IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i9p2679-d549949.html
   My bibliography  Save this article

Coupling between Source Rock and Reservoir of Shale Gas in Wufeng-Longmaxi Formation in Sichuan Basin, South China

Author

Listed:
  • Yuying Zhang

    (Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China
    Key Laboratory of Theory and Technology of Petroleum Exploration and Development in Hubei Province, Wuhan 430074, China
    School of Earth Resources, China University of Geosciences, Wuhan 430074, China)

  • Shu Jiang

    (Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China
    Key Laboratory of Theory and Technology of Petroleum Exploration and Development in Hubei Province, Wuhan 430074, China
    School of Earth Resources, China University of Geosciences, Wuhan 430074, China)

  • Zhiliang He

    (State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China)

  • Yuchao Li

    (Liaoning Geological and Mineral Survey Institute Co. LTD., Shenyang 110032, China)

  • Dianshi Xiao

    (School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China)

  • Guohui Chen

    (Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China
    Key Laboratory of Theory and Technology of Petroleum Exploration and Development in Hubei Province, Wuhan 430074, China
    School of Earth Resources, China University of Geosciences, Wuhan 430074, China)

  • Jianhua Zhao

    (School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China)

Abstract

In order to analyze the main factors controlling shale gas accumulation and to predict the potential zone for shale gas exploration, the heterogeneous characteristics of the source rock and reservoir of the Wufeng-Longmaxi Formation in Sichuan Basin were discussed in detail, based on the data of petrology, sedimentology, reservoir physical properties and gas content. On this basis, the effect of coupling between source rock and reservoir on shale gas generation and reservation has been analyzed. The Wufeng-Longmaxi Formation black shale in the Sichuan Basin has been divided into 5 types of lithofacies, i.e., carbonaceous siliceous shale, carbonaceous argillaceous shale, composite shale, silty shale, and argillaceous shale, and 4 types of sedimentary microfacies, i.e., carbonaceous siliceous deep shelf, carbonaceous argillaceous deep shelf, silty argillaceous shallow shelf, and argillaceous shallow shelf. The total organic carbon (TOC) content ranged from 0.5% to 6.0% (mean 2.54%), which gradually decreased vertically from the bottom to the top and was controlled by the oxygen content of the bottom water. Most of the organic matter was sapropel in a high-over thermal maturity. The shale reservoir of Wufeng-Longmaxi Formation was characterized by low porosity and low permeability. Pore types were mainly <10 nm organic pores, especially in the lower member of the Longmaxi Formation. The size of organic pores increased sharply in the upper member of the Longmaxi Formation. The volumes of methane adsorption were between 1.431 m 3 /t and 3.719 m 3 /t, and the total gas contents were between 0.44 m 3 /t and 5.19 m 3 /t, both of which gradually decreased from the bottom upwards. Shale with a high TOC content in the carbonaceous siliceous/argillaceous deep shelf is considered to have significant potential for hydrocarbon generation and storage capacity for gas preservation, providing favorable conditions of the source rock and reservoir for shale gas.

Suggested Citation

  • Yuying Zhang & Shu Jiang & Zhiliang He & Yuchao Li & Dianshi Xiao & Guohui Chen & Jianhua Zhao, 2021. "Coupling between Source Rock and Reservoir of Shale Gas in Wufeng-Longmaxi Formation in Sichuan Basin, South China," Energies, MDPI, vol. 14(9), pages 1-16, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2679-:d:549949
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/9/2679/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/9/2679/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Yangbo Lu & Feng Yang & Ting’an Bai & Bing Han & Yongchao Lu & Han Gao, 2022. "Shale Oil Occurrence Mechanisms: A Comprehensive Review of the Occurrence State, Occurrence Space, and Movability of Shale Oil," Energies, MDPI, vol. 15(24), pages 1-16, December.
    2. Xiaoyan Zou & Xianqing Li & Jizhen Zhang & Huantong Li & Man Guo & Pei Zhao, 2021. "Characteristics of Pore Structure and Gas Content of the Lower Paleozoic Shale from the Upper Yangtze Plate, South China," Energies, MDPI, vol. 14(22), pages 1-29, November.
    3. Xuewen Shi & Wei Wu & Yuguang Shi & Zhenxue Jiang & Lianbo Zeng & Shijie Ma & Xindi Shao & Xianglu Tang & Majia Zheng, 2022. "Influence of Multi-Period Tectonic Movement and Faults on Shale Gas Enrichment in Luzhou Area of Sichuan Basin, China," Energies, MDPI, vol. 15(18), pages 1-25, September.
    4. Golam Muktadir & Moh’d Amro & Nicolai Kummer & Carsten Freese & Khizar Abid, 2021. "Application of X-ray Diffraction (XRD) and Rock–Eval Analysis for the Evaluation of Middle Eastern Petroleum Source Rock," Energies, MDPI, vol. 14(20), pages 1-16, October.
    5. Bing Feng & Jiliang Yu & Feng Yang & Zhiyao Zhang & Shang Xu, 2023. "Reservoir Characteristics of Normally Pressured Shales from the Periphery of Sichuan Basin: Insights into the Pore Development Mechanism," Energies, MDPI, vol. 16(5), pages 1-14, February.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2679-:d:549949. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.