Time-frequency electromagnetic (TFEM) technology: Data processing
HE Zhanxiang1,2,3, DONG Weibin4, ZHAO Guo4, HOU Yujian1, SHEN Yibin1,3, LIU Xuejun4
1. Shenzhen Key Laboratory of Deep Offshore Oil and Gas Exploration Technology, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China; 2. Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou), Guangzhou, Guangdong 511458, China; 3. Department of Earth and Space Sciences SUSTech, Shenzhen, Guangdong 518055, China; 4. GME & Geochemical Surveys, BGP, CNPC, Zhuozhou, Hebei 072751, China
Abstract:Time-frequency electromagnetic (TFEM) technology has been used in oil and gas exploration for more than 20 years and plays an important role in the field. Systematic research on TFEM data processing is of great significance for the development of this method. Regarding TFEM data processing, this paper makes clear its flow and analyzes its characteristics and advantages. Moreover, the paper gives the concept of the electromagnetic attribute, improves the method to extract main electromagnetic attribute parameters, and determines the oil-water identification factor of the TFEM method. The oil-bearing and water-bearing examples of an actual exploration area are presented, and the constraint processing and interpretation method of reservoir target multiplicity is further clarified. An actual section showing the superposition of oil-gas factors and seismic anomalies can better indicate the favorable oil-bearing targets. This research put forwards the development direction of the TFEM data processing method and has important practical value.
柳建新, 赵然, 郭振威.电磁法在金属矿勘查中的研究进展[J]. 地球物理学进展, 2019, 34(1):151-160.LIU Jianxin, ZHAO Ran, and GUO Zhenwei.Research progress of electromagnetic methods in the exploration of metal deposits[J]. Progress in Geophy-sics, 2019, 34(1):151-160.
[6]
刘国辉, 张献民, 贾学民.地下水资源电法勘探新技术[M].北京:地震出版社, 2007.
[7]
底青云, 朱日祥, 薛国强, 等.我国深地资源电磁探测新技术研究进展[J]. 地球物理学报, 2019, 62(6):2128-2138.DI Qingyun, ZHU Rixiang, and XUE Guoqiang, et al.New development of the electromagnetic(EM) me-thods for deep exploration[J]. Chinese Journal of Geo-physics, 2019, 62(6):2128-2138.
Dong W B, Zhao X M, Liu F, et al.The time-frequency electromagnetic method and its application in western China[J]. Applied Geophysics, 2008, 5(2):127-135.
[11]
He Z X, Suo X D, Hu Z Z, et al.Time-frequency electromagnetic method for exploring favorable deep ig-neous rock targets:a case study from north Xinjiang[J]. Journal of Environmental and Engineering Geophysics, 2019, 24(2):215-224.
[12]
何展翔, 陈忠昌, 任文静, 等.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.HE Zhanxiang, CHEN Zhongchang, and REN Wenjing, et al.Time-frequency electromagnetic(TFEM) method:Data acquisition system and its application[J]. Oil Geophysical Prospecting, 2020, 55(5):1131-1138.
[13]
何展翔, 杨国世, 陈思琪, 等.时频电磁(TFEM)技术:数据采集参数设计[J]. 石油地球物理勘探, 2019, 54(4):908-914.HE Zhanxiang, YANG Guoshi, and Chen Siqi, et al.Time-frequency electromagnetic(TFEM) method:Data acquisition design[J]. Oil Geophysical Prospecting, 2019, 54(4):908-914.
[14]
何展翔, 胡祖志, 王志刚, 等.时频电磁(TFEM)技术:数据联合约束反演[J]. 石油地球物理勘探, 2020, 55(4):898-905.HE Zhanxiang, HU Zuzhi, and WANG Zhigang, et al.Time-frequency electromagnetic(TFEM) technique:step-by-step constraint inversion based on artificial fish swarm algorithm[J]. Oil Geophysical Prospecting, 2020, 55(4):898-905.
[15]
王志刚, 何展翔, 覃荆城, 等.时频电磁技术的新进展及应用效果[J]. 石油地球物理勘探, 2015, 50(增刊):144-151.WANG Zhigang, HE Zhanxiang, QIN Jingcheng, et al.New developments of TFEM and the application[J]. Oil Geophysical Prospecting, 2015, 50(S):144-151.
[16]
He Z X, Yu G, Wang Z G, et al.Advanced progress of TFEM method for hydrocarbon mapping[C].SEG Technical Program Expanded Abstracts, 2017, 36:1225-1230.
[17]
He Z X, Hu W B, Dong W B.Petroleum EM prospecting advances and case studies in China[J]. Surveys in Geophysics, 2010, 31(2):207-224.
[18]
徐桂芬, 何展翔, 石艳玲, 等.电磁-地震联合研究深层火山岩储层——以辽东凹陷火山岩勘探为例[J]. 石油地球物理勘探, 2019, 54(4):937-946.XU Guifen, HE Zhanxiang and SHI Yanling, et al.Electromagnetic-seismic combination for deep volcanic reservoirs study:A case study of volcanic investigation in Liaodong Sag[J]. Oil Geophysical Prospecting, 2019, 54(4):937-946.
[19]
He Z X, Zhao Z, Liu H Y, et al.TFEM for oil detection:Case studies[J]. The Leading Edge, 2012, 31(5):518-521.
[20]
高妍, 沈金松, 何展翔, 等.TFEM探测JZ地区潜山内幕目标的模拟及试验[J]. 石油地球物理勘探, 2015, 50(6):1207-1212.GAO Yan, SHEN Jinsong, and HE Zhanxiang, et al.Target detection simulation and experiments in buried hills with TFEM method[J]. Oil Geophysical Prospecting, 2015, 50(6):1207-1212.
[21]
Wang C H, He Z X, Ge Y H.Lithology study using TFEM technique in western Qaidam Basin[C].SEG Technical Program Expanded Abstracts, 2006, 25:825-829.
[22]
赵殿栋.高精度地震勘探技术发展回顾与展望[J]. 石油物探, 2009, 48(4):425-435.ZHAO Diandong.Review and prospect on high-precision seismic exploration technique[J]. Geophysical Prospecting for Petroleum, 2009, 48(4):425-435.
[23]
李庆忠.走向精确勘探的道路[M].北京:石油工业出版社, 1994.
[24]
赵邦六, 何展翔, 文百红.非地震直接油气检测技术及其勘探实践[J]. 中国石油勘探, 2005, 10(6):29-37.ZHAO Bangliu, HE Zhanxiang, and WEN Baihong.Non-seismic technique for direct oil-gas detection and its exploration practice[J]. China Petroleum Exploration, 2005, 10(6):29-37.
[25]
何展翔, 王绪本.油气藏电性异常模式与电磁法油气检测[J]. 石油地球物理勘探, 2007, 42(1):102-106.HE Zhanxiang, WANG Xuben.Geo-electrical anomalous pattern of reservoir and oil/gas detection by electromagnetic survey[J]. Oil Geophysical Prospecting, 2007, 42(1):102-106.
李貅, 郭文波, 胡建平.瞬变电磁测深快速拟地震解释方法及应用效果[J]. 西安工程学院学报, 2001, 23(3):42-45.LI Xiu, GUO Wenbo, and HU Jianping.The method and application effects of pseudo-seismic interpretation of TEM[J]. Journal of Xi'an Engineering University, 2001, 23(3):42-45.