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Polycrystalline Diamond Compacts (PDC) Bit, which was one of the three new technologies of well drilling in 1980s, utilizes stable polycrystalline diamond cutters to drill. As it is a high integrated type of bits, there is no moving parts on the bit body. Though its structure is relatively simple, it performs well for its high strength, high abrasion resistance and impact resistance. Field application proves that PDC bit has the merits of high speed, high footage, long life, stable working, less accidents and high quality shaft when drilling in soft to medium hard formations. PDC bit not only has a long working life, but can be recycled as well. There’s little difference in drilling performance between the new bits and factory repair ones, which can greatly save the drilling cost. |
|
Bit Size (Inches) |
Bit Size (Inches) |
Rotation Speed(r/min) |
Weight On Bit(KN) |
Specific HydraulicHorsepower (HIS) |
Makeup torque(KN·M) |
|
8 1/8 |
25-38 |
60-250 |
30-100 |
2-7 |
24-26.5 |
|
8 3/8 |
25-38 |
60-250 |
30-100 |
2-7 |
24-26.5 |
|
8 1/2 |
25-38 |
60-250 |
30-100 |
2-7 |
24-26.5 |
|
8 3/4 |
25-38 |
60-250 |
30-100 |
2-7 |
24-26.5 |
|
9 1/2 |
25-38 |
60-250 |
30-100 |
2-7 |
40-45 |
|
12 1/4 |
44-66 |
60-250 |
30-100 |
2-7 |
50-60 |
|
Type |
Type |
Std.API pin Shank Size(inches) |
Approximate weight of bits (Kg) |
|
|
Inches |
mm |
|||
|
8 1/8M1953GZFA |
8 1/8 |
206.4 |
4 1/2REG |
63 |
|
8 3/8M1953GLFA |
8 3/8 |
212.7 |
4 1/2REG |
67 |
|
8 1/2M1234AL |
8 1/2 |
215.9 |
4 1/2REG |
70 |
|
8 1/2M3235AL |
8 1/2 |
215.9 |
4 1/2REG |
70 |
|
8 1/2M2235ALF |
8 1/2 |
215.9 |
4 1/2REG |
70 |
|
8 1/2M3235BLF |
8 1/2 |
215.9 |
4 1/2REG |
70 |
|
8 1/2M2235L |
8 1/2 |
215.9 |
4 1/2REG |
70 |
|
8 1/2M3236AL |
8 1/2 |
215.9 |
4 1/2REG |
70 |
|
8 3/4M3235AL |
8 3/4 |
222.3 |
4 1/2REG |
72 |
|
8 3/4M2235ALF |
8 3/4 |
222.3 |
4 1/2REG |
72 |
|
9 1/2M3235L |
9 1/2 |
241.3 |
6 5/8REG |
85 |
|
9 1/2M3236L |
9 1/2 |
241.3 |
6 5/8REG |
85 |
|
12 1/4M3235 |
12 1/4 |
311.1 |
6 5/8REG |
105 |
