| Use: | Well Drilling |
|---|---|
| Material: | High Carbon Steel |
| Type: | roller cone |
| Model Number: | 8 1/2" |
| Brand Name: | crossing |
| Place of Origin: | China (Mainland) |
| color:blue: | size: 8 1/2" |
Quick Details
Specifications
Roller cone
1. Pictures
2.Information
2.Information
IADC CODE SELECTION | |||
IADC |
WOB |
RPM |
Application |
(KN/mm) |
(r/min) | ||
111/114/115 |
0.3-0.75 |
200-80 |
Very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk |
116/117 |
0.35-0.8 |
150-80 |
Very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk |
121 |
0.3-0.85 |
200-80 |
Soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone |
124/125 |
180-60 | ||
131 |
0.3-0.95 |
180-80 |
Soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds |
136/137 |
0.35-1.0 |
120-60 | |
211/241 |
0.3-0.95 |
180-80 |
Medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds. |
216/217 |
0.4-1.0 |
100-60 | |
246/247 |
0.4-1.0 |
80-50 |
Medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite |
321 |
0.4-1.0 |
150-70 |
Medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble |
324 |
0.4-1.0 |
120-50 | |
437/447/435 |
0.35-0.9 |
240-70 |
Very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone |
517/527/515 |
0.35-1.0 |
220-60 |
Soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone |
537/547/535 |
0.45-1.0 |
220-50 |
Soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds |
617/615 |
0.45-1.1 |
200-50 |
Medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite |
637/635 |
0.5-1.1 |
180-40 |
Hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble |
Note: above limits of WOB and RRPM should not be used simultaneously | |||