Maombi
Biti za tricone, ambazo wengine wanaweza pia kuziita biti za koni ya kukunja au koni tatu, zina koni tatu.Kila koni inaweza kuzungushwa kibinafsi wakati kamba ya kuchimba inazunguka mwili wa biti.Koni zina fani za roller zilizowekwa wakati wa kusanyiko.Vipande vya kukata rolling vinaweza kutumika kuchimba miundo yoyote ikiwa kikata sahihi, kuzaa, na pua huchaguliwa.
Vipande vya meno vilivyosagwa
1, Miundo laini (114-117)
Biti hizi zimeundwa ili kuchimba miundo laini zaidi kama vile shali laini, vitanda vyekundu, na udongo, wenye uimara wa juu na viwango vya juu vya kupenya.
2, Miundo laini hadi ya kati(121,124,126,134,136,137)
Biti hizi zimeundwa ili kuchimba miundo kama vile shali, chokaa laini ya wastani, mchanga wa wastani na miundo mingine yenye michirizi mikali ya vipindi.
3, muundo wa kati hadi ngumu (213,214,215,217)
Biti hizi zimeundwa kuchimba miundo kama vile mchanga mgumu, dolomite, na muundo uliovunjika na michirizi migumu ya cherty.
Mwongozo wa Chaguo la Bit Tricone
IADC | WOB(KN/mm) | RPM(r/dak) | MAUMBO YANAYOHUSIKA |
114/116/117 | 0.3~0.75 | 180-60 | Miundo laini sana yenye nguvu ya chini ya kukandamiza na kuchimba visima vya juu, kama vile udongo, mawe ya matope, chaki, nk. |
124/126/127 | 0.3~0.85 | 180-60 | Miundo laini yenye nguvu ya chini ya kubana na kutoboa visima, kama vile matope, jasi, chumvi, chokaa laini n.k. |
134/135/136/137 | 0.3~0.95 | 150-60 | Miundo laini hadi ya kati yenye nguvu ya chini ya kubana na kutoboa visima vya juu, kama vile shale laini ya wastani, jasi gumu, chokaa laini ya wastani, mchanga laini wa wastani, uundaji laini wenye mwingiliano mgumu zaidi, n.k. |
214/215/216/217 | 0.35~0.95 | 150-60 | Miundo ya wastani yenye nguvu ya juu ya kubana, kama vile shale laini ya wastani, jasi gumu , chokaa laini ya wastani, mchanga laini wa wastani, uundaji laini ulio na kiunganishi kigumu zaidi, n.k. |
227 | 0.35~0.95 | 150-50 | Miundo migumu ya wastani na nguvu ya juu ya kubana, kama vile shale abrasive, chokaa, mchanga, dolomite, jasi ngumu, marumaru, nk. |
Kumbuka: Vikomo vya juu vya WOB na RPM katika jedwali lililo hapo juu havifai kutumika kwa wakati mmoja. |
Mwongozo wa Chaguo la Bits ya triconeAina ya meno ya Tricone Bits
Ukubwa wa Bits
Ukubwa kidogo | PIN REG YA API | Torque | Uzito | |
Inchi | mm | Inchi | KN.M | Kg |
3 3/8 | 85.7 | 2 3/8 | 4.1-4.7 | 4.0-6.0 |
3 1/2 | 88.9 | 4.2-6.2 | ||
3 7/8 | 98.4 | 4.8-6.8 | ||
4 1/4 | 108 | 5.0-7.5 | ||
4 1/2 | 114.3 | 5.4-8.0 | ||
4 5/8 | 117.5 | 2 7/8 | 6.1-7.5 | 7.5-8.0 |
4 3/4 | 120.7 | 7.5-8.0 | ||
5 1/8 | 130.2 | 3 1/2 | 9.5-12.2 | 10.3-11.5 |
5 1/4 | 133.4 | 10.7-12.0 | ||
5 5/8 | 142.9 | 12.6-13.5 | ||
5 7/8 | 149.2 | 13.2-13.5 | ||
6 | 152.4 | 13.6-14.5 | ||
6 1/8 | 155.6 | 14.0-15.0 | ||
6 1/4 | 158.8 | 14.4-18.0 | ||
6 1/2 | 165.1 | 14.5-20.0 | ||
6 3/4 | 171.5 | 20.0-22.0 | ||
7 1/2 | 190.5 | 4 1/2 | 16.3-21.7 | 28.0-32.0 |
7 5/8 | 193.7 | 32.3-34.0 | ||
7 7/8 | 200 | 33.2-35.0 | ||
8 3/8 | 212.7 | 38.5-41.5 | ||
8 1/2 | 215.9 | 39.0-42.0 | ||
8 5/8 | 219.1 | 40.5-42.5 | ||
8 3/4 | 222.3 | 40.8-43.0 | ||
9 1/2 | 241.3 | 6 5/8 | 38-43.4 | 61.5-64.0 |
9 5/8 | 244.5 | 61.8-65.0 | ||
9 7/8 | 250.8 | 62.0-67.0 | ||
10 | 254 | 68.0-75.0 | ||
10 1/2 | 266.7 | 72.0-80.0 | ||
10 5/8 | 269.9 | 72.0-80.0 | ||
11 1/2 | 292.1 | 79.0-90.0 | ||
11 5/8 | 295.3 | 79.0-90.0 | ||
12 1/4 | 311.2 | 95.0-102. | ||
12 3/8 | 314.3 | 95.0-102.2 | ||
12 1/2 | 317.5 | 96.0-103.0 | ||
13 1/2 | 342.9 | 105.0-134.0 | ||
13 5/8 | 346.1 | 108.0-137.0 | ||
14 3/4 | 374.7 | 7 5/8 | 46.1-54.2 | 140.0-160.0 |
15 | 381 | 145.0-165.0 | ||
15 1/2 | 393.7 | 160.0-180.0 | ||
16 | 406.4 | 200.0-220.0 | ||
17 1/2 | 444.5 | 260.0-280.0 | ||
26 | 660.4 | 725.0-780.0 |
Mchakato wa Uzalishaji
Kiwango cha Chini cha Agizo | N/A |
Bei | |
Maelezo ya Ufungaji | Kifurushi cha Kawaida cha Usafirishaji wa Nje |
Wakati wa Uwasilishaji | siku 7 |
Masharti ya Malipo | T/T |
Uwezo wa Ugavi | Kulingana na Agizo la Kina |