«Onshore and offshore oil and gas well construction»

Influence of the value of the mineralization of the dispersion medium on the swelling of mudstones

UDC: 622.24.062+622.24.063
DOI: 10.33285/0130-3872-2021-11(347)-26-28

Authors:

¹ Samara State Technical University, Samara, Russian Federation

Keywords: device for measuring linear swelling of clays; method for preparing samples for measuring swelling; the amount of swelling of mudstones; dispersion medium of different mineralization; duration of mudstones swelling

Annotation:

The paper presents the results of sludge hydration of the Pokrovsko-Sorochinskoye field, withdrawn during drilling in the interval of 3429–3455 m. The study was carried out by measuring the linear dimensions of the reconstructed core after immersion in the studied media. The paper analyzes the effect of the aquatic environment mineralization on the value of the argillite samples welling. Comparison of swelling of samples from mudstone and bentonite reveals the mechanism of filtrate penetration into the rocks.

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