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Effective Exploitation Potential of Shale Gas from Lower Cambrian Niutitang Formation, Northwestern Hunan, China

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  • Han Cao

    (Schools of Geosciences and Info-Physics, Central South University, Changsha 410083, China
    Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Ministry of Education), Central South University, Changsha 410083, China
    Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China)

  • Tianyi Wang

    (Schools of Geosciences and Info-Physics, Central South University, Changsha 410083, China
    Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Ministry of Education), Central South University, Changsha 410083, China)

  • Ting Bao

    (Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Ministry of Education), Central South University, Changsha 410083, China
    Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA)

  • Pinghe Sun

    (Schools of Geosciences and Info-Physics, Central South University, Changsha 410083, China
    Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Ministry of Education), Central South University, Changsha 410083, China
    Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China)

  • Zheng Zhang

    (Schools of Geosciences and Info-Physics, Central South University, Changsha 410083, China
    Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Ministry of Education), Central South University, Changsha 410083, China)

  • Jingjing Wu

    (College of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China)

Abstract

The marine shale in the Lower Cambrian Niutitang Formation is the dominant shale-gas reservoir in northwestern Hunan, which accounts for more than 70% of unconventional energy in Hunan province. Accurately evaluating the shale-gas exploitation potential is a key to determining whether commercial exploitation standards can be met. In the literature, most existing studies have focused on evaluating the shale-gas exploitation potential based on either accumulation conditions or the shale fracability, which will lead to a gap between the real production and proven gas reserves due to the characteristics of the shale’s low permeability and low porosity. Therefore, further studies are needed to evaluate the effective shale-gas exploitation potential. To address this need, the outcrop shale samples in the Niutitang Formation were collected from the target regions, and the geological characteristics, mechanics behavior, and microstructure performance were discussed via both field data and laboratory tests. The results revealed that the shale-gas exploitation potential in the Niutitang Formation was indicated to be comparable to that of five validated shale-gas exploitation regions in the United States. To further illustrate the effective shale-gas exploitation potential, this study suggested using a comprehensive evaluation framework for this purpose, in which both accumulation condition and the shale fracability are simultaneously considered. Therefore, the shale gas reservoir in the Niutitang Formation has highly effective shale-gas exploitation potential by considering both the accumulation conditions and the shale fracability.

Suggested Citation

  • Han Cao & Tianyi Wang & Ting Bao & Pinghe Sun & Zheng Zhang & Jingjing Wu, 2018. "Effective Exploitation Potential of Shale Gas from Lower Cambrian Niutitang Formation, Northwestern Hunan, China," Energies, MDPI, vol. 11(12), pages 1-18, December.
  • Handle: RePEc:gam:jeners:v:11:y:2018:i:12:p:3373-:d:187193
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    References listed on IDEAS

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    1. Jia Liu & Jianguo Wang & Chunfai Leung & Feng Gao, 2018. "A Multi-Parameter Optimization Model for the Evaluation of Shale Gas Recovery Enhancement," Energies, MDPI, vol. 11(3), pages 1-29, March.
    2. Yuwei Li & Lihua Zuo & Wei Yu & Youguang Chen, 2018. "A Fully Three Dimensional Semianalytical Model for Shale Gas Reservoirs with Hydraulic Fractures," Energies, MDPI, vol. 11(2), pages 1-19, February.
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    Cited by:

    1. Wenrui Shi & Xingzhi Wang & Yuanhui Shi & Aiguo Feng & Yu Zou & Steven Young, 2019. "Application of Dipole Array Acoustic Logging in the Evaluation of Shale Gas Reservoirs," Energies, MDPI, vol. 12(20), pages 1-17, October.
    2. Pinghe Sun & Junyi Zhu & Binkui Zhao & Xinxin Zhang & Han Cao & Mingjin Tian & Meng Han & Weisheng Liu, 2019. "Study on the Mechanism of Ionic Stabilizers on Shale Gas Reservoir Mechanics in Northwestern Hunan," Energies, MDPI, vol. 12(12), pages 1-11, June.
    3. Pengcheng Wu & Chentao Li & Zhen Zhang & Jingwei Yang & Yanzhe Gao & Xianbing Wang & Xiumei Wan & Chengyu Xia & Qunying Guo, 2023. "Research on Cuttings Carrying Principle of New Aluminum Alloy Drill Pipe and Numerical Simulation Analysis," Energies, MDPI, vol. 16(15), pages 1-17, July.
    4. Han Cao & Zheng Zhang & Ting Bao & Pinghe Sun & Tianyi Wang & Qiang Gao, 2019. "Experimental Investigation of the Effects of Drilling Fluid Activity on the Hydration Behavior of Shale Reservoirs in Northwestern Hunan, China," Energies, MDPI, vol. 12(16), pages 1-12, August.

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