In JSC Samaraneftegaz, in recent years, there has been a steady trend towards a reduction in the proportion of proppant fracturing and an increase in the proportion of acid stimulation. After analyzing the previously performed hydraulic fracturing works on the carbonate reservoirs of Samaraneftegaz JSC, as well as world experience, it can be assumed that an increase in the duration of the effect of hydraulic fracturing in carbonate reservoirs can be achieved through a combination of acid fracturing with the use of a proppant (proppant) , where a crosslinked acid gel can serve as the main sand-carrying fluid. However, due to the difference in the geological conditions of carbonate reservoirs, on which the experience of using acid gel as the main sand-carrying agent was considered, the feasibility of using proppant fracturing technology on a cross-linked acid gel requires a set of studies.

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