Prediction study on the hydrocarbon reservoir based on Time-Frequency Domain Electromagnetic — Taking the Ili basin as the example
The time-frequency domain electromagnetic (TFEM) sounding technique can directly detect the oil and gas characteristics through the anomaly of resistivity and polarizability. In recent years, it has made some breakthroughs in the hydrocarbon detection. In order to predict the petroliferous property of the Ili basin, The TFEM was carried out. According to the geological structure characteristics of the study area, a Two-Dimensional layered medium model is constructed, and the forward modeling is carried out. We use the forward modeling results to guide the field construction and ensure the quality of the field data collection. We use the model inversion results to identify and distinguish the resolution of the geoelectric information, and provide a reliable basis for data processing. Based on that, the key technologies such as 2D 2-D resistivity tomography imaging inversion, polarimetric constrained inversion have been developed, and we obtained the abundant geological and geophysical information. Though the analysis of the electrical logging data in the study area, the characteristics of TFEM anomalies of the hydrocarbon reservoirs in the Ili basin are summarized. And more, the oil-gas properties of the Permian and Triassic layers have been predicted, and the next favorable exploration targets have been optimized.
KeywordsTime Frequency Domain Electromagnetic Hydrocarbon Detection Polarizability Anomaly Favorable Area Prediction
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- Gao, Y., Shen, J. S., He, Z. X., et al., 2015, Target detection simulation and experiments in buried hills with TFEM method: Oil Geophysical Prospecting, 50(6), 1207–1212.Google Scholar
- Liu, X. J., 2003, The application of controlled-source EM methods in oil and gas exploration: Geology and Prospecting, 39(suppl), 10–14.Google Scholar
- Ma, Y. S., 2016, Research on identification of organic-rich shales using seismic constrained time-frequency electromagnetic method: Progress in Geophysics, 31(6), 2351–2826.Google Scholar
- Sun, Z. H., Fu, J. L, Yang, S. J, et al., 2012, TFEM applications in the Block A, Niger: Oil Geophysical Prospecting, 47, 147–151.Google Scholar
- Zhang, C. H., Liu, X. J., He, L. F., et al., 2013, A study of exploration organic rich shales using Time-Frequency Electromagnetic method (TFEM): Chinese Journal of Geophysics, 56(9), 3173–3183.Google Scholar
- Zhang, C. H., Liu, X. J., Zhou, H., et al., 2015, A step forward study for the exploration of organic-rich electromagnetic method (TFEM): Geophysical Prospecting for Petroleum, 54(5), 627–634.Google Scholar
- Zhao, G. Z., Chen, X., Tnag, J., 2007, Advanced geo-electromagnetic methods in China: Progress in Geophysics: 22(4), 1171–1180.Google Scholar
- Zhao, Y. D., He, Z. X., Zheng, Q. G., et al., 2014, Favorable oil and gas target prediction with time frequency electromagnetic method in T Basin: Oil Geophysical Prospecting, 49(1), 228–232.Google Scholar
- Zhou, Y. M., Liu, X. J., Zhang, C. H., et al., 2015, The TFEM technology for quick identification of ‘sweet spot’ of gas and its applications: Geophysical and Geochemical Exploration, 39(1), 60–63.Google Scholar