A novel laboratory method for reliable water content determination of shale reservoir rocks

Ekaterina S. Kazak, Andrey V. Kazak

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    21 Citations (Scopus)

    Abstract

    The paper presents a novel laboratory evaporation method (EM) of the water saturation measurement of the shale reservoir rock samples with initial water content down to below 1 wt%. The EM offers fast, efficient, and accurate measurements of the total water content, free and loosely clay-bound water. The method is characterized in terms of its operating domain and relative measurement error. The research results show that a good quality data set requires the use of fresh samples with a maximum preserved initial water saturation, fragmented into pieces with specific dimensions of a few centimetres. A comprehensive comparison between the EM and the Dean-Stark method conducted on low-permeable shale rocks of the Bazhenov formation clearly shows EM's advantages regarding accuracy and turn-around time.

    Original languageEnglish
    Article number106301
    JournalJournal of Petroleum Science and Engineering
    Volume183
    DOIs
    Publication statusPublished - Dec 2019

    Keywords

    • Bazhenov
    • Core analysis
    • Dean-Stark
    • Evaporation Method
    • Initial water content
    • Petrophysics
    • Retort method
    • Shale
    • Unconventional reservoir

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