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Volume 14 Issue 3
Sep 2003
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Hanjie Yan, Hong Yan, Yunping Li, Xiaofeng Zhang. Theoretical Study on Stochastic Modeling of Combined Gravity-Magnetic-Electric-Seismic Inversion and Its Application. Journal of Earth Science, 2003, 14(3): 227-233.
Citation: Hanjie Yan, Hong Yan, Yunping Li, Xiaofeng Zhang. Theoretical Study on Stochastic Modeling of Combined Gravity-Magnetic-Electric-Seismic Inversion and Its Application. Journal of Earth Science, 2003, 14(3): 227-233.

Theoretical Study on Stochastic Modeling of Combined Gravity-Magnetic-Electric-Seismic Inversion and Its Application

Funds:

National "Tenth-five-year" Plan Special Project "Geological Assessment of Complex Subtle Reservior and Key Technology Study on Exploration of Jiyang Depression" 2001BA605A-09

  • Received Date: 20 Feb 2003
  • Accepted Date: 20 Mar 2003
  • As gravity field, magnetic field, electric field and seismic wave field are all physical fields, their object function, reverse function and compound function are certainly infinite continuously differentiable functions which can be expanded into Taylor (Fourier) series within domain of definition and be further reduced into solving stochastic distribution function of series and statistic inference of optimal approximation. This is the basis of combined gravity-magnetic-electric-seismic inversion of stochastic modeling. It is an uncertainty modeling technology of combining gravity-magnetic-electric-seismic inversion built on the basis of separation of field and source gravity-magnetic difference-value (D-value) trend surface, taking distribution-independent fault system as its unit, depths of seismic and electric interfaces of interests as its corresponding bivariate compound reverse function of gravity-magnetic anomalies and using high order polynomial (high order trigonometric function) approximating to its series distribution. The difference from current dominant inversion techniques is that, first, it does not respectively create gravity-seismic, magnetic-seismic deterministic inversion model from theoretical model, but combines gravity-magnetic-electric-seismic stochastic inversion model from stochastic model; second, after the concept of equivalent geological body being introduced, using feature of independent variable of gravity-magnetic field functions, taking density and susceptibility related to gravity-magnetic function as default parameters of model, the deterministic model is established owing tobetter solution to the contradiction of difficulty in identifying strata and less test analytical data for density and susceptibility in newly explored area; third, under assumption of independent parent distribution, a real modeling by strata, the problem of difficult plane closure arising in profile modeling is avoided. This technology has richer and more detailed fault and strata information than sparse pattern seismic data in newly explored area, successfully inverses and plots structural map of Indosinian discontinuity in Hefei basin with combined gravity-magnetic-electric-seismic inversion. With development of high precision gravity-magnetic and overall geophysical technology, it is certain for introducing new methods of stochastic modeling and computational intelligence and promoting the development of combined gravity-magnetic-electric-seismic inversion to open a new substantial path.

     

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  • Luo X K, Guo S Y, 1991. Applied Geophysical Course—Gravity and Magnetic. Beijing: Geological Publishing House
    Tan C Z, Guo S Y, 1988. Magnetic Exploration Course. Beijing: Geological Publishing House
    Yan H J, 2002. Discussion Inversion of Gravity-Magnetic-Seismic Stochastic Modeling. Petroleum Geophysics, 41(Suppl) : 230-233
    Yan H J, 1988. Oil and Gas Resource Evaluation Method and Its Application—D-Value Trend Surface Analysis. Beijing: Petroleum Industry Publishing House
    Yan H J, Dong T, 1996. High Degree Gravity D-Value Trend Surface Analysis. Abstract of 30th International Geological Congress. 25
    Yan H J, Zhang J S, 1998. Petroleum Geology and Geophysical Exploration—The Building of Comprehensive Database of Nonseismic Geochemical Exploration and Study for Its Processing Software in Shengli Petroleum Province. Beijing: Seismic Publishing House
    Yan HJ, Zou C T, 1991. China Mathematical Geology—Applica-tion of D-Value Trend Surface Analysis in Gravity Exploration. Beijing: Geological Publishing House
    ФиихтенгольцГМ, 1962. Calculus Course. Beijing: People's Education Press
    хинчинАЯ, 1962. Concise Course for Mathematical Analysis. Beijing: People's Education Press
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