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Spiral drill pipe, single spiral, double spiral, three spiral performance distinction?
Release time:
2019-01-15
Author:
Source:
Spiral number: single spiral, double spiral, three spiral of different design, is to meet the needs of different geological conditions and drilling process, especially with reference to the needs of slag efficiency and selection. Compared with multi-channel spiral, single spiral has the characteristics of large slag discharge thrust due to its smaller relative pitch, and drill slag is not easy to adhere to the drill pipe, which can better adapt to the looser and sticky drilling environment. Compared with multi-channel spiral design, the number of spiral turns increases, thus the movement time of drill slag in the borehole is longer, and the spiral thrust is relatively low. In the product introduction, the process should be selected reasonably according to the drilling conditions of the customer.
Key words:
Spiral, drilling, thrust, demand, conduct, process, drill pipe, multi-channel, selection
