1results about How to "Sensitive to temperature" patented technology

This invention provides a temperature-sensitive high-temperature resistant suspension stabilizer for oil-based drilling and completion fluids and its preparation method. The preparation method includes the following steps: a) mixing dimer acid monomers and acid anhydride monomers, stirring at 80-90°C until fully mixed, and then purging with nitrogen to remove oxygen, obtaining a first mixture; b) adding a dimer fatty amine monomer to the first mixture obtained in step a, stirring evenly, obtaining a second mixture; c) slowly adding polyethylene polyamine to the second mixture obtained in step b, then heating to 130-180°C, stirring and reacting, removing water from the product solution after the reaction, obtaining the product; d) cooling the product obtained in step c to room temperature, thus obtaining the temperature-sensitive high-temperature resistant suspension stabilizer. The beneficial effects of this invention are: the prepared temperature-sensitive high-temperature resistant suspension stabilizer for oil-based drilling and completion fluids has excellent high-temperature resistance and can effectively enhance the suspension stability of oil-based drilling and completion fluids under high-temperature conditions.