Open AccessStudy the sealing pore technique of the nearly horizontal gas drainage hole in-seam
Author(s) -
Song Wang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/3/032013
Subject(s) - petroleum engineering , drilling , coal mining , pore water pressure , directional drilling , drainage , geology , geotechnical engineering , pipeline transport , gas pressure , mining engineering , coal , materials science , engineering , mechanical engineering , waste management , metallurgy , ecology , biology
Through analyzing the influencing factors of hole sealing effect, the “eccentric drilling-pressure grouting” sealing pore technique was put forward, and was practiced in Yonghong coal mine. By contrasting its effect and, and verifying its reasonableness, the gas concentration in the drainaging pipelines was improved.