震电勘探方法在大庆油田的实验研究
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摘要
为检验前苏联和美国提出的某些震电勘探方法的实用性，在大庆开展了震电勘探方法实验，包括直流电场对地震波的影响以及地震波与电磁波的相互激发。实验是通过自制的电场前置放大器和已有的商用仪器在野外进行的。实验发现，在１０Ａ直流电场环境下，地震叠前炮记录上反射同相轴连续性变好，接收到第一类震电效应所引起的伴随电场和转换电磁波，这对震电勘探在大庆的进一步应用具有重要意义。
Seismo-electric coupling has potential application on exploring oil, gas and water.In order to clear the charactere of the effect, several tests on seismo-electric couplinghave been carried out successfully in Daqing Oilfield. The experiments show thatseismo-electric coupling takes place between DC electric field and seismic wave.Under 10A DC field circumstances, the continuity of prestack seismic events becomesbetter. Electric field signals companying the seismic wave due to the first typeseismo-electric effect on the surface are received. A horizontal electric field signalwith the same travel time characters as seismo-electric convened wave from 400mdepth is also observed.
Seismo-electric coupling has potential application on exploring oil, gas and water.In order to clear the charactere of the effect, several tests on seismo-electric couplinghave been carried out successfully in Daqing Oilfield. The experiments show thatseismo-electric coupling takes place between DC electric field and seismic wave.Under 10A DC field circumstances, the continuity of prestack seismic events becomesbetter. Electric field signals companying the seismic wave due to the first typeseismo-electric effect on the surface are received. A horizontal electric field signalwith the same travel time characters as seismo-electric convened wave from 400mdepth is also observed.
引文
1刘洪,李幼铭.对利用震电效应勘探油气水的几点看法.石油物探,1994,33(2):94-101LIU Hong, LI You-Ming. Comments on exploring oil, gas and water seismoelectric effect. GeophysicalProspecting for Petroleum, 1994, 33(2): 94-101
2 Thompson A H, Gist G A. Geophysical applications of electrokinetic conversion. The Leading Edge, 1993,1169-1173
3 Morgan F D, Madden E R, Madden T R. Streaming potential properties of westeriy granite with application.J. Geophys. Res., 1989, 12449-12461
4 Neev J, Yeatts F R. Electrokinetic effects in fluid saturated poroelastic media, Phys. Rev. (B), 1989, 40:9135-9142
5 Pride S. Governing equations for the coupled electromagnetics and acoustics of porous media. Phys. Rev. (B),1994, 50: 15678-15696
6 Zhu Z, Cheng C, Toks z M., Experimental study of flexural waves in a fractured or cased borehole model.64th Ann, Internat. Mtg, Soc. Expl. Geophys.,Abstract:, 1994, 70-73
7 Haartsen M W. Coupled Electromagnetic and acoustic wavefield modeling in poroelastic media and itsapplications in geophysical exploration [Ph. D Thesis]. Cambridge: MIT, 1995
8裘慰庭,震电效应在油气勘探中的应用前景。见:牛毓荃主编。石油物探新技术系列调研成果,北京:石油工业出版社, 1996. 640-651QIU Wei-Ting. Application prospect of seismo-electric effect in petroleum exploration, In: NIU Yu-Quan ed.Review on New Technique of Petroleum Geophysics Exploration, Beijing: Petroleum Industry Press, 1996.640-651
9戴世坤。双相介质中的震电效应和震电波场传播理论,博士后研究工作报告,石油大学, 1996DAI Shi-Kun. Seismo-electric effect in porous medium and seismo-electric wave theory [Postdoc researehreport]. Beijing: University of Petroleum, China, 1996
10波达波夫著,震电勘探方法,裘慰庭译。北京:石油工业出版社, 1997Potapof O A. Principle of Seismo-electric Prospecting (in Chinese), Trans. by QIU Wei-Ting. Beijing:Petroleum Industry Press, 1997
11赵玉林,钱复业,张德倍等。地电台的最佳台址条件──岩石电阻率对应变的高放大系数及低的干扰幅度(地磁地电分册).北京:地震出版社, 1988. 170-179ZHAO Yu-Lin, QIAN Fu-Ye, ZHANG De-Bei, et al. Optimation Condition for Geo-electric observationStation: Rock Resistively High Amplifier Coefficients for Stress and Low Noise Amplitude (Geomagnetic andGeoelectric Volume). Beijing: Seismological Press, 1988. 170-179
2 Thompson A H, Gist G A. Geophysical applications of electrokinetic conversion. The Leading Edge, 1993,1169-1173
3 Morgan F D, Madden E R, Madden T R. Streaming potential properties of westeriy granite with application.J. Geophys. Res., 1989, 12449-12461
4 Neev J, Yeatts F R. Electrokinetic effects in fluid saturated poroelastic media, Phys. Rev. (B), 1989, 40:9135-9142
5 Pride S. Governing equations for the coupled electromagnetics and acoustics of porous media. Phys. Rev. (B),1994, 50: 15678-15696
6 Zhu Z, Cheng C, Toks z M., Experimental study of flexural waves in a fractured or cased borehole model.64th Ann, Internat. Mtg, Soc. Expl. Geophys.,Abstract:, 1994, 70-73
7 Haartsen M W. Coupled Electromagnetic and acoustic wavefield modeling in poroelastic media and itsapplications in geophysical exploration [Ph. D Thesis]. Cambridge: MIT, 1995
8裘慰庭,震电效应在油气勘探中的应用前景。见:牛毓荃主编。石油物探新技术系列调研成果,北京:石油工业出版社, 1996. 640-651QIU Wei-Ting. Application prospect of seismo-electric effect in petroleum exploration, In: NIU Yu-Quan ed.Review on New Technique of Petroleum Geophysics Exploration, Beijing: Petroleum Industry Press, 1996.640-651
9戴世坤。双相介质中的震电效应和震电波场传播理论,博士后研究工作报告,石油大学, 1996DAI Shi-Kun. Seismo-electric effect in porous medium and seismo-electric wave theory [Postdoc researehreport]. Beijing: University of Petroleum, China, 1996
10波达波夫著,震电勘探方法,裘慰庭译。北京:石油工业出版社, 1997Potapof O A. Principle of Seismo-electric Prospecting (in Chinese), Trans. by QIU Wei-Ting. Beijing:Petroleum Industry Press, 1997
11赵玉林,钱复业,张德倍等。地电台的最佳台址条件──岩石电阻率对应变的高放大系数及低的干扰幅度(地磁地电分册).北京:地震出版社, 1988. 170-179ZHAO Yu-Lin, QIAN Fu-Ye, ZHANG De-Bei, et al. Optimation Condition for Geo-electric observationStation: Rock Resistively High Amplifier Coefficients for Stress and Low Noise Amplitude (Geomagnetic andGeoelectric Volume). Beijing: Seismological Press, 1988. 170-179
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