1results about How to "Easy to flow back" patented technology

This invention provides a small molecule gelling agent and its preparation and application. The method includes: mixing methacryloyloxyethyltrimethylammonium chloride, acrylamide, cationic monomer, and perfluorooctyl acrylate in a certain proportion, diluting with water, adjusting the pH to 5-6, and dissolving to obtain a mixed solution; adding an initiator and an oxidant to the mixed solution, sealing, purging with nitrogen gas, adding a reducing agent, sealing again, heating in a water bath, and stopping the reaction after 4-12 hours to obtain a gel block; chopping the gel block, drying, and grinding it into powder to obtain the small molecule gelling agent. The preparation process of the small molecule gelling agent prepared by this invention is simple, the raw materials are easy to obtain, and all substances in the reaction process are products with no byproducts. The small molecule gelling agent prepared by this invention has good temperature resistance, acid resistance, and corrosion resistance, and its retarding ability meets the requirements of the field. It also has low viscosity, is easy to backflow, and has minimal damage to the formation.