The Priobskoye field is currently one of the largest unconventional reservoirs in the West Siberia. That field is characterized by low permeability and complex reservoir structure. In order to increase the recovery factor and raise the level of oil production in the Priobskoye tight formation the amount of wellworks constantly increases. Reservoir fracturing is the main of the variety of different wellworks is applied in this oilfield. The first operation of hydraulic fracturing at the Priobskoe field was made in 1992. RN-Yuganskneftegas LLC is one of the leaders in the field of hydraulic fracturing. Petroleum engineers, who develop this oil reservoir, have a great practical experience in reservoir fracturing. Nowadays formation fracturing is used in all well completing operations at the Priobskoye field.
This article represents the main stages of evolution of hydraulic fracturing technology at the Priobskoye field. Historical data of the number of performed well operation of hydraulic fracturing at the Priobskoye field are presented. The relation between a volume of injection proppant and performance wells (vertical, horizontal) after hydraulic fracturing was discovered and the analysis of refracturing treatment effectiveness was made additionally. The ideas for further optimization of hydraulic fracturing technologies and development of digital hydraulic fracturing modeling are presented.
References
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