Sedimentary microfacies and depositional model of fine-grained rocks in the middle Ordos Basin

Feng Guo; Qi Pan; Qilin Zhao; Xiaoyi Chen; Qiang Xu; Shuoyang Huang; Ikram Aike

doi:10.1117/12.2668298

23 February 2023 Sedimentary microfacies and depositional model of fine-grained rocks in the middle Ordos Basin

Feng Guo, Qi Pan, Qilin Zhao, Xiaoyi Chen, Qiang Xu, Shuoyang Huang, Ikram Aike

Proceedings Volume 12551, Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022); 125511P (2023) https://doi.org/10.1117/12.2668298
Event: Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022), 2022, Changchun, China

Abstract

Detailed sedimentary microfacies research is important to determine favorable target areas for oil and gas exploration. In order to clarify the sedimentary microfacies characteristics of Chang 7 in the Ordos Basin, the types and distribution of Chang 7 sedimentary microfacies were studied using logging, core, analysis and testing data. The results show that delta facies is developed in the Chang 7, mainly in the delta front subfacies, including distributary channel, natural levee, interdistributary bay and mouth bar. The underwater distributary channel sand body, as the skeleton sand body, is relatively well developed and is the main place for oil and gas accumulation. The thick fine sediments in Chang 7 sedimentary period are mainly mudstone and silty mudstone. Multi channel sand bodies and extremely thick fine-grained rocks form a high-quality source reservoir cap rock association.

Citation Download Citation

Feng Guo, Qi Pan, Qilin Zhao, Xiaoyi Chen, Qiang Xu, Shuoyang Huang, and Ikram Aike "Sedimentary microfacies and depositional model of fine-grained rocks in the middle Ordos Basin", Proc. SPIE 12551, Fourth International Conference on Geoscience and Remote Sensing Mapping (GRSM 2022), 125511P (23 February 2023); https://doi.org/10.1117/12.2668298

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