IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i11p2995-d559820.html
   My bibliography  Save this article

Anisotropy of Strength and Elastic Properties of Lower Paleozoic Shales from the Baltic Basin, Poland

Author

Listed:
  • Przemyslaw Michal Wilczynski

    (Faculty of Geology, University of Warsaw, Zwirki i Wigury 93 Str., 02-089 Warszawa, Poland)

  • Andrzej Domonik

    (Faculty of Geology, University of Warsaw, Zwirki i Wigury 93 Str., 02-089 Warszawa, Poland)

  • Pawel Lukaszewski

    (Faculty of Geology, University of Warsaw, Zwirki i Wigury 93 Str., 02-089 Warszawa, Poland)

Abstract

The paper presents the results of laboratory studies on the strength–strain properties of shales representing four siltstone-claystone lithostratigraphic units occurring in the Baltic Basin. Laboratory studies in a triaxial stress state were conducted as single failure tests on cylindrical samples oriented parallel and perpendicular to lamination within the rocks. Mutually perpendicular samples were cut out from the same drill core sections in order to determine mechanical anisotropy. Samples oriented parallel to lamination were characterised by values of the static Young’s modulus twice as high as from samples oriented perpendicular to lamination. Similar variability was observed in the case of maximum differential stress values and Poisson’s ratio. Samples parallel to lamination registered notably lower axial strains, which influenced increased values of Young’s modulus and Poisson’s ratio. The rocks studied are characterised by VTI type (vertical transverse isotropy) internal anisotropy of the rock matrix, which significantly influences the anisotropy of their geomechanical properties.

Suggested Citation

  • Przemyslaw Michal Wilczynski & Andrzej Domonik & Pawel Lukaszewski, 2021. "Anisotropy of Strength and Elastic Properties of Lower Paleozoic Shales from the Baltic Basin, Poland," Energies, MDPI, vol. 14(11), pages 1-17, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:2995-:d:559820
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/11/2995/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/11/2995/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Hadi Parvizi & Sina Rezaei Gomari & Farhad Nabhani & Abolfazl Dehghan Monfared, 2018. "Modeling the Risk of Commercial Failure for Hydraulic Fracturing Projects Due to Reservoir Heterogeneity," Energies, MDPI, vol. 11(1), pages 1-14, January.
    2. Hong Xue Han & Shunde Yin, 2018. "Determination of In-Situ Stress and Geomechanical Properties from Borehole Deformation," Energies, MDPI, vol. 11(1), pages 1-13, January.
    3. Klaudia Wilk, 2019. "Experimental and Simulation Studies of Energized Fracturing Fluid Efficiency in Tight Gas Formations," Energies, MDPI, vol. 12(23), pages 1-17, November.
    Full references (including those not matched with items on IDEAS)

    Citations

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


    Cited by:

    1. Małgorzata Słota-Valim & Anita Lis-Śledziona, 2021. "The Use of Well-Log Data in the Geomechanical Characterization of Middle Cambrian Tight Sandstone Formation: A Case Study from Eastern Pomerania, Poland," Energies, MDPI, vol. 14(19), pages 1-25, September.
    2. Przemyslaw Michal Wilczynski & Andrzej Domonik & Pawel Lukaszewski, 2021. "Brittle Creep and Viscoelastic Creep in Lower Palaeozoic Shales from the Baltic Basin, Poland," Energies, MDPI, vol. 14(15), pages 1-22, July.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Hua Zhang & Shunde Yin & Bernt S. Aadnoy, 2019. "Numerical Investigation of the Impacts of Borehole Breakouts on Breakdown Pressure," Energies, MDPI, vol. 12(5), pages 1-23, March.
    2. Wei Meng & Chuan He, 2020. "Back Analysis of the Initial Geo-Stress Field of Rock Masses in High Geo-Temperature and High Geo-Stress," Energies, MDPI, vol. 13(2), pages 1-20, January.
    3. Guangchao Zhang & You Li & Xiangjun Meng & Guangzhe Tao & Lei Wang & Hanqing Guo & Chuanqi Zhu & Hao Zuo & Zhi Qu, 2022. "Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area," Energies, MDPI, vol. 15(4), pages 1-17, February.
    4. Klaudia Wilk-Zajdel & Piotr Kasza & Mateusz Masłowski, 2021. "Laboratory Testing of Fracture Conductivity Damage by Foam-Based Fracturing Fluids in Low Permeability Tight Gas Formations," Energies, MDPI, vol. 14(6), pages 1-17, March.
    5. Yutong Chai & Zhuoheng Chen & Shunde Yin, 2023. "A Preliminary Analysis of In-Situ Stress at Mount Meager by Displacement Discontinuity Method with Topography and Tectonics Considered," Energies, MDPI, vol. 16(3), pages 1-25, January.
    6. Abdulaziz Ellafi & Hadi Jabbari, 2021. "Unconventional Well Test Analysis for Assessing Individual Fracture Stages through Post-Treatment Pressure Falloffs: Case Study," Energies, MDPI, vol. 14(20), pages 1-25, October.
    7. Muhammad Shahzad Kamal & Marwan Mohammed & Mohamed Mahmoud & Salaheldin Elkatatny, 2018. "Development of Chelating Agent-Based Polymeric Gel System for Hydraulic Fracturing," Energies, MDPI, vol. 11(7), pages 1-15, June.

    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:11:p:2995-:d:559820. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.