Customized: | Customized |
---|---|
Standard: | API |
Length: | Stub-length |
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Bit Size | Bit Type | |
inch | mm | |
5 7/8 | 149.2 | FG214 |
7 1/2 | 190.5 | FG124C,FG134C,FG244C |
7 7/8 | 200.0 | FG114,FG124,FG134 |
8 3/8 | 212.7 | FG215 |
8 1/2 | 215.9 | FG124W,FG134 |
9 1/2 | 241.3 | FG124G |
9 5/8 | 244.5 | FG114G,FG124G,FG134G |
9 7/8 | 250.8 | FG115GW |
10 5/8 | 269.9 | FG115GW,FG125GW,FG215G, |
11 | 279.4 | FG115GW |
11 5/8 | 295.3 | FG11GW,FG125GW,FG215G |
12 | 304.8 | FG124W |
12 1/4 | 311.2 | FGT115GW,FGT125GW,FG135,FG214,FG244,FG324 |
13 5/8 | 346.1 | FGT115GW,FG124W |
13 3/4 | 349.3 | FGT115W,FGT125W,FGT135W |
14 3/4 | 374.6 | FG115GW,FG125GW,FG135GW |
15 | 381.0 | FG124G,FG244G |
15 1/2 | 393.7 | FG115GW,FG125GW,FG135GW,FG215G |
17 1/2 | 444.5 | FG115GW,FG125GW,FG135GW,FG215G |
19 1/4 | 489.0 | FG115CGW,FG225CG |
20 | 508.0 | FG125CGW,FG215CGW,FG515CG,FGT515CG,FG525CG, FGT525CG,FGT545CG |
22 | 558.8 | FG125C,FG525CG,FG545CG |
24 | 609.6 | FG125C,FG525CG,FG545CG |
26 | 660.4 | FG124C,FG134C,FG525CG,FG545CG |
36 | 914.4 | FG124CW,FG525C |
IADC | WOB(KN/mm) (Bit Dia.) |
RPM (r/min) |
Applicable Formation |
115 | 0.3-0.75 | 200-80 | Very soft formations with low compressive strength and high drill-ability, such as clay, mudstone, chalk, etc. |
125 | 0.3-0.85 | 200-80 | Soft formations with low compressive strength and high drill-ability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc. |
135 | 0.3-0.95 | 180-80 | Soft to medium soft formations with low compressive strength and high drill-ability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder inter-beds, etc. |
215 | 0.35-0.95 | 180-80 | Medium formations with high compressive strength, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder inter-beds, etc. |
435 445 |
0.35-0.95 | 150-60 | Very soft formations with low compressive strength and high drill-ability , such as clay, mudstone, chalk, gypsum, salt, soft shale, soft limestone, etc. |
515 525 |
0.3-0.8 | 200-80 | Soft formations with low compressive strength and high drill-ability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc. |
535 545 |
0.35-0.9 | 180-80 | Soft to medium formations with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive inter-beds, etc. |
615 625 |
0.35-1.0 | 180-80 | Medium hard formations with high compressive strength, such as hard shale, limestone, sandstone, dolomite, etc. |
635 | 0.4-1.1 | 150-60 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite, hard gypsum, marble, etc. |