| 时频电磁(TFEM)勘探技术：数据采集系统 |
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| 引用本文： | 何展翔,陈忠昌,任文静,庞恒昌,田志权,沈义斌. 时频电磁(TFEM)勘探技术：数据采集系统[J]. 石油地球物理勘探, 2020, 55(5): 1131-1138. DOI: 10.13810/j.cnki.issn.1000-7210.2020.05.021 |
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| 作者姓名： | 何展翔 陈忠昌 任文静 庞恒昌 田志权 沈义斌 |
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| 作者单位： | 1. 南方科技大学前沿与交叉科学研究院, 广东深圳 518055;2. 南方海洋科学与工程广东省实验室(广州), 广东广州 511458;3. 南方科技大学深圳市深远海油气勘探技术重点实验室, 广东深圳 518055;4. 东方地球物理公司综合物化探处, 河北涿州 072751 |
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| 基金项目： | 本项研究受国家自然科学基金项目“深地/深海探测中强电流激发下可控源电磁法激电效应机理研究及应用”（41874085）、深圳市科技计划项目“深海深地资源探测技术系统研发”（KQTD20170810111725321）及南方海洋科学与工程广东省实验室（广州）人才团队引进重大专项“南海深部结构和地震灾害研究”（GML2019ZD0203）联合资助。 |
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| 摘 要： | 大功率电磁仪器系统是深部矿产资源勘探的基础，发展大功率、高精度电磁仪器具有重要意义。基于深层油气勘探需求开发的时频电磁（TFEM）勘探仪器系统，可同时实现时间域和频率域电磁一体化勘探。模拟研究证明，该系统的技术指标能够满足时间域与频率域、电法与磁法的一体化勘探要求，亦可实现近区和远区的数据采集。这套由东方地球物理公司（BGP）自主研制的时频电磁法仪器系统包括大功率恒流电磁发射机、分布式/节点式多类型电磁信号接收机等。接收机的动态范围大于120dB，可接收信号的频率范围是0.001~500Hz，数据采集实验证明其技术指标达到了国际同类仪器水平，可为中国深部资源勘探提供有力支撑。
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| 关 键 词： | 时频电磁(TFEM)仪器 对比测试 产业化应用 |
| 收稿时间： | 2020-04-23 |
Time-frequency electromagnetic(TFEM) method: Data acquisition system and its application |
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| HE Zhanxiang,CHEN Zhongchang,REN Wenjing,PANG Hengchang,TIAN Zhiquan,SHEN Yibin. Time-frequency electromagnetic(TFEM) method: Data acquisition system and its application[J]. Oil Geophysical Prospecting, 2020, 55(5): 1131-1138. DOI: 10.13810/j.cnki.issn.1000-7210.2020.05.021 |
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| Authors: | HE Zhanxiang CHEN Zhongchang REN Wenjing PANG Hengchang TIAN Zhiquan SHEN Yibin |
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| Affiliation: | 1. SUSTech Academy for Advanced Interdisciplinary Studies, Shenzhen, Guangdong 518055, China;2. Southern Marine Science and Engineering Guangdong Laboratory, Shenzhen, Guangdong 511458, China;3. Shenzhen Key Laboratory of Deep Offshore Oil and Gas Exploration Technology, Department of Earth and Spaces Science, SUSTech, Shenzhen, Guangdong 518055, China;4. GME & Geochemical Surveys of BGP, CNPC, Zhuozhou, Hebei 072751, China |
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| Abstract: | A high-power electromagnetic instrument system is the foundation of deep mineral resource exploration. It is of great significance to develop high-power and high-precision electromagnetic instruments. The time-frequency electromagnetic (TFEM) exploration instrument system based on deep oil and gas exploration demand can realize electromagnetic integration exploration in the time domain and frequency domain simultaneously. The simulation results show that the technical indexes of the system can meet the requirements of integrated exploration of time domain and frequency domain, electric method and magnetic method, and can also realize data acquisition in near and far regions. This time-frequency electromagnetic instrument system independently developed by BGP includes high-power constant-current electromagnetic transmitter and distributed/nodal multi-type electromagnetic signal receiver. The dynamic range of the receiver is greater than 120dB, and the frequency range of the received signal is 0.001-500Hz.The data acquisition experiment proves that its technical index reaches the international level of similar instruments, which can provide strong support for China's deep resource exploration. |
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| Keywords: | Time-frequency electromagnetic instrument comparative test industrialized application |
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