Study on Trachyte Prediction Methods in the Oulitouzi Area

doi:10.11885/j.issn.1674-5086.2016.06.29.04

Abstract

Abstract: Research on trachyte distribution prediction methods can provide a basis for the exploration and exploitation of trachyte gas and oil reservoirs. Trachyte predictions were made based on the analysis of its geophysical response characteristics using multi-parameter lithology inversion combined with a wave impedance inversion technique. The results of well logging showed that the trachyte in this area is characterized by low-time lag, high-density, and high natural gamma logging response characteristics, which can be used to distinguish trachyte from the surrounding lithology. The combination of the multiparameter lithology with longitudinal wave impedance inversion technology allows the prediction of the distribution of trachyte rock mass. The inversion results showing that the natural gamma and wave impedance exceed 95 API and 1.0×10⁷ kg/(m²·s), respectively, confirm that a tracheae development area exists. The reliability of the prediction results was confirmed through drilling.

Key words: Liaohe Depression, Oulitouzi, trachyte, multi-parameter lithology inversion, wave impedance inversion

CLC Number:

TE122

DONG Wenbo. Study on Trachyte Prediction Methods in the Oulitouzi Area[J]. 西南石油大学学报(自然科学版), 2017, 39(6): 19-24.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2016.06.29.04

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