EH-4电磁成像系统在热储构造勘查中的应用研究

地热区的地球物理勘查工作主要是探测地热系统周边的热储构造情况,EH-4电磁成像系统具有不受高阻层屏蔽、轻便、探测深度大等优点。根据地热区热储构造的特点,研究了该套系统在热储构造勘查中的几个关键技术,重点分析了平行试验的重要性、过渡带数据特征及其校正方法。通过在江西某温泉已知热储构造上的实验研究,分析总结了EH-4电磁成像系统在热储构造勘查中应用的可行性及有效性。

Application Research of EH-4 Electric Conductivity Imaging System in Survey of Reservoir Structure

In geophysical exploration work for reservoir structure, the issue mainly concentrated on geologic tectonic situations of geothermal systems. EH-4 electric conductivity imaging system is characterized by unshielding of high resistivity layers, portability, and large penetrating depth. Based on the characteristics of geothermal systems, some key techniques of EH-4 electric conductivity imaging system using in reservoir structure prospecting are investigated. The emphasis is the importance of parallel survey ,the source effect and its correct technique. This paper is based on the experimentation obtained with EH-4 electric conductivity imaging system in a known reservoir structure of JiangXi Province, the feasibility and validity of EH-4 to prospect reservoir structure is analyzed and summarized.