Ihe ndị dị na diamond polycrystalline, maka ojiji na polycrystalline diamond compact (PDC), bụ otu n'ime ọganihu ihe kachasị mkpa maka ngwá ọrụ ịkụ ala mmanụ n'afọ ndị na-adịbeghị anya.Iberibe isi etinyere na-atụgharị dị ka otu ibe na enweghị akụkụ na-akpụ akpụ iche.Mgbe ibe n'isi na-eji ndị na-egbutu PDC, a na-akpọkarị ha PDC ibe n'ibe.Ihe ewu ewu nke bits na-eji ndị na-egbutu PDC etoola nke ọma, na ọ fọrọ nke nta ka ọ bụrụ ihe a na-ahụkarị dị ka ibe ntụtụ-cone n'ọtụtụ ngwa ịkụ ala.
Nkọwapụta PDC Drill Bits ahụ Matrix:
Nha (inch) | Nha (mm) | Std.eri API | Odika ibu (kgs) |
2-3/8 | 60 | Na-abụghị std. | 1.3 |
2-1/2 | 63.5 | Na-abụghị std. | 1.5 |
3 | 76 | Na-abụghị std. | 2 |
3-1/2 | 89 | Na-abụghị std. | 3.5 |
3-7/8 | 98.4 | 2-3/8" | 5 |
4 | 102 | 2-3/8" | 5.5 |
4-1/4 | 108 | 2-3/8" | 6.5 |
4-5/8 | 117.5 | 2-7/8" | 8 |
5-1/4 | 133 | 2-7/8" | 11 |
5-5/8 | 142.9 | 3-1/2" | 13 |
5-7/8 | 149.2 | 3-1/2" | 14 |
6 | 152 | 3-1/2" | 17 |
6-1/8 | 155.6 | 3-1/2" | 18 |
6-1/4 | 159.3 | 3-1/2" | 20 |
6-1/2 | 165 | 3-1/2" | 22 |
7-1/2 | 190.5 | 4-1/2" | 31 |
7-5/8 | 193.7 | 4-1/2" | 32 |
7-7/8 | 200 | 4-1/2" | 35 |
8-1/2 | 215.9 | 4-1/2" | 42 |
8-5/8 | 219 | 4-1/2" | 44 |
8-3/4 | 222.3 | 4-1/2" | 45 |
9-1/2 | 241.3 | 6-5/8" | 60 |
9-5/8 | 244.5 | 6-5/8" | 65 |
9-3/4 | 247.7 | 6-5/8" | 70 |
9-7/8 | 250.8 | 6-5/8" | 75 |
10-5/8 | 270 | 6-5/8" | 82 |
11-5/8 | 295 | 6-5/8" | 90 |
12-1/4 | 311.2 | 6-5/8" | 98 |
13-5/8 | 346.1 | 6-5/8" | 134 |
15-1/2 | 394 | 6-5/8" | 190 |
16 | 406.4 | 6-5/8" | 200 |
17-1/2 | 444.5 | 7-5/8" | 251 |
20 | 508 | 7-5/8" | 300 |
24 | 610 | 7-5/8" | 600 |
26 | 660.4 | 7-5/8" | 700
|
Ọnụ ego kacha nta | N/A |
Ọnụ ahịa | |
Nkọwa nkwakọ ngwaahịa | Ngwungwu mbupu ọkọlọtọ |
Oge Mbuga ozi | 7 ụbọchị |
Usoro ịkwụ ụgwọ | T/T |
Ikike inye | Dabere na usoro zuru ezu |