透射槽波在油页岩中探测断层的应用

Application of Transmission Channel Wave in Detecting Faults in Oil Shale

槽波是形成于岩-煤-岩中的一种导波,槽波技术经过多年发展,现已成为煤矿井下探测各种地质异常体最有效的手段之一,服务于煤矿的安全生产。油页岩是一种沉积岩,含可燃有机质,属于高灰分的腐泥煤,油页岩的开采跟煤层一样,同样受断层的影响。在采用槽波方法探测甘肃某矿油页岩层中断层的基础上,通过综合分析、定性解释,结合打钻与回采验证情况,得出槽波在油页岩层中发育较好,能够较准确地探测断距大于1/2煤厚的断层。

Channel wave is a kind of guided wave formed in rock-coal-rock.After years of development,channel wave technology has become one of the most effective methods for detecting various geological anomalies in coal mines,serving the safe production of coal mines.Oil shale is a kind of sedimentary rock that contains combustible organic matter.It is a sapropel coal with high ash content.The mining of oil shale is the same as coal seams,and is also affected by faults.On the basis of summarizing the groove wave method to detect the faulted layer of a certain mineral oil shale in Gansu,through comprehensive analysis,qualitative interpretation,combined with drilling and recovery verification,it shows that the groove wave is well developed in the oil shale layer and can be detected more accurately a fault with its distance greater than 1/2 coal thickness.