Prevention and Control of Hydrogen Sulphide Accidents in Mining Extremely Thick Coal Seam: A Case Study in Wudong Coal Mine

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="10"><hr/></td></tr><tr class="thead"><td class="align_left">Borehole no.</td><td class="align_center">1#</td><td class="align_center">2#</td><td class="align_center">3#</td><td class="align_center">4#</td><td class="align_center">5#</td><td class="align_center">6#</td><td class="align_center">7#</td><td class="align_center">8#</td><td class="align_center">9#</td></tr><tr><td class="thead-hr" colspan="10"><hr/></td></tr><tr><td class="align_left">Angle</td><td class="align_center">130°</td><td class="align_center">116°</td><td class="align_center">102°</td><td class="align_center">91°</td><td class="align_center">76°</td><td class="align_center">51°</td><td class="align_center">33°</td><td class="align_center">18°</td><td class="align_center">7°</td></tr><tr class="table-tr"><td colspan="10"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The angle of each borehole for preinjecting hydrogen sulphide gas absorbent solution.</div>

Geofluids

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Table 2

Table 2: Prevention and Control of Hydrogen Sulphide Accidents in Mining Extremely Thick Coal Seam: A Case Study in Wudong Coal Mine 