A tool for gas dynamic logging in drainage holes
The paper presents the design and specifications of a modular down-the-hole logging tool to analyze gas dynamics in horizontal uncased drainage holes drilled from roadways. The tool incorporates a pneumatic push bar to advance the tool in the hole together with air hose and electric cable, an electr...
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| Veröffentlicht in: | IOP conference series. Earth and environmental science 2020-06, Vol.523 (1), p.12019 |
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| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | The paper presents the design and specifications of a modular down-the-hole logging tool to analyze gas dynamics in horizontal uncased drainage holes drilled from roadways. The tool incorporates a pneumatic push bar to advance the tool in the hole together with air hose and electric cable, an electro-drive air control, inflatable removable sealer and a flow rate for gas flow from a sealed section of a hole to its mouth. The author gives recommendations on using the tool in coal mines. |
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| ISSN: | 1755-1307 1755-1315 |
| DOI: | 10.1088/1755-1315/523/1/012019 |