Effect of Mineralogy and Petrophysical Characteristics on Acoustic and Mechanical Properties of Organic Rich Shale

Abstract

PreviousNext No AccessUnconventional Resources Technology Conference, Denver, Colorado, 12-14 August 2013Effect of Mineralogy and Petrophysical Characteristics on Acoustic and Mechanical Properties of Organic Rich ShaleAuthors: Adel A. AlqahtaniMehdi MokhtariAzra N. TutuncuSteve SonnenbergAdel A. AlqahtaniColorado School of MinesSearch for more papers by this author, Mehdi MokhtariColorado School of MinesSearch for more papers by this author, Azra N. TutuncuColorado School of MinesSearch for more papers by this author, and Steve SonnenbergColorado School of MinesSearch for more papers by this authorhttps://doi.org/10.1190/urtec2013-045 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract URTeC 1619144 Although petroleum industry has obtained a good practice in unlocking the shale reservoirs, more comprehensive geomechanical experimental and modeling research is required to optimize the drilling, completion and hydraulic fracturing processes due to the significant heterogeneity and anisotropy of shale formations. Acoustic and mechanical properties strongly depend on several factors including the mineralogy, density and distribution of natural fractures, bedding plane orientation, total organic carbon (TOC), maturity and in-situ stress state and pore pressure which are significantly different in various shale reservoirs and even within a shale basin. The strong anisotropy of acoustic and mechanical properties has a major impact on the reservoir characterization and field development plan. In this paper, we present the results of an experimental study on several U.S. shale basins with different maturity including Eagle Ford, Green River and Mancos shales to provide more insight on the shale acoustic and mechanical properties. We discuss the effect of shale bedding plane orientation and emphasize on the impact of shale mineralogy and petrophysical characteristics on the acoustic and mechanical properties. The mineralogy and petrophysical properties of each shale sample have been examined. Using both ultrasonic and mechanical methods, dynamic and static Young Modulus and Poisson's Ratio have been obtained at different bedding plane angles. A relationship between dynamic and static moduli has been consequently developed to determine in situ static moduli directly from seismic or well log data obtained in the same field. Keywords: acoustic, fractures, reservoir characterization, anisotropy, heterogeneousPermalink: https://doi.org/10.1190/urtec2013-045FiguresReferencesRelatedDetailsCited byImpact of Supercritical CO 2 on Shale Reservoirs and Its Implication for CO 2 Sequestration23 August 2022 | Energy & Fuels, Vol. 36, No. 17Shale Mechanical Properties Influence Factors Overview and Experimental Investigation on Water Content Effects10 December 2021An Innovative Methodology for Estimating Rock Mechanical Properties from Weight or Volume Fractions of Mineralogy and its Application to Middle East Reservoirs15 December 2021An experimental study to investigate the physical and dynamic elastic properties of Eagle Ford shale rock samples26 July 2021 | Journal of Petroleum Exploration and Production Technology, Vol. 11, No. 9Tensile and Shear Mechanical Characteristics of Longmaxi Shale Laminae Dependent on the Mineral Composition and Morphology10 June 2020 | Energies, Vol. 13, No. 11A laboratory study of the porosity-permeability relationships of shale and sandstone under effective stressInternational Journal of Rock Mechanics and Mining Sciences, Vol. 81Water Content Effects on Dynamic Elastic Properties of Organic-rich Shale28 September 2015Evaluation of Petrophysical and Mechanical Features for Shale Gas Reservoirs in South Sichuan Basin, China1 June 2015Required Understanding for the Development of Shale Reservoirs in the Middle East in Light of Developments in North America26 January 2015Quantification of Total Organic Carbon Content in Shale Source Rocks: An Eagle Ford Case StudyA.A. 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Tutuncu, and Xiaolong Yin26 September 2013 Unconventional Resources Technology Conference, Denver, Colorado, 12-14 August 2013ISSN (online):2159-6832Copyright: 2013 Pages: 1229 publication data© 2013 Published in electronic format with permission by the Society of Exploration Geophysicists, American Association of Petroleum Geologists, and Society of Petroleum EngineersPublisher:Unconventional Resources Technology ConferenceSociety of Exploration Geophysicists HistoryPublished Online: 26 Sep 2013 CITATION INFORMATION Adel A. Alqahtani, Mehdi Mokhtari, Azra N. Tutuncu, and Steve Sonnenberg, (2013), "Effect of Mineralogy and Petrophysical Characteristics on Acoustic and Mechanical Properties of Organic Rich Shale," SEG Global Meeting Abstracts : 399-411. https://doi.org/10.1190/urtec2013-045 Plain-Language Summary Keywordsacousticfracturesreservoir characterizationanisotropyheterogeneousPDF DownloadLoading ...