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ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Geoscience and Society
Volume 12 - 2024 | doi: 10.3389/feart.2024.1503646
This article is part of the Research Topic Exploration, Development, and Protection of Earth’s Resources and Environment: Methods, Techniques, Applications, Prospects, Insights, and Problems View all 27 articles

Analysis of genetic sandbodies and coal seams with coal-bearing of Middlelower Jurassic in Junggar Basin

Provisionally accepted
Yao Zongquan Yao Zongquan 1*Wang wei Wang wei 1Wang Yong Wang Yong 2Xie Zongrui Xie Zongrui 3Yang Xingtao Yang Xingtao 3Yang Fan Yang Fan 4Zhou Qihao Zhou Qihao 5
  • 1 Xinjiang University, Urumqi, China
  • 2 Research Institute of Petroleum Exploration and Development, SINOPEC Shengli Oilfield Company, Dongying, Shandong, China
  • 3 Xinjiang Oilfield Company, Karamay, Xinjiang Uyghur Region, China
  • 4 Research Institute of Petroleum Exploration and Development (RIPED), Beijing, Beijing Municipality, China
  • 5 The University of Utah, Salt Lake City, Utah, United States

The final, formatted version of the article will be published soon.

    The sediment genetic mechanisms have always been are important branch of the “source-sink” system, and it is also a research hotpot. Conglomerate, sandstone and coal are developed of Middle-lower Jurassic in Junggar Basin, the genetic mechanism is not clear, which restricts the further exploration of oil field. Based on the core carefully, test data, and outcrop sections, Badaowan and Xishanyao Formation are analyzed. Five types of conglomerate lithofacies and sandstone lithofacies, two kinds of mudstone lithofacies and one type of coal are identified. Based on the structure-genetic, the debris flow and traction current with conglomerate are developed, and a method of the semi-quantitative identifying index is proposed based on the sedimentary sequence of lithological characteristics, MPS/BTh, and grain size characteristics as the identification criteria. Depend on fluvio-delta, the genetic bodies of the distribution channel, subaqueous distribution channel, mouth bar, briaded channel, overbank sandstone are divided. By integrating sturctural, paleo-climate and sedimentary environment, the coal in Badaowan Formation has the characteristics of continuous and stable distribution of thick layers, while multiple sets of discontinuous and instable distribution in Xishanyao Formaiton. Finally, the filling model is established, and the superposition and distribution of sandbodies are clarified.

    Keywords: Lithofacies, sediment genetic, Coal-bearing, Middle-Lower Jurassic, Hongshanzui area, Junggar

    Received: 29 Sep 2024; Accepted: 11 Nov 2024.

    Copyright: © 2024 Zongquan, wei, Yong, Zongrui, Xingtao, Fan and Qihao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Yao Zongquan, Xinjiang University, Urumqi, China

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