Sensing underground coal gasification by ground penetrating radar
Sensing underground coal gasification by ground penetrating radar
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DOI：
10.1007/s11600-017-0095-9
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发表时间：
2017-12-01
期刊：
影响因子：
2.3
通讯作者：
Stanczyk, Krzysztof
中科院分区：
文献类型：
--
作者：
Kotyrba, Andrzej;Stanczyk, Krzysztof
本文介绍了探地雷达（GPR）遥感监测煤炭地下气化（UCG）过程的适用性研究结果。煤在床中的气化涉及各种技术问题，并对环境造成风险。因此，在研究煤气化技术的同时，有必要开发工艺环境遥感技术。一种这样的技术可以是雷达方法，其允许在床中进行气化过程期间和之后对煤中的质量损失区域（空隙、裂缝）进行成像。本文介绍了两个研究实验。第一个是在地面上建造的大型模型上进行的。它模拟了自然地质条件下的煤层。第二个实验是在一个废弃矿井中的浅层煤存款中进行的，并保持可访问性以用于研究目的。在实验室和现场条件下进行的测试表明，该方法提供了宝贵的数据，评估和监测气化表面的UCG过程。探地雷达方法的优点是它的高分辨率和确定各种区域的空间形状的可能性，并通过气化过程在煤中产生的形式。
The paper describes the results of research on the applicability of the ground penetrating radar (GPR) method for remote sensing and monitoring of the underground coal gasification (UCG) processes. The gasification of coal in a bed entails various technological problems and poses risks to the environment. Therefore, in parallel with research on coal gasification technologies, it is necessary to develop techniques for remote sensing of the process environment. One such technique may be the radar method, which allows imaging of regions of mass loss (voids, fissures) in coal during and after carrying out a gasification process in the bed. The paper describes two research experiments. The first one was carried out on a large-scale model constructed on the surface. It simulated a coal seam in natural geological conditions. A second experiment was performed in a shallow coal deposit maintained in a disused mine and kept accessible for research purposes. Tests performed in the laboratory and in situ conditions showed that the method provides valuable data for assessing and monitoring gasification surfaces in the UCG processes. The advantage of the GPR method is its high resolution and the possibility of determining the spatial shape of various zones and forms created in the coal by the gasification process.