Laboratory studies on the use of surfactant compositions to solve resource extraction problems

Abstract

Based on studies on the interaction and heat resistance of some heat-resistant polymer additives at 128 °C, a sulfonated polyacrylamide polymer AN-125 is proposed as an additive for improving the viscosity of a surfactant composition. The results of experimental studies of a new surfactant composite prepared based on a mixture of ethoxylated and propoxylated sulfate, α-olefin sulfonate and alkylphenol ethoxylate with a concentration of 500 ppm and additives to improve the viscosity in the reservoir model from the deposit basement samples showed that the surface tension at the oil-solution boundary before the exposure to temperature is 0.19 mN/m, and after exposure to temperature 91 °C – 0.21 mN/m. The experimental studies of water and surfactant compositions injection on 5 prefabricated models composed of core samples of basement rocks covering a wide range of reservoir properties showed that the injection of the oil rim with compositions based on the mixture of ethoxylated and propoxylated sulfate, α-olefin sulfonate and alkylphenol ethoxylate with a concentration of 800 ppm and an additive of polymerasulfonated polyacylate increases the oil displacement ratio.

Determination of the coefficient of hydraulic friction and factors reducing the value of hydraulic resistance along the length

“…The main economic and energy costs during transportation are associated with the operation of pumps and compressors. Therefore, the conducted studies [15] are relevant, the purpose of which was to determine hydraulic losses during the movement of paraffin oil in the pipeline and to identify the influence of temperature on losses. As a result of the study, it was concluded that the hydraulic pressure losses in the oil pipeline depend on the temperature and speed of the pumped liquid.…”