Determination of Coal-seam Gas Pressure in 1 000 m-deep Well under Complicated Geological Conditions
ZHANG Ganxing
YANG Shengqiang
ZHAN Yong
LUN Jiayun
ZHAO Huanhuan
XIA Chunbo
Abstract：In this paper, analysis was made on the advantages and disadvantages of the traditional hole sealing processes in order to accurately measure the coal-seam gas pressure in the deep well over 1 000 m, and based on their advantages, a new hole sealing process by grouting three times was proposed, and combining with the active pressure measuring technique, the coal-seam gas pressure can be measured accurately. This hole sealing process was tested in Liangbaosi Coal Mine, the coal-seam gas pressure of the mine was successfully measured, which provided basis for the gas control of Liangbaosi Coal Mine.
Keywords：determination of coal-seam gas pressurethree-times groutinghole packing process1 000 m-deep well
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 71-73,77 )