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Browsing by Subject "hydration"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Polyglycol mud for drilling in clay and shales
    (2011) Gąszcz, Krzysztof; Suchar, Mariusz; Wysocki, Sławomir
    Drilling a wellbore in formations containing water-sensitive shales can cause many serious technical problems. Especially mud which enable safe drilling in shales and clays formations must be characterized not only by features of standard modern mud, but also has to reduce water adsorption and thus hydration of clays and shales. This paper was prepared so as to present the results of laboratory investigation in which a glycol and ion - polymer fluid based on potassium salt was made. Obtained mud is characterized by high-temperature resistance, good rheological properties, low water loss and resistance to salt ions.