Abstract：Both resistivity and polarization information are discussed in the time and frequency electromagnetic (TFEM) data.Usually only the frequency domain information such as polarization information is extracted and used for hydrocarbon exploration.However,some time-domain induced polarization (IP) parameters may be easier to be extracted,and they are more sensitive to hydrocarbon.Based on simplification of generalized effective-medium theory of induced polarization (GEMTIP) model in the frequency domain,GEMTIP model in the time domain is derived with inverse Laplace transform.The combined coupling and induced-polarization model is built and used to inverse true IP parameters.The proposed method is applied to Line 02 TFEM data acquired at the structure of Wenan Ramp-Dacheng Up-lift in the North China.Curves of interface induce polarization parameters are extracted.Comparing with chargeability profiles and phase parameters in the frequency domain obtained from the same TFEM data,we discover the great accordance in the anomaly position and size.Our results prove the effectiveness of the proposed method and enhanced reliability of hydrocarbon detection.This method features easy extraction,quick inversion,and obvious validity,which may provide great help for oil and gas detection with TFEM.
张锐锋, 严良俊, 孙社敏, 降栓奇, 谢兴兵, 靳国庆. 时频电磁法时域激电参数提取与应用[J]. 石油地球物理勘探, 2016, 51(6): 1227-1232.
Zhang Ruifeng, Yan Liangjun, Sun Shemin, Jiang Shuanqi, Xie Xingbing, Jin Guoqing. IP parameter extraction from TFEM data in the time domain. OGP, 2016, 51(6): 1227-1232.
Marshall D J,Madden T R. Induced polarization,a study of its causes. Geophysics,1959,24(4):790-816.
[2]
Schlumberger C. Etude sur la prospection electrique du sous-sol. Gauthier-Villars,1920.
[3]
傅良魁. 电法勘探教程. 北京:地质出版社,1983.
Fu Liangkui. Electrical Prospecting Tutorial. Geological Press,Beijing,1983.
[4]
李金铭. 激发极化法找水基础理论研究. 北京:地质出版社,1994.
Li Jinming. Basic Theory of Induced Polarization Method to Find Water. Geological Press,Beijing,1994.
[5]
罗延钟,张桂青. 频率域激电法原理. 北京:地质出版社,1988.
Luo Yanzhong,Zhang Guiqing. The Principle of Frequency Domain IP. Geological Press,Beijing,1998.
[6]
Nelson P H. Induced-polarization effects from grounded structures. Geophysics,1977,42(6):1241-1253.
[7]
Carlson N R,Hughes L J,Zonge K L. Hydrocarbon exploration using induced polarization,apparent resistivity and electromagnetic scattering. SEG Technical Program Expanded Abstracts,1981,1339-1358.
[8]
Machel H G, Burton E A. Chemical and microbial processes causing anomalous magnetization in environments affected by hydrocarbon seepage. Geophy-sics,1991,56(5):598-605.
[9]
Reynolds R L,Goldhaber M B,Tuttle M L. Sulfidization and magnetization above hydrocarbon reservoirs. AAPG Bulletin American Association of Petroleum Geologists, 1991,75(3):661-661
[10]
Sternberg B K. A review of some experience with the induced-polarization/resistivity method for hydrocarbon surveys:Successes and limitations. Geophysics,1991,56(10):1522-1532.
Zhang Saizhen,Li Yinxian,Zhou Jiping et al. The polarization method in detecting oil and gas field excitation-Discussion anomalies in its relationship with the reservoir. Chinese Journal of Geophysics,1986,29(6):597-613.
Zhang Saizhen,Shi Kunfa,Zhou Jiping et al. Theore-tical foundation of applications and application effect of induced polarization method. Geophysical and Geochemical Exploration,1989,13(5):392-400.
Liu Song. The effectiveness of IP method to directly reservoirs and the ways of improve application effects. Geological Science and Technology Information,1992,11(4):81-86.
Xu Chuanjian,Xu Zisheng,Yang Zhicheng et al. Complex resistivity (CR) method to detect the effect of the application of reservoir.OGP,2004,39(S):31-35.
He Zhanxiang,Wang Xuben. Reservoirs electrical anomalous electromagnetic modes with hydrocarbon detection. OGP, 2007,42(1):102-106.
[17]
Davydycheva S,Rykhlinski N,Legeido P. Electrical-prospecting method for hydrocarbon search using the induced-polarization effect. Geophysics,2006,71(4):G179-G189.
[18]
Cole K S, Cole R H. Dispersion and absorption in dielectrics Ⅰ:Alternating current characteristics. The Journal of Chemical Physics,1941,9(4):341-351.
[19]
Zhdanov M S. New geophysical technique for mineral exploration and mineral discrimination based on electromagnetic methods. University Of Utah, 2005.
[20]
Zhdanov M S. Generalized effective medium theory of induced polarization. SEG Technical Program Expanded Abstracts,2006,25:805-809.
[21]
Zhdanov M S. Generalized effective-medium theory of induced polarization. Geophysics,2008,73(5):F197-F211.
[22]
Dias C A. Developments in a model to describe low-frequency electrical polarization of rocks. Geophy-sics,2000,65(2):437-451.
[23]
Brown R J. EM coupling in multifrequency IP and a generalization of the Cole-Cole impedance model.Geo-physical Prospecting,1985,33(2):282-302.
[24]
Pelton W H, Ward S H, Hallof P G et al. Mineral discrimination and removal of inductive coupling with multifrequency IP.Geophysics,1978,43(3):588-609.
[25]
Kormiltsey. The IP in the electrody bamic equations. Sverdlovsk,Educational-Scientific Centre Academy of Sciences of the USSR,1981, 44.
[26]
Roy I G. An efficient non-linear least-squares 1D inversion scheme for resistivity and IP sounding data. Geophysical Prospecting,1999,47(4):527-550.
