The growing need to increase production of natural hydrocarbons makes hydraulic fracturing technology one of the key methods of production stimulation, so the need to improve the efficiency and cost-effectiveness of hydraulic fracturing, which can be achieved by optimising the fluid composition, is becoming an urgent issue. The aim of the study was to find effective formulations of hydraulic fracturing fluid that would have the structural and rheological properties necessary for successful hydraulic fracturing in wells with temperatures above 80°C. An empirical method of conducting laboratory studies of hydraulic fracturing fluid formulations is used. To substantiate the rheological properties of hydraulic fracturing fluids, they were tested. This method involved systematic testing of various combinations of fluid components to select the optimal composition that would meet the requirements of efficient and economical fracturing at elevated well temperatures. The main types of fracturing fluids and their formulations are analysed, and the results of laboratory studies on the selection of optimal parameters of fracturing fluid in a well with a formation temperature of 85°C are presented. The relationship between the chemical composition (formulation) of the fracturing fluid and its rheological properties at a temperature of 85°C is experimentally established. Using the method of formulation selection, the composition of the fracturing fluid was found that can withstand landslide pressures, is stable and does not collapse prematurely. The article proposes a formulation of a fluid that can be used during hydraulic fracturing in gas and oil fields. Practical implementation of the research results will improve the efficiency of hydraulic fracturing technology and increase the productivity of oil and gas wells
Received 14.12.2023
Revised 08.04.2024
Accepted 31.05.2024
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