GAZPROM NEFT: HIGH-TEMPERATURE FRACKING IN SERBIA
(Gazpron Neft, St Petersburg) Gazprom Neft, supported by specialists at its research and development centres has undertaken a series of hydraulic fracturing operations in high-temperature horizons at the Kikinda Istok, Crna Bara jug and Vojvoda Stepa fields in northern Serbia. Fulfilment of these operations saw the company utilising a new special gel, making possible hydraulic fracking of the deposit at temperatures of 150°? to 180°?. The special gel used in Serbia has sufficient viscosity to retain heavy proppant particles during injection into the strata, and can withstand reservoir conditions.