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在煤田勘探阶段,准确地掌握煤层瓦斯资料是经济合理地进行矿井设计的重要依据之一。但目前,在勘探阶段仍缺乏获得准确瓦斯资料的有效工具,以致造成一些勘探报告中没有瓦斯资料或所提供的瓦斯资料准确性较差。为此,我们在重庆煤炭研究所协助下研制了一种钻孔瓦斯压力测定仪(简称“测压仪”),通过在勘探钻孔中测定煤层瓦斯压力参数的方法,以实现获得比较准确的煤层瓦斯含量的目的。试验证明,该仪器基本上是成功的。现将仪器及测量效果简介如下,供有关单位参考,不当或错误处希予批评指正。
In coalfield exploration stage, accurately grasping the coal seam gas data is an important and reasonable basis for mine design. However, at present, there is still a lack of effective tools for obtaining accurate gas data during the exploration phase, resulting in the lack of accuracy of the gas data in some exploration reports or the accuracy of the gas data provided. To this end, we have developed a borehole gas pressure gauge (“pressure manometer”) with the assistance of the Chongqing Coal Research Institute. Through the method of determining the gas pressure parameters of coal seam in the exploration borehole, we can achieve a more accurate The purpose of coal seam gas content. Test proved that the instrument is basically successful. Now the instrument and measurement results are as follows, for the relevant units, improper or wrong to give criticism and correction.