| abstract |
The invention belongs to the technical field of oil-displacing agent preparation, and discloses a preparation method and an intelligent control system of a nano-emulsion oil-displacing agent. Crosslinking agent and monomer alkaline water mixed solution, mix to obtain monomer water phase solution; mix mineral oil and emulsifier to obtain oil phase; add oil phase to monomer water phase solution, add nanoemulsion, heat to maintain reaction Under the protection of nitrogen, the polyacrylamide, oxidant and water balance are mixed with the emulsion, and the polymerization reaction is carried out under stirring conditions for 3 to 5 hours, namely The nanoemulsion oil-displacing agent is obtained. The raw material components of the invention are simple, the prepared nano-emulsion oil displacement agent can reach any corner of the oil reservoir connection, intelligently expand the sweep volume dynamically along the process, improve the oil washing efficiency, and completely displace the captured crude oil, thereby improving the oil field. recovery rate. |