Effect of fluid-solid friction on the stiffness of chalk

Mohammad Monzurul Alam, Hosea Nguh Akam, Ida Lykke Fabricius

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    Abstract

    Chalks behave weaker at water saturated condition. We studied this softening effect as a function of Biot’s frequency ratio, which is a ratio between measured ultrasonic wave frequency and Biot critical frequency, fc. Kinematic viscosity of fluid and permeability of rock determines fc. We observed that rocks saturated with higher kinematic viscosity fluid are stiffer.
    Original languageEnglish
    Title of host publicationProceedings of the 1st International Workshop on Rock Physics
    Publication date2011
    Publication statusPublished - 2011
    Event1st International Workshop on Rock Physics - Denver, Colorado, United States
    Duration: 7 Aug 201112 Aug 2011
    Conference number: 1
    http://1iwrp.rockphysicists.org/

    Conference

    Conference1st International Workshop on Rock Physics
    Number1
    Country/TerritoryUnited States
    CityDenver, Colorado
    Period07/08/201112/08/2011
    Internet address

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