煤炭地下气化燃空区范围TEM探测方法

在煤炭地下气化试验中，燃空区的范围及发展状况是影响其产气过程连续稳定进行的重要因素，作为尝试，应用瞬变电磁法（TEM）对唐山刘庄煤矿煤炭地下气化燃空区进行了探测，简述了气化煤层的地球物理特征，介绍了TEM的基本原理及刘庄煤9#和12#煤层地下气化炉燃空区的探测方法，并对部分测点的测试数据质量进行了评价，通过对探测结果的分析及解释，基本上查明了9#和12#煤层地下气化炉燃空区的位置和范围，达到了预期的目的和效果，从而为制定地下气化技术工艺方案，提供了必要的科学依据。

TEM Detection Method of Combustion Space Area in Underground Coal Gasification

The scope and development state of Combustion Space Area(CSA) is an important factor,affecting continuously stable proceeding for its yielding gas process in the test of underground coal gasification. As an attempt, we use the pulse Transient Electriomagnetic Method (TEM) to detect the CSA of underground coal gasification at Liuzhuang coal mine, Tangshan. The geophysical characteristic of the gasification coal seam is recounted briefly. The rationale of the TEM and detection method of the CSA in the underground gasification stove for 9 # and 12 # coal seam at Liuzhuang coal mine are introduced, and then we have an evaluation to test data quality of the part survey point. Through analysis and explanation of probing results, the position and limits of the CSA in the underground gasification stove of the 9 # and 12 # coal seam are basically found out,attaining the desired goal and effect. Thereby it has provided an essential scientific foundation for us to formulate technology schemes of the underground gasification.