降低地勘瓦斯含量测试误差的新方法及应用

A new method to reduce error of geological survey gas content test and its application

瓦斯含量是最重要的煤层瓦斯基础参数之一,准确测试瓦斯含量对于矿井瓦斯涌出量预测、煤与瓦斯突出防治、矿井瓦斯综合治理等工作至关重要,目前在地勘阶段对瓦斯含量的测试主要采用地勘解吸法,此法在煤田地质勘探与开发工作中虽广泛应用,但存在较大的误差与缺陷。为此研究应用了一种旨在降低地勘瓦斯含量测试误差的新方法——实验趋近法。实践表明,实验趋近法极大降低了地勘瓦斯含量的测试误差,具备较广泛的应用前景。

Gas content is one of the most important coal seam gas parameters. Accurate testing of gas content is essential for mine gas emission prediction,coal and gas outburst prevention and control,mine gas comprehensive management and so on. At present,the test of gas content during the geological prospecting period is mainly carried out by geologic prospecting,which is widely used in the geological exploration and development of coal field,but there are big errors and defects. A new method for testing the error of geological survey of geological survey is proposed. Practice shows that the experimental approach greatly reduces the geological survey of gas content of the test error,with a wide range of applications.