Corrosion-preventive method of protection of crude-oil production equipment

摘要

The invented corrosion-preventive method of protection of crude-oil production equipment consists in adjusting the produced, transported and stored media with metal corrosion inhibitors, which contain a film-forming fatty amine with unsaturated fatty alcohol. In order to protect wells for production of crude oil in environment of carbon dioxide, there is forced in the well every second working hour 10 to 50 L of aqueous octadecylamine emulsion containing 1 to 20 percent by weight octadecylamine and 0.0001 to 0.1 percent by weight unsaturated alcohols, particularly propargylalcohol. At locations of constant contamination by water phase plus salt in tons and at certain dwell thereof, the equipment is brought by means of an industrial potentiostat in the conditions of a cathode and a sacrificed anode is then situated in the water environment.