千米钻机穿层长钻孔测定煤层瓦斯压力

Measurement of Pressure of Gas in Coal Layer Using Thousand-meter Drilling Machine to Drill through Coal Layer to Get Long Borehole

使用千米钻机施工穿层测压长钻孔可以定向定点精确选择见煤点,穿层长钻孔有较长的岩石段,避开了采动、瓦斯抽采及其他人为卸压影响,且封孔长度较长,进一步增加了测压钻孔密闭性,保证了测压数据的可靠性和准确性,取得了良好的效果,可以推广应用该测压方法。

Locate the coal precisely by measuring pressure of coal layer, using thousand-meter drilling machine to drill through coal layer to get long borehole. Drill through rock layers to get long borehole, which could avoid the mining, gas extraction and other human relief impact. Also sealing length is longer, which could increase the airtight of load drilling, and ensure the data of measurement of pressure is reliable and accurate. Achieved great results, and applied the application this method of measuring pressure of coal layer.