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Browsing by Subject "chalk"

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    Item type:Article, Access status: Open Access ,
    Badania możliwości zastąpienia barytu kredą w obciążonej płuczce poliglikolowej z polimerem PT-51 do przewiercania skał ilastych
    (2010) Kopeć, Paweł; Wysocki, Sławomir
    The right weighting of drilling mud is very important for drilling to balance well pressure and exert back pressure to the walls. In instance to wrong match of drilling mud, there is a crawling rocks effect. In order to prevent this effect, drilling mud with high density are use. Materials which we use to weighting should be a chemical inertness to other components of mud and don't change of technological parameters. Because of high consumption it also should be easily accessible and cheap. In this work we research for replacement barite by chalk in weighted polyglycol drilling mud to reboring clays and shales. Research show that using a chalk and barite on prepared mud successfully weight it to density of 1.5 g/cm3 without significant influence of rheological parameters. Chalk influence similarly like barite at technological parameters and have lower abrasiveness and it's cheaper than barite.