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Non-magnetic drill collar types
Time:2022-11-3 15:15:12 Source:http://m.bustinboards.cn/ Author:Jiangsu HeRui alloy material technology co., LTD
Non-magnetic drill collar types
1. Non-magnetic drill collars are generally produced in accordance with API7-1 standards, with a length of 30FT or 31FT, i.e. 9150mm or 9450mm.
2.2, according to the shape can be divided into no magnetic drill collar, no magnetic spiral drill collar, no magnetic pressure drill pipe, no magnetic sub and so on.
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