Li-Milled tooth Tricone Rock Drill Bits:
The milled tooth (steel tooth) ho cheka likotoana tsa trione bakeng sa sebopeho sa majoe a bonolo ho isa bohareng.
Sebopeho se bonolo sa milled tooth tricone bits se sebelisetsoa ho cheka matla a tlaase a khatello, sebopeho se bonolo.Ho sebelisoa bolelele ba meno a malelele ho li-cones tse phahameng ho fana ka litefiso tse kholo ka ho fetisisa tse ka khonehang.Ho roala ho hanyetsa ka thata ho sebelisoa ho laola ho roala ha meno.Mefuteng e bonolo ka ho fetisisa, sefahleho sena se thata se koahela ka ho feletseng menoana.
The medium formation milled tooth tricone bits e sebelisetsoa ho cheka matla a phahameng a khatello, sebopeho sa majoe a mahareng.Ho sebelisoa meno a ho thunya a nang le bolelele bo fokotsehileng ba crest letotong lena la meralo e nyane.Sefahleho se thata se tšoarellang se sebelisoa ho fokotsa ho roala ha meno.
Lethathamo la lihlopha tsa sebopeho sa boima le khetho ea likotoana
| Karolo ea li-roller cone | IADC code of diamond bit | Tlhaloso ea sebopeho | Mofuta oa lefika | Matla a hatellang (Mpa) | ROP(m/h) |
| IADC khoutu | |||||
| 111/124 | M/S112~M/S223 | E bonolo haholo: sebopeho se bonolo se khomarelang se nang le matla a tlase a khatello. | Letsopa Siltstone lejoe la lehlabathe | <25 | >20 |
| 116/137 | M/S222~M/S323 | Bonolo: sebopeho se bonolo se nang le matla a tlase a khatello le ho phunya ho phahameng. | Lefika la letsopa Marl Lignite lejoe la lehlabathe | 25-50 | 10-20 |
| 417/527 | M/S323~M/S433 | Bonolo bo mahareng: sebopeho se bonolo ho isa ho se mahareng se nang le matla a tlase a khatello le steak. | Lefika la letsopa Marl Lignite Lejoe la lehlabathe Siltstone Anhydrite Tuff | 50-75 | 5-15 |
| 517/537 | M322~M443 | Bohareng: sebopeho se mahareng ho isa ho se thata se nang le matla a phahameng a khatello le leqhubu le lesesaane la abrasive. | Lejoe la seretse Lefika le lefifi shale | 75-100 | 2~6 |
| 537/617 | M422~M444 | Bohareng bo thata: sebopeho se thata le se teteaneng se nang le matla a phahameng a khatello le abrasiveness e mahareng. | Lefika le lefifi Shale e thata Anhydrite Lejoe la lehlabathe Dolomite | 100 ~ 200 | 1.5~3 |
Size ea Leino la tšepe ea Tricone ea boholo
| Boholo ba kamehla | Kamehla 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 BTS E HLAHISA MOSEBETSI
| Bonyane Bongata ba Order | N/A |
| Theko | |
| Lintlha tsa Sephutheloana | Sephutheloana sa Tlhahiso e Tloaelehileng ea Export |
| Nako ea thomello | 7 matsatsi |
| Melao ea Tefo | T/T |
| Matla a Phepelo | E ipapisitse le Taelo e Felletseng |
