AGENT, DECREASING HYDRODYNAMIC RESISTANCE, FOR APPLICATION WHEN WATER SUBMITTED WHEN REMOVING OIL

摘要

The present invention relates to the use of reducing the hydrodynamic resistance of the agent in the amount of 50-400 hours / million in water, having an electrolyte content of 0.01-7 wt.%. The drag reducing agent includes two zwitterionic surfactants, each of which contains acyl, and an anionic surfactant, in which the hydrophilic group is a sulfate, sulfonate, or ether sulfate. A water-containing drag-reducing agent is suitable for use in the injected water during oil production. The international application was published along with an international search report.