RUE Belorusneft Production Association adopted a modernization strategy for 2011–2016 aimed at improving current technological approaches to hydraulic fracturing and acid hydraulic fracturing operations planning and support, introduction and further wider application of new technical and technological solutions at the carbonate and terrigenous reservoirs of the fields of the Republic of Belarus.

One the principal thrusts in this field is nitrogen and foam fracturing aimed at reduction of residual contamination of the formation with polymers, reduction of breakdown agent filtration coefficient across the reservoir and limitation of the prevailing crack growth height. These advantages of nitrogen and foam fracturing as compared to classical fracturing including water gel, seem to be quite relevant for the carbonate and terrigenous deposits of the Republic of Belarus.

Two such operations were performed in 2012–2013 period: at 86 Daydovsky Well (January, 2012) and 133 Vishansky Well (January, 2013). The application of nitrogen and foam fracturing at 86 Daydovsky Well did not bring any substantial results, as compared to the traditional technology, except for obvious reduction in residual contamination of the formation with polymers. As far as 133 Vishansky Well is concerned, the nitrogen and foam fracturing was meant to constrain the vertical crack growth and minimize the possibility of watercut products. After well completion in 2003 the well operated with 10% watercut rate. After the operation, the daily debit rate increased by 3.5 times. The watercut rate ranged 0–10%. Meanwhile the neighboring wells, where fracturing was made according to the classic technology, demonstrated weaker performance.

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