Synthesis process of thick oil emulsifying viscosity reducer

Abstract

The invention discloses a synthesis process of a thick oil emulsifying viscosity reducer. The synthesis process comprises the following steps: (a) performing a condensation reaction on octylphenol polyoxyethylene ether and formaldehyde; (b) performing a sulfonation reaction on a co-condensation polymer and concentrated sulfuric acid; and (c) finally neutralizing to prepare the thick oil emulsifying viscosity reducer. According to the synthesis process disclosed by the invention, the thick oil emulsifying viscosity reducer can be successfully synthesized, the synthesis efficiency is high, the cost required for synthesis is low, and the various performance parameters of the synthesized thick oil emulsifying viscosity reducer are excellent.

Description

technical field [0001] The invention relates to a synthesis process of a thick oil emulsification viscosity reducer. Background technique [0002] As the availability of conventional oil is decreasing day by day, heavy oil is becoming an important energy source for mankind in the next century. After more than 20 years of hard work, the global heavy oil industry has developed faster than conventional oil. The annual output of heavy oil and tar sands has increased from 20 million tons to nearly 100 million tons, and its importance has attracted increasing attention. The difficulty of heavy oil reservoir development is mainly manifested in two aspects: on the one hand, the viscosity of heavy oil is high, and the seepage resistance of heavy oil in the oil layer is large, so that the heavy oil cannot flow from the reservoir to the bottom of the well; on the other hand, even in the reservoir Under certain conditions, the heavy oil can flow into the bottom of the well, but during ...

AI Technical Summary

Problems solved by technology

However, neither of these two types of surfactants can be used alone in reservoirs with high temperature and salinity.