| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4675123 | Procedia Earth and Planetary Science | 2011 | 7 Pages |
Abstract
Based on the analysis of the borehole accidents regularly happened in horizontal directional drilling in underground coal mine, the paper contrastively introduces some treatment techniques, especially analyses the washover technology and then guides the design of the fishing tools applied to it. Eventually the washover technology and the fishing tools applied are proved to be practicable through the field trial.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
