Assessment of the Possibility of Using Industrial Hyperbranched Polymers as Reagents for Increasing the Capacity of Pipelines When Pumping Non-conventional Hydrocarbon

Pipeline transportation of oil media is one of the most energy-intensive operations in the process of hydrocarbon development, and technological operations aimed at resource and energy saving in pipeline pumping processes have a significant impact on the technical and economic indicators of projects. The article presents the results of a laboratory evaluation of Boltorn industrial hyperbranched polymers for the possibility of increasing the throughput of an oil system of unconventional reserves and reducing the hydraulic resistance of the pipeline system during its pumping. As part of the research, 4 reagents were studied - Boltorn H311, Boltorn W3000, Boltorn P500, Boltorn H2004. Industrial additives differ in their chemical structure and molecular weight. The compositions of Boltorn industrial hyperbranched polymers were preliminarily studied on a model medium - diesel fuel for primary selection. Preliminary studies made it possible to select two reagents for further research - Boltorn H311 and Boltorn W3000, which were studied on a mixture of crude oil emulsion with diesel fuel with a final kinematic viscosity of 47mm2/s at a temperature of 25°C. The maximum efficiency of Boltorn W3000 on an oil emulsion was 13.6% at a concentration of 200 ppm, for the Boltorn H311 composition on an oil emulsion - 12.7% at a concentration of 150 ppm. An additional measure of the effectiveness of throughput-increasing reagents is the assessment of the reagent's resistance to mechanical destruction. For example, for the Boltorn W3000 additive at a concentration of 200 ppm, the effectiveness of reducing hydraulic resistance was more than 800 circulation cycles, which confirms its long-term effectiveness with sequential pipeline pumping.