KSQ Technologies (Beijing) Co. Ltd
KSQ Technologies (Beijing) Co. Ltd At KSQ We always look at the business in your point of view.
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API drill collar for oil well drilling diameter from 76mm to 280mm
Technical Parameter
| Drill Pipe Diameter | Upset Type | RSC Model | Steel Grade | Wall Thickness mm | External diameter if upset end mm | Internal diameter of upset end mm | |
| Mm | in | ||||||
| 60 | 2 3/8 | EU | NC26 | DZ50,R780 | 6 / 7.11 | 65.1 | 46.10 |
| EU | NC26 | G105,S135 | 7.11 | 65.1 | 39.67 | ||
| 73 | 2 7/8 | EU | NC31 | DZ50,R780 | 9 | 81.0 | 54.64 |
| EU | NC31 | G105,S135 | 9.19 | 81.0 | 50.80 | ||
| 89 | 3 1/2 | EU | NC38 | DZ50,R780 | 10 | 98.4 | 66.09 |
| EU | NC38 | G105,S135 | 9.35 | 98.4 | 63.50 | ||
| 114 | 4 1/2 | IEU | NC46 | DZ50,R780 | 8 | 127.0 | 92.00 |
| IEU | NC46 | G105,S135 | 8.56 | 119.1 | 73.02 | ||
| EU | NC50 | G105,S135 | 8.56 | 127.0 | 90.47 | ||
| 127 | 5 | IEU | NC50 | DZ50,R780 | 10 | 130.2 | 90.47 |
| IEU | NC50 | G105,S135 | 9.19 | 130.2 | 90.47 | ||
| 139.7 | 5 1/2 | IEU | 5 1/2FH | G105,S135 | 9.17 | 144.5 | 96.82 |
| 168 | 6 5/8 | IEU | 5 1/2FH | G105,S135 | 9.19 | 176.2 | 135.00 |
About us
Our company's drill pipes are in accordance with API 5D, API SPEC 7 Standards. The
material of drill pipe body are chosen by the 1&3 group of API 5D.(Group 1-Grade E75;
Group 3-Grade X95, G105, S135).
The choice of tool joints is according to the customers’requirements, and the tool joints
are up to API SPEC7 Standards.