Material: | Tungsten Carbide |
---|---|
Usage: | Well Drilling, Oil Well Drilling |
Color: | Blue, Gold,Red |
Formation: | Medium Soft with Low Compressive Strength and Hard |
Custome Made: | Yes |
Transport Package: | Wooden Case |
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TCI Bit Size | API Pin | |
in | mm | in |
3 1/2 | 88.9 | 2 3/8 |
4 5/8 | 117.5 | 2 7/8 |
4 3/4 | 120.6 | 2 7/8 |
5 1/2 | 139.7 | 3 1/2 |
5 7/8 | 149.2 | 3 1/2 |
6 | 152.4 | 3 1/2 |
6 1/4 | 158.8 | 3 1/2 |
6 1/2 | 165.1 | 3 1/2 |
6 3/4 | 171.4 | 3 1/2 |
7 1/2 | 190.5 | 4 1/2 |
7 7/8 | 200.0 | 4 1/2 |
8 1/4 | 209.6 | 4 1/2 |
8 3/8 | 212.7 | 4 1/2 |
8 1/2 | 215.9 | 4 1/2 |
8 3/4 | 222.2 | 4 1/2 |
9 1/2 | 241.3 | 6 5/8 |
9 5/8 | 244.5 | 6 5/8 |
9 7/8 | 250.8 | 6 5/8 |
10 5/8 | 269.9 | 6 5/8 |
11 | 279.4 | 6 5/8 |
11 5/8 | 295.3 | 6 5/8 |
12 1/8 | 308.0 | 6 5/8 |
12 1/4 | 311.1 | 6 5/8 |
12 15/32 | 320.0 | 6 5/8 |
13 1/8 | 333.4 | 6 5/8 |
13 5/8 | 342.9 | 6 5/8 |
13 3/4 | 349.2 | 6 5/8 |
14 5/8 | 355.6 | 6 5/8 |
14 3/4 | 374.6 | 7 5/8 |
15 1/2 | 393.7 | 7 5/8 |
16 | 406.4 | 7 5/8 |
17 1/2 | 444.5 | 7 5/8 |
20 | 508.0 | 7 5/8 |
26 | 660.4 | 7 5/8 |
IADC | Normal WOB | Rotary Speed | Application formation |
kn/mm(bit dia.) | (rpm) | ||
417 | 0.35-0.90 | 140-70 | Very soft with low commpressive strengh and high drillability,such as shale,clay,and conglomerate,etc |
437 | 0.35-0.95 | 140-60 | Very soft with low commpressive strengh and high drillability,such as shale,clay,sandstone and conglomerate,etc |
517 | 0.35-1.05 | 120-50 | Soft with low commpressive strengh and high drillability,such as shale,clay,sandstone and limestone,etc |
537 | 110-40 | Medium soft with low compressive strength and harder abrasive stringers,such as hard shale,hard gypsolyte,soft limesone,sandstone and dolomite withstringers,etc | |
617 | 80-40 | Medium hard with high compressive strength and thick&hard stringers,such as hard shaie,limestone,sandstone and dolomite,etc. | |
637 | 0.70-1.20 | 70-40 | Medium hard with high compressive strength and high abrasiveness,such as limestone,dolomite,sandstone and chert,etc. |
Note:The upper limits of WOB and RPMrecommended in above table should not be used simultaneously. |
IADC | Normal WOB | Rotary Speed | Application formation |
Ib/in(bit dia.) | (rpm) | ||
412 | 1000~2000 | 120~60 | Designed for very soft formations with low compressive strengths and highdrillability such as shale,soft limestone,sandstone,conglomerate,soft dolomiteand coal ore. |
415 | |||
432 | 1000~4000 | 100~60 | |
435 | |||
532 | 2000~5000 | Designed for soft formations with lowcompressive strengthssunch as shale,softlimestone,dolomite with interlayersand coal ore. | |
535 | |||
612 | 3000~5000 | Designed for medium hard and abrasive formations with high compressivestrengths sunch as limestone,sandstone,dolomiteand chert. | |
615 | |||
632 | 3000~6000 | ||
635 | |||
732 | 4000~7000 | 90~60 | Designed for hard and abrasive formationswith high compressive strengths sunch as granite,limestone,sandy sandstone,dolomiteand chert. |
735 | |||
832 | 5000~8000 | Designed for extremely hard andabrasiveformationswith compressivestrengths such as magnetite quartzite,quartzite,granite. | |
835 | |||
Note:The upper limitsof WOB and RPM recommended in above table should not be used simultaneously. |
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