3mm) | 117/127/217/437/517/537/617/637 | 6 5/8 | 38000 ~ 43400 |
| 9 7/8"(250.8mm) | 117/127/217/437/517/537/617/637 | 6 5/8 | 38000 ~ 43400 |
| 10 5/8(269.8mm) | 117/127/137/217/517/537/617/637 | 6 5/8 | 38000 ~ 43400 |
| 11 5/8(295.3mm) | 117/127/137/217/517/537/617/637 | 6 5/8 | 38000 ~ 43400 |
| 12 1/4"(311.1mm) | 114/127/217/437/517/537/617/637 | 6 5/8 | 38000 ~ 43400 |
| 13 5/8"(346.0mm) | 127/217/517/537/617/637 | 6 5/8 | 38000 ~ 43400 |
| 14 3/4"(374.6mm) | 127/217/517/537/617/637 | 7 5/8 | 46100 ~ 54200 |
| 17 1/2"(444.5mm) | 114/115/125/215/515/535/615/635 | 7 5/8 | 46100 ~ 54200 |
| 26"(660.4mm) | 114/115/125/215/515/535/615 | 7 5/8 | 46100 ~ 54200 |
TRICONE BITS PRODUC PROCESS
| Kuchuluka kwa Maoda Ochepa | N / A |
| Mtengo | |
| Tsatanetsatane Pakuyika | Phukusi la Standard Export Delivery |
| Nthawi yoperekera | 7 masiku |
| Malipiro Terms | T/T |
| Kupereka Mphamvu | Kutengera Detailed Order |
