Electrical structure characteristics of Ulungu Sag in Junggar Basin
Understanding the deep underground electrical structure of Ulungu Sag in Junggar Basin is of great significance for deep oil and gas exploration of Ulungu Sag in Junggar Basin.Based on the data of drilling,logging,geological outcrop observation and analysis,the geophysical characteristics of the study area are summarized,including the density characteristics,magnetic characteristics and electrical characteristics of the formation rocks.On this basis,the apparent resistivity curve smoothing and static migration correction of the electric field data of an original time series of magnetotelluric sounding in Ulungu Sag are processed,and the resistivity profile within 10 km underground depth of Ulungu Sag is obtained by Occam.Based on the resistivity profile and seismic and drilling data,the structural morphology of Ulungu Sag in Junggar Basin is preliminarily determined.It is found that there are high resistivity anomalies in the northwest and southeast end of Ulungu Sag,and low resistivity strata in the basement.The research conclusion is of great value for oil and gas exploration of Ulungu Sag in Junggar Basin.
万方数据
维普
